SULFUR REDUCTION
OF ILLINOIS COALS—
WASHABILITY STUDIES
R. J. Helfinstine, N. F. Shimp, J. A. Simon, and M. E. Hopkins
Report of Study Phase II, supported in part by U. S. Public Health
Service, Department of Health, Education and Welfare Contract
No. PH 86-67-206 July 28, 1971
Prepared at the ILLINOIS STATE GEOLOGICAL SURVEY, Vrbana, TLUnoia
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STATE OF ILLINOIS
DEPARTMENT OF
REGISTRATION AND
EDUCATION
WILLIAM H. ROBINSON,
DIRECTOR. SPRINGFIELD
BOARD OF NATURAL
RESOURCES AND
CONSERVATION
CHAIRMAN • • WILLIAM H. ROBINSON
GEOLOGY • - - - LAURENCE L. BLOBS
CHIMISTRY .... RQOER ADAMS
ENGINEERING • ROBERT H. ANDERSON
BIOLOGY THOMAS PARK
FORESTRY • • • CHARLES E. OLMSTED
UNIVERSITY OF ILLINOIS
DEAN WILLIAM L. EVERITT
SOUTHERN ILLINOIS UNIVERSITY
DEAN ROGER E. BEVLER
ILLINOIS STATE GEOLOGICAL SURVEY
NATURAL RESOURCES BUILDING, URBANA, ILLINOIS 618OI TELEPHONE 217 344-1481
JOHN C. FRVE, CHIEF
July 28, 1971
. Uvuiy R. C/uunet
Env4Jionme.ntaJt Protection Agency
Research. Triangle. Park, WC 27711
Re: Contract No. ?H 86-67-206
Vear Mr. Cramer:
We are, submitting this ^inal re.port on Phase. 11, ."<
Reduction o£ Itlinoii Coals— diashabilUty Studies," completed u)ith
support under tine, above, designated contract. The. Phase. 11 re.port
includes studies made, in the. period June. 12, 1969, through July 31,
1971, and expands and supplements data presented in the. ^inal
on Phase. 1 studies furnished two years ago.
We nave app^ecattecf the. opportunity to wotik
you. Jn.
toy J.
N
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SULFUR REDUCTION OF ILLINOIS COALS—
WASHABILITY STUDIES
R. J. Helfinstine, N. F. Shimp,
J. A. Simon, and M. E. Hopkins
Report of Study Phase II, supported in part by
U.S. Public Health Service, Department of Health,
Education and Welfare Contract No. PH 86-67-206!
July 28, 1971
Prepared at the ILLINOIS STATE GEOLOGICAL SURVEY, Urbana, Illinois
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CONTENTS
Summary 1
Introduction and Analysis of Problem 2
Apparatus and Procedures 2
Sources of Samples 3
Use of Computer 4
Results 4
Size Analyses 4
Washability Data 5
Sulfur Removal Potential 5
Percentage of Sulfur Reduction 5
Small Samples for Washability Tests . 7
Washability Tests on Core Samples 8
Channel Sample Analyses 14
Ash Fusion and Hardgrove Grindability .... 15
Conclusions 17
TABLES AND FIGURES
Table 1 - Sources of samples 4
Table 2 - Analyses of total sulfur (in ascending order), pyritic sulfur,
and ash 6
Table 3 - Percentages of samples within various sulfur ranges 7
Table 4 - Sulfur reductions at 80 and 40 percent recoveries ....... 8
lo- ||
Table 5 - Comparison of washabilities of small and large samples . . 11 IS
Table 6 - Comparison of washabilities of column and core samples . . . . 14
Table 7 - Chemical analyses of channel samples 15
Table 8 - Ash fusion and Hardgrove grindability 16
Figure 1 - Washability characteristics of Sample 26 9
I
Figure 2 - Washability characteristics of Sample 24 10
Figure 3 - Comparison of washabilities of column and core samples .... 13
APPENDIX
Table A. Float-and-sink data for column samples 18-26
Table B. Float-and-sink data for core samples 27-28
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SULFUR REDUCTION OF ILLINOIS COALS—
WASHABILITY STUDIES
R. J. Helfinstine, N. F. Shimp,
J. A. Simon, and M. E. Hopkins
SUMMARY
This report describes Phase II of an investigation to determine,
by gravity separation technique, the extent to which the sulfur content of
Illinois coals can be reduced and to study other washability characteristics.
Twenty-seven mine samples were obtained, crushed to a top size of 3/8 inch,
screened to 3/8 inch x 28 mesh, and separated into several specific gravity
fractions, which were subsequently analyzed.
It was found that only 5 of the 27 samples came from mines that
could produce coal with less than 1.5 percent total sulfur, and these 5
samples were from mines with relatively low sulfur content in the raw coal.
(These figures do not represent proportion of production.) The sulfur con-
tent of coal from many mines could be reduced 1.5 or more percentage figures-
for example, from 3.5 to 2.0 percent. The percentage' reduction of total sul-
fur was also high for many samples, with a maximum reduction of 65 percent
with 80 percent float coal recovery. The average reduction was 36 percent
with 80 percent recovery.
Washability tests were made on both 10-pound and 100-pound repre-
sentative splits from 23 samples. The results from these tests with the two
quantities exhibited a close correlation. Likewise, a close correlation
existed between data from 2-inch diameter core samples and those from col-
umn samples obtained from the mines in nearby locations.
The ash fusion and Hardgrove grindability of the 1.60 specific
gravity sink fraction (refuse) did not exhibit a consistent variance from
those of a channel sample of coal from the same mine. However, the grind-
abilities of some of the refuse samples were considerably greater than
those of the channel samples.
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- 2 -
INTRODUCTION AND ANALYSIS OF PROBLEM
When coal is completely burned, all of the sulfur in the coal is
released as sulfur dioxide (802), which is normally discharged into the
atmosphere. A major objective of many current pollution control projects
is the reduction of this S02 discharge. An obvious way to reduce the emis-
sion is to reduce the sulfur content of the coal being burned.
The possible reductions in sulfur (and ash) of a coal washed in
a commercial preparation plant can be estimated after making float-and-
sink (washability) tests with samples of the raw coal in a laboratory. As
described in more detail in the procedure section, this process is essen-
tially the determination of the percentages and chemical compositions of
the coal fractions that float and sink in liquid baths of different specific
gravities.
The basic objective of this investigation was to determine the
washability characteristics of Illinois coals, with particular emphasis
on the quantity, distribution, and varieties (forms) of sulfur in the
coals. A report on the first phase of this investigation was submitted
to the U. S. Public Health Service on August 10, 1969. During Phase II
of this study, washability tests were made on coal samples from most of
the Illinois mines not sampled in Phase I. In addition, the possibility
of using diamond-drill core samples of a type commonly obtained in explor-
atory drilling (NX-size core, approximately 2 inches in diameter) for
washability tests was studied.
APPARATUS AND PROCEDURES
The equipment used for Phase II was essentially the same as that
used for Phase I. The main pieces of equipment were crushers, screeners,
sample splitters, and separatory vessels. Appropriate mixtures of per-
chloroethylene and naphtha were used to make solutions of the desired
gravity for the separations.
The Phase I study indicated that the washability characteristics
of Illinois coals having a top size of 1 1/2 inches usually did not vary
significantly from those obtained with a top size of 3/8 inch. Because of
this similarity of results with the two size ranges and since the 3/8-inch
top size would allow the use of a smaller quantity of coal for the wash-
ability and chemical tests, a 3/8-inch top size was used for all tests
described in this report. A bottom size of 28 mesh (Tyler screen series)
was selected because 1) it was considered the finest size of Illinois coal
that could be readily separated by gravity methods /and 2) only a small propor-
tion of the coal would be finer than 28 mesh after crushing to the top size
of 3/8 inch.
During Phase I of the investigation, a 1-ton sample of raw coal
was obtained from the tipple or pit. It was difficult, however, to obtain
a representative sample; therefore, a different method of sampling was used
for this phase. The usual sampling procedure during this phase was to cut
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- 3 -
an 80-pound column sample from each of three freshly exposed coal faces at
separate working areas of a mine or pit. This procedure provided a total
sample of 240 pounds per mine or pit. Normal face channel samples, which
excluded mineral bands 3/8 inch or more in thickness, also were cut from
the same general locations.
The column samples were crushed to a top size of 3/8 inch by
a roll crusher and screened at 28 mesh to give 3/8 inch x 28-mesh and
28-mesh x 0 fractions. Chemical analyses, including total sulfur and
varieties of sulfur, proximate analysis, free swelling index, Gieseler
plasticity, and heating value,'were made on representative samples of
these two size fractions.
Approximately 100 pounds of the 3/8-inch x 28-mesh coal were
used for the gravity separations, which were made "progressively," i.e.,
the sink fraction from a bath with a lower specific gravity was placed
in a bath of higher specific gravity until the desired maximum specific
gravity of 1.60 was used. Five different gravity solutions were used
for most coal samples. Chemical analyses, which included total sulfur,
sulfate sulfur, pyritic sulfur, organic sulfur, and ash, were made on
all float coal fractions and on the 1.60 specific gravity sink material.
The free swelling index, Gieseler plasticity, and heating value also were
determined on the float coal of the lightest gravity. The Hardgrove
grindabilities and ash fusion temperatures were determined for the 1.60
sink material by Commercial Testing and Engineering Company, Chicago,
Illinois.
One of the objectives of this investigation was to learn
whether useful washability data could be obtained with approximately
2-inch diameter diamond-drill cores of coal. Since about a 10-pound
sample of coal is obtained from such a core in a 6-foot seam of coal,
washability tests were made on 10-pound samples which had been riffled
from the large samples of coal used for washability tests.
The tests and chemical analyses made on the face channel samples
of coal included'proximate analysis, ultimate analysis, free swelling
index, Gieseler plasticity, heating value, varieties of sulfur, chlorine,
Hardgrove grindability, and ash fusion temperatures. These tests and
analyses, except for grindability and ash fusion, were made by the Ana-
lytical Chemistry Section of the Illinois State Geological Survey.
Sources of Samples
Twenty-seven mine samples were obtained for Phase II of the
investigation. Table 1 lists the samples by general location in Illinois
and by seam. Sample 3 was cut from a coal face that had been exposed for
an appreciable period and might have been oxidized; hence another sample
(No. 14) was obtained from a freshly exposed face at the same mine at a
later date. Sample 21 was obtained for comparison with some cores that
had been drilled nearby. No channel sample was cut when column sample
21 was taken from the mine because such a sample had been taken during
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- 4 -
TABLE 1 - SOURCES OF SAMPLES
Sample
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Location
Southern
Northern
Southern
Southern
Central
Northern
Northern
Northern
Southern
Southern
Southern
Northern
Northern
Southern
Southern
Southern
Northern
Southern
Southern
Southern
Central
Central
Southern
Southern
Northern
Southern
in Illinois
and western
and western
and western
and western
and western
and western
and western
and western
Southwestern
Seam
6
6
6
6
6
6
6
5
Murphysboro
Reynoldsburg
6
6
4
6
6
5
6
Reynoldsburg
Dellwood
5
6
7
6
6
5
— —
6
the Phase I study. Samples 10 and 18 were obtained from the same mine at
different locations and at different times; therefore no channel sample
was taken with column sample 10.
Use of Computer
Most of the data obtained from this study were punched on cards,
and an IBM 360-75 computer was used for the compilation of many of the tables.
In addition, a computer program was developed to give percentages of total
sulfur, pyritic sulfur, and ash for any desired percentage of coal recovery.
RESULTS
Size Analyses
The float-and-sink tests were all made on one size range—3/8
inch x 28 mesh, which represented an average of 92 percent of the 3/8Hlnch
x 0 sample. The minimum percentage of 3/8 inch x 28 mesh was 87 with sam-
ple 19; the maximum was 94 with sample 25.
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- 5 -
Washability Data
The complete data from the float-and-sink tests for the column
samples are given in table A in the appendix. Similar data.for the core
samples are given in table B. The data labeled "calc. (calculated) whole
coal" are the data from the washability tests as calculated for 100 per-
cent float (or 100 percent sink), which is equivalent to the original raw
coal sample. Since a representative fraction of the raw coal sample was
analyzed directly, the raw coal analyses are labeled "anal, (analyzed)
whole, coal" and appear directly below the calculated whole coal figures
for convenient comparisons. In most cases the agreement is excellent.
The suffix S after a sample number refers to data from a 10-
pound sample. A suffix C indicates a core sample. All analyses are
given on the dry basis.
Sulfur Removal Potential
A stated objective of this investigation was to determine the
sulfur content to which Illinois coals could be reduced by gravity separa-
tions. Table 2 has been prepared to provide this information for the 27
samples studied in Phase II. It lists the percentages of total sulfur,
pyritic sulfur, and ash, at 40, 60, and 80 percent recoveries, with the
samples arranged in ascending order of total sulfur percentage. There are
four samples (19, 18, 1, and 10) that had less than 1 percent total sulfur
at all recovery levels shown. \0f these four, only sample 1 was obtained
from a mine in current production and with appreciable unmined reserves.
Samples 10 and 18 were obtained from one mine at different times and loca-
tions within the mine. Sample 19 is from a small'local strip mine which
has very small reserves.
Sample 24, which was obtained from a large mine in southern Illinois
had float coal with less than 1.5 percent total sulfur content at 80 percent
recovery. It was the only sample in the 1.0 to 1.5 percent sulfur range.
Table 3 summarizes the data shown in table 2 and indicates that
only 41 percent of the coals sampled had less than 2.5 percent sulfur in
the float coal fraction with 80 percent recoveries. Because only the
impurities within the seam of coal were Included in the raw coal samples
(i.e., no roof or floor was included), the percentage of ash in a reject
of 20 percent (80 percent recovery) was often relatively low.
Percentage of Sulfur Reduction
Although only a small proportion of Illinois coals can be prepared
within the sulfur limits proposed by many regulations, a large proportion of
Illinois coals can be prepared to give a material reduction in sulfur on both
percentage and weight bases. Obviously if a plant burns coal with 2^ percent
sulfur in place of one with 5 percent sulfur, the reduction in SO2 emission
will be about 50 percent. Such a substitution would result in S02 reduction
equivalent (on a weight basis) to that resulting from using a coal containing
1 percent sulfur in place of one containing 3% percent sulfur.
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- 6 -
TABLE 2 - ANALYSES OF TOTAL SULFUR (IN ASCENDING ORDER), PYRITIC SULFUR, AND ASH
40 percent
Sample
recovery
Sulfur (%)
Total
Pyritic
Ash
(%)
60 percent
Sample
recovery
Sulfur (%)
Total
Pyritic
Ash
(%)
80 percent recovery
Sample
Sulfur (%)
Total 1 Pyritic
Ash
(%)
19
18
10
1
24
11
16
9
15
14
3
20
4
25
7
12
2
6
22
23
17
13
8
21
5
26
27
0.53
0.71
0.81
C.B4
1.37
1.62
1.76
1.85
1.92
,1.99
2.06
2.07
2.15
2.21
2.39
2.40
2.46
2.46
2.49
2.56
2.59
2.77
2.81
3.18
3.21
3.39
3.83
0.02
0.15
0.17
0.26
0.41
0.36
0.72
0.75
0.45
0.44
0.39
0.45
0.44
0.32
0.49
0.43
0.48
0.42
0.71
0.51
0.33
0.56
0.55
0.49
0.44
1.57
0.38
3.0
3.5
3.4
3.2
3.1
2.9
4.5
3.6
2.1
3.0
2.9
4.5
3.5
6.0
2.8
2.4
2.2
2.4
3.0
3.1
2.9
3.5
6.1
4.1
4.2
8.4
3.7
19
18
1
10
24
11
16
15
14
3
25
20
9
4
12
7
6
2
22
23
17
13
8
21
5
26
27
0.53
0.71
O.BO
0.85
1.41
1.74
1.86
2.04
2.06
2.16
2.23
2.24
2.24
2.32
2.49
2.55
2.57
2.58
2.68
2.71
2.75
2.88
2.91
3.16
3.32
3.68
3.85
0.02
0.17
0.23
0.22
0.43
0.48
0.84
0.63
0.55
0.51
0.36
0.67
1.10
0.65
0.52
0.66
0.58
0.60
0.87
0.69
0.48
0.67
0.65
0.53
0.56
1.87
0.54
3.6
4.1
3.7
4.3
3.9
4.1
5.5
3.8
4.1
4.2
7.0
5.9
5.0
4.9
3.2
3.8
3.4
3.1
4.3
4.6
4.4
4.3
6.5
4.7
5.4
10.2
4.9
19
18
1
10
24
11
16
14
25
3
15
20
4
12
6
9
2
7
22
17
23
13
8
21
5
27
26
0.57
0.72
0.79
0.93
1.48
1.91
2.07
2.21
2.26
2.32
2.35
2.59
2.66
2.67
2.80
2.84
2.84
2.90
2.93
2.93
2.95
3.08
3.22
3.36
3.51
4.07
4.07
0.07
0.19
0.22
0.31
0.50
0.65
1.08
0.73
0.42
0.72
0.95
1.04
1.06
0.70
0.87
1.67
0.88
1.01
1.13
0.66
1.02
0.85
0.96
0.79
0.81
0.90
2.31
4.6
4.7
5.1
5.5
5.6
6.0
6.9
6.0
8.6
6.6
6.6
7.6
7.2
4.6
5.5
6.9
4.8
6.1
6.6
6.8
6.8
5.7
7.5
6.3
7.3
6.8
12.6
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- 7 -
TABLE 3 - PERCENTAGES OF SAMPLES WITHIN VARIOUS SULFUR RANGES *
Sulfur range
(%)
Percentage of samples
80% recovery
60% recovery
40% recovery
0
0
0
0
0
0
0
0
- 1
0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
15
19
22
41
78
89
93
100
15
19
26
56
85
93
100
100
15
19
37
70
85
96
100
100
*27 samples tested.
Table 4 has been prepared to show the total and pyritic sulfur
reductions that were obtained with the 27 samples described in this report.
The greatest percentage of reduction with 80 percent recovery was 65.3 with
sample 10. The greatest numerical reduction in total sulfur with 80 percent
recovery was from 5.64 percent to 2.66 percent with sample 4. The percentage
of sulfur in the raw coal with sample 26 was less than that in the 80 percent
float fraction; this is probably caused by a relatively low sulfur content in
the shale that was in the sink fraction and a high percentage of finely dis-
tributed pyrite that was in the float fraction. The washability data for
this coal sample are plotted in fig. 1.
The average reductions in total sulfur with 80 and 40 percent
recoveries were 36.1 and 43.4 percent, respectively, for all samples.
The average pyritic sulfur reductions were 62.9 and 76.8 with 80 and 40
percent recoveries, respectively.
Small Samples for Washability Tests
Table 5 lists the percentages of total sulfur, pyritic sulfur,
and ash for 40, 60, and 80 percent recoveries for the 27 column samples
included in this phase of the investigation. Also shown are the correr-
sponding values for the tests made on the small samples (suffix S). The
differences between the values given for the large and small samples are
usually less than those specified by ASTM for analytical tolerance between
laboratories.
Figures 1 and 2 illustrate the similarity of results with the
large and small samples. The curves are considered as the best fit for
the data obtained with the large samples. The deviations from the curves
of the datum points for the small samples are considered minor.
Although the data obtained from the washability tests on 10-
pound samples of 3/8-inch x 28-mesh coal were generally satisfactory,
the use of more than 10 pounds, if available, is recommended.
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- 8 -
TABLE 4 - SULFUR REDUCTIONS AT 80 AND 40 PERCENT RECOVERIES
Sample
Row coal
Total
sulfur
Pyriclc
sulfur
(I)
80 percent recovery
Total
sulfur
Reduc-
tion
m
Pyrltlc
sulfur
(Z)
Reduc-
tion
40 percent recovery .
Total
sulfur
(I)
Reduc-
tion
m
Pyritlc
sulfur
Reduc-
tion
(Z)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2L
22
23
24
25
26
27
Average
0.84
4.J3
3.90
5.64
5.10
4.46
4.67
4.61
5.41
2.o8
3.40
3.7*
4.5t)
4.00
4. IS
3.42
3.96
1.49
l.ju
4.00
5.4U
4.73
4.0U
1.95
3.00
3./2
6.03
3.90
0.28
2.34
2.61
4.15
2.24
2.M
2.90
2.23
4.17
2. or
2.07
1.89
2.33
2.63
2.81
2.45
2.C8
0.93
0.76
2.46
2.54
2.98
2.80
1.06
1.21
2.51
2.72
2.28
0.79
2.84
2.32
2.66
3.51
2.80
2.90
3.22
2.84
0.93
1.91
2.67
3.08
2.21
2.35
2.07
2.93
0.72
0.57
2.59
3.36
2.93
2.95
1.48
2.26
4.07
4.07
2.48
5.4
34.3
40.5
52.8
31.1
37.3
38.0
3C.2
47.5
t>5.3
44.8
28.3
32.7
44.9
43.3
39.4
25.9
52.0
58.0
35.3
38.7
38.2
35.8
24.3
26.7
-9.5
32.5
36.1
0.22
0.88
0.72
1.06
0.81
0.87
1.01
0.96
1.67
0.31
0.65
0.71
0.85
0.73
0.95
1.08
0.66
0.19
0.07
1.04
0.79
1.13
1.02
0.50
0.42
2.31
0.90
0.83
19.7
62.6
72.6
74.4
64.0
65.3
65.3
57.1
60. 1
84.4
68.5
62.6
63.4
72.2
66.1
55.9
68.2
79.4
91.2
57.9
69.0
62.2
63.5
53.2
64.9
8.1
67.1
62.9
O.B4
2.46
2.06
2.15
3.21
2.46
2.39
2.81
1.85
0.81
1.62
2.40
2.77
1.99
1.92
1.76
2.59
0.71
0.53
2.07
3. 18
2.49
2.56
1.37
2.21
3.39
3.83
2.16
0.1
43.3
47.2
61.9
37. 1
44.8
48.8
39.0
65.7
69.7
63.1
35.5
39.5
60. 3
53.7
48.5
J4.5
52.4
60.9
48.2
41.9
47.3
44.3
29.7
28.3
8.9
36.5
43.4
,0.26
0.48
0.39
0.44
0.44
0.42
0.49
0.55
0.75
0.17
0.36
0.43
0.56
0.44
0.45
0.72
0.33
0.15
0.02
0.45
0.49
0.71
0.51
0.41
0.32
1.57
0.38
0.47
6.9
79.6
65.2
89.4
80.2
83.1
83.2
75.3
81.9
91.4
82.4
77.4
75.8
83.4
84.1
70.5
84.2
83.4
97.7
81.7
80.9
76.3
81.9
61.4
73.4
37.4
85.9
76.8
Washability Tests on Core Samples
.One set of core and column samples (33C and 21) was obtained
precisely as desired. Column sample 21 was cut from a coal face about
65 feet from diamond-drill core sample 33C, which had been drilled from
the surface. The data are plotted in fig. 3. The curves drawn are con-
sidered as the best fit for the column sample. The plotted points repre-
senting the data obtained with the core sample are quite close to the
curve. The greatest variance of points from the curve as drawn are the
calculated values for the raw coal (100 percent sink or 100 percent float).
Core samples 32C and 34C were taken about 3,000 feet from column
sample 21. The data from the washability tests of these two cores are also
plotted in fig. 3 and agree with the trend indicated by curves for the large
column sample.
(Text continued on page 14.)
-------
-------
- 10 -
TABLE 5 - COMPARISON OF WASHABILITIES OF SMALL AND LARGE SAMPLES
40 percent recovery
Sample
Sulfur (%)
Total
Pyritic
Ash
(%)
60 percent recovery
Sulfur (%)
Total
Pyritic
Ash
(%)
80 percent recovery
Sulfur (%)
Total
Pyritic
Ash
(%)
1
2
3
4
5
5S
6
6S
7
7S
8
8S
9
9S
10
IOS
1 1
1 IS
12
I2S
13
I3S
14
I4S
15
0.79
2.46
2.C6
2.15
3.21
3.29
2.46
2.50
2.39
2.40
2.81
2.96
1.85
1.88
0.81
0.84
1.62
1.64
2.40
2.42
2.77
2.66
1.99
1.93
1.92
0.22
C.48
0.39
C.44
0.44
0.53
C.42
0.51
C.49
0.49
0.55
0.65
0.75
0.89
0.17
0.20
C.36
0.40
0.43
C.42
0.56
0.56
0.44
0.44
0.45
3.2
2.2
2.9
3.5
4.2
4.2
2.4
2.9
2.8
2.5
6.1
5.6
3.6
4.2
3.4
3.4
2.9
2.8
2.3
2.4
3.5
3.3
3.0
3.2
2.1
0.79
2.58
2.16
2.32
3.32
3.30
2.57
2.56
2.55
2.55
2.91
3.03
2.24
2.02
'0.85
0.87
1.74
1.78
2.49
2.51
2.88
2.75
2.06
1.99
2.04
0.22
0.60
0.51
0.65
0.56
0.57
0.58
0.58
0.66
0.64
0.65
0.73
I. 10
1.09
0.22
0.23
0.48
0.50
0.52
0.53
0.67
0.65
0.55
0.52
0.63
3.7
3.1
4.2
4.9
5.4
5.2
3.4
3.4
3.8
3.4
6.5
6.1
5.0
5.1
4.3
4.1
4.1
4.0
3.2
3.3
4.3
4.1
4.1
3.9
3.8
0.79
2.84
2.32
2.66
3.51
3.45
2.80
2.77
2.90
2.85
3.22
3.30
2.84
2.51
0.93
0.94
1.91
1.95
2.67
2.66
3.08
2.94
2.21
2.15
2.35
0.22
0.88
0.72
1.06
0.81
0.79
0.87
0.84
1.01
0.94
0.96
1.00
1.67
1.64
0.31
0.32
0.65
0.67
0.71
0.70
0.85
0.86
0.73
0.71
0.95
5.1
4.8
6.6
7.2
7.3
7.0
5.5
5.5
6.1
5.4
7.5
7.0
6.9
6.9
5.5
5.4
6.0
5.9
4.9
5.0
5.7
5.5
6.0
6.0
6.6
-------
- 11 -
TABLE 5 - CONTINUED
40 percent recovery
Sample
Sulfur (%)
Total
Pyritic
Ash
(%)
60 percent recovery
Sulfur (%)
Total
Pyritic
Ash
(%)
80 percent recovery
Sulfur (%)
Total
Pyritic
Ash
(%)
155
16
I6S
17
I7S
18
I8S
19
I9S
20
20S
21
2IS
22
22S
23
235
24
24S
25
255
26
26S
27
275
2.C8
1.76
1.78
2.59
2.75
0.71
0.70
0.53
0.57
2.07
2.20
3.14
3.38
2.49
2.77
2.56
2.66
1.37
1.25
2.21
2.26
3.39
3.30
3.81
3.82
0.47
0.72
G.76
0.33
C.60
0.15
0.12
0.02
C.08
C.45
0.54
0.48
0.46
0.71
C.89
0.51
0.63
0.41
C.33
0.32
0.34
1.57
1.61
0.38
0.43
3.3
4.5
4.8
2.9
3.9
3.5
3.5
3.0
3.2
4.5
4.6
4.1
4.0
3.0
4.1
3.1
4.2
3.1
2.4
6.0
7.0
8.4
8.0
3.7
4.1
2.13
1.86
1.82
2.75
2.80
0.71
0.70
0.53
0.57
2.24
2.34
3.16
3.43
2.68
2.91
2.71
2.71
1.41
1.32
2.23
2.26
3.68
3.57
3.85
3.82
0.56
0.84
0.83
0.48
0.66
0.17
0.12
0.02
0.08
0.67
0.67
0.53
0.52
0.87
1.02
0.69
0.70
0.43
0.38
0.36
0.34
1.87
1.92
0.54
0.52
4.5
5.5
5.6
4.4
4.6
4.1
4.0
3.6
3.8
5.9
6.0
4.7
4.7
4.3
5.1
4.5
4.8
3.9
3.3
7.0
7.2
10.2
9.9
4.9
5.1
2.39
2.07
1.97
2.93
3.01
0.72
0.70
0.57
0.58
2.59
2.63
3.36
3.62
2.93
3.08
2.95
2.91
1.48
1.39
2.26
2.29
4.07
3.94
4.07
4.02
0.87
1.08
1.04
0.66
0.92
0.19
0.15
0.07
0.08
1.04
1.02
0.79
0.76
1.13
1.22
1.02
0.97
0.50
0.47
0.42
0.41
2.31
2.33
0.90
0.86
6.8
6.9
6.9
6.8
7.4
4.7
4.6
4.6
4.7
7.6
7.7
6.3
6.2
6.6
7.0
6.8
6.9
5.5
5.3
8.6
8.6
12.6
12.3
6.8
7.0
-------
- 12 -
. 6
§4
-------
- 13 -
cc
LJ
0.
.
CO
0
26
24
22
20
18
gj 14
Q.
• SAMPLE 21
A SAMPLE 32 c
+ SAMPLE 33c
x SAMPLE 34c
10
20
30
40 50 60
RECOVERY. PERCENT
70
80
90
Fig. 3 - Comparison of washabilities of column and core samples.
-------
- 14 -
Washabllity tests were made on five coal cores from sources that
were about 4 to 10 miles from the source of column sample 5. Although the
chemical analyses of the whole cores varied considerably, the analyses of
the float products were quite similar. This result is shown in table 6,
which lists the total sulfur, pyritic sulfur, and ash for the raw coal sam-
ples and the 80, 60, and 40 percent float products.
TABLE 6 - COMPARISON OF WASHABILITIES OF COLUMN AND CORE SAMPLES
Sample
Raw
coal
80 percent
recovery
60 percent
recovery
40 percent
recovery
5
5C
6C
7C
8C
9C
5.10
4.60
5.56
5.24
5.54
5.12
Total sulfur, percent
3.51
3.69
3.71
3.58
3.88
3.79
32
48
36
42
3.52
3.56
3.21
3.38
3.26
3.38
3.37
3.45
Pyritic sulfur, percent
5
5C
6C
7C
8C
9C
2.24
1.74
2.72
1.77
2.54
2.15
0.81
0.81
0.85
0.68
0.94
0.79
0.56
0.58
0.50
0.48
0.57
0.56
0.44
0.44
0.35
0.39
0.39
0.42
Ash, percent
5
5C
6C
7C
8C
9C
13.0
12.4
13.4
13.1
12.9
12.7
7.3
6.8
6.7
6.6
7.4
6.9
5.4
5.1
4.8
4.9
5.4
5.1
4.2
3.7
3.6
3.8
4.1
3.7
Channel Sample Analyses
Channel samples, which excluded mineral bands of 3/8 inch or
more in thickness, were taken at 25 of the 27 sources sampled during this
study. These samples are considered fairly representative of coals which
have received a minimum of preparation at the mines. The chemical analy-
ses for these channel samples are given in table 7.
-------
- 15 -
TABLE 7 - CHEMICAL ANALYSES OF CHANNEL SAKFLBS*
Sample
1
2
1
4
5
6
7
6
9
10
11
12
13
1*
15
16
17
IS
IV
20
21
22
23
2*
25
26
27
Mol..f
(t)
1*.2
15.8
7.3
3.2
13.7
13.0
IB. 2
is.e
!.3
8.3
17.0
12.5
6.6
6.4
7.6
16.0
6.7
9.1
5.9
V.H.'
(I)
46. «
42.0
38.0
37.7
41.2
39.4
41.4
43. J
37.0
30. t
4J.O
4S.e
38.3
IV. i
17. 0
4i. J
32.0
25.0
J9.5
F.C.*
(t)
54.3
43.5
49.6
50.3
44.7
4d.6
49.1
44.3
51.8
51.4
45.1
44.2
50.3
47.4
10.8
43.8
61.0
56.7
40.7
Ash
(I)
8.8
14.4
12.4
11.9
14.1
12. C
9.5
12.5
11.2
10.3
11.9
10.0
11.4
13.3
12.2
12.9
7.1
8.2
11. 6
«'
(I)
4.90
4.63
4.54
4.83
4.59
4.5B
4.97
4. ad
4.91
5.08
5.07
5.22
4.88
4.79
4.66
4.91
4.81
4.93
5.03
cf
(I)
75.13
67.70
69.49
71.46
66.25
69.97
71.79
68.99
11.21
72.06
68.71
70.61
70.95
69.59
71.23
69.53
77.72
75.43
71.57
Nf
(J)
1.52
1.04
1.27
1.3S
1.23
1.25
1.11
1.14
1.35
No
1.56
1.11
1.18
1.27
1.36
1.42
1.10
1.4)
1.50
1.48
of
(t)
e. 77
8.51
8.96
6.44
9.01
8.95
9.43
7.94
6.43
SI.*
(Z)
0.0
0.05
0.08
0.04
0.11
0.33
0.04
0.05
0.05
Sulfur
F,r.f
(I)
0.29
1.81
1.79
1.87
2.27
0.97
1.22
2.33
3.78
Org.'
(I)
0.56
1.82
1.44
1.60
2.46
1.95
1.94
2.14
1.07
<»
0.85
3.68
3.31
3.51
4.S4
3.25
3.20
4.52
4.90
Chlorine
(I)
0.34
0.0
0.10
0.18
0.17
0.02
0.01
0.01
0.09
(I)
0.23
0.0
0.01
0.0
C.OB
0.0
0.01
0.01
0.0
Heating
(Btu)
13290
12109
12470
13140
12050
12400
12810
12480
12990
Cleaeler
city*
6
21
317
28500
4
2
3
25
220
Free
Index
5.0
2.5
6.0
8.0
4.5
2.5
3.0
0.0
6.0
data are available.
a. 61
10.02
9.18
8.14
7.46
7.36
8.02
7.32
8.67
6.00
No data are t
12. 8
7.3
9.0
13.9
10.6
13.3
46.4
39.2
39.0
42.8
43.4
43.6
42.5
47.7
50.2
42.6
41.3
44.4
11.1
13.2
10. e
14.7
15.3
11.9
Values (except aolatvre) are given on
'dole. - aolsture; V.H
Org. - organic; V.5.
5.06
4.89
4.77
5.04
5.02
71.06
69.47
72.25
68.33
65.30
4.90 68.04
e dry basis.
- volatile matter; F.C.
water aoluble; deader
1.33
1.29
1.38
1.20
1.60
1.36
7.70
6.77
8.43
9.02
8.64
e.52
0.01
0.04
0.03
0.02
0.16
0.04
0.05
0.03
0.10
0.02
1.21
1.20
1.67
2.07
2. 11
2.30
1.54
1.10
0.76
2.62
1.15
1.91
2.10
1.26
1.38
0.83
1.96
0.54
0.37
1.51
2.37
3.15
3.80
3.35
3. SO
3.17
3.55
1.66
1.23
4.14
0.40
0.04
0.04
0.05
0.14
0.32
0.02
0.12
0.11
0.26
0.10
0.02
0.01
C.02
0.02
0.01
0.02
0.02
0.01
0.04
12980
12380
12920
12869
12562
12728
12455
13794
13280
12947
34
2
300
290
240
31
150
120
3
1100
5.5
4.0
4.0
6.5
6.5
6.5
4.5
7.0
1.0
6.5
vallable.
0.02
0.02
0.01
0.02
0.10
0.18
1.97
2.81
1.28
0.92
2.67
1.95
1.78
1.57
1.01
1.81
1.41
3.09
3.77
4.40
2.30
2. 75
4.18
5.22
0.19
0.13
0.41
0.02
0.03
0.10
• fixed carbon; H - hydrogen; C - carbon; N - nitrogen; 0 - oxygen; 51.
>lastlclty - aaximum fluidity, dial divisions per olnute.
0.08
0.01
0.14
0.0
0.01
0.08
12850
12627
12889
12301
11908
12254
- oulf.to; Pyr. -
1950
2000
10
a
18
14
pyrltlc;
5.5
7.5
5.5
5.0
4.0
4.5
Ash Fusion and Hardgrove Grindability
The utilization of refuse from a coal cleaning plant in a combustion
process designed to recover sulfur is being considered by others. The proper
design of this combustion equipment reportedly requires information about ash
fusion and grindability of the fuel. To gain some of the information desired,
the ash fusion temperatures and Hardgrove grindabilities were obtained for the
1.60 specific gravity sink material and are shown in table 8. Similar data for
the channel samples also are included in table 8 for comparison.
No consistent differences were found between the Hardgrove grindabil-
ity or ash fusion temperatures of the refuse material (1.60 specific gravity
sink) and those of the channel samples of coal. The average ash fusion temper-
atures were about 20° F higher with the refuse material (1.60 specific gravity
sink) than with the channel sample. The average Hardgrove grindability was
81.6 with the refuse material and 72.3 with the channel sample. The Hardgrove
grindability of some refuse samples, such as sample 7, was considerably higher
than the grindability of the corresponding channel coal samples.
-------
- 16 -
TABLE 8 - ASH FUSION AND HARDGROVE GRINDABILITY
Sample
Ash fusion temperatures, °F
Init. def.
temp.*
1.60
s.g.
sink*
chan-
nel
Softening
temp.
1.60
s.g.
sink*
chan-
nel
Hemispherical
temp .
1.60
s.g.
sink*
chan-
nel
Fluid
temp.
1.60
s.g.
sink*
chan-
nel
Hardgrove
Grindability
1.60
s.g.
sink*
chan-
nel
J.
3
U
6
7
8
9
1U
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Average
22 samples)
ZUJU
1920
2000
1960
2190
1890
2000
lOou
1900
2130
1930
1900
1920
2140
2040
1980
1970
2180
1960
1940
1960
2010
2280
2150
1920
2014
1970
1900
2120
2110
1940
1870
1960
2110
1870
1950
2030
1960
2040
1950
2070
1950
1930
1980
2020
1970
2000
1940
1984
^JIU
2100
2100
2170
2290
2050
2100
IJlU
2000
2230
2020
2000
2030
2350
2150
2100
2080
2310
2060
2020
2100
2110
2490
2350
2020
2144
2160
2140
2220
2210
2030
2030
2090
2200
2050
2040
2120
2060
2140
2220
2400
2050
2060
2100
2150
2080
2150
2080
2126
IJJU
2120
2135
2190
2320
2070
2120
2020
2250
2040
2020
2050
2370
2170
2130
2110
2340
2100
2050
2130
2140
2530
2380
2050
2170
2180
2160
2240
2230
2050
2050
2110
2230
2080
2060
2140
2080
2160
2260
2450
2080
2100
2130
2180
2110
2180
2110
2153
ituu
2280
2290
2280
2460
2170
2220
2120
2340
2130
2120
2160
2470
2280
2250
2210
2470
2200
2130
2250
2250
2650
2600
2150
2285
2280
2320
2330
2340
2150
2150
2200
2320
2180
2150
2240
2170
2250
2460
2600
2230
2280
2260
2260
2220
2270
2280
2270
oy.i
68.6
74.3
92.4
105.2
91.1
78.0
81.3
84.2
76.3
74.0
65.1
88.9
94.7
82.0
78.6
75.3
75.3
83.9
78.3
92.5
78.3
78.3
73.6
81.6
70.7
77.7
73.3
77.3
79.9
69.4
77.7
81.9
79.2
58.6
68.7
68.7
72.0
71.4
60.2
73.6
70.1
73.7
70.1
73.0
70.0
73.6
72.3
*Init. def. temp. - initial deformation temperature; 1.60 s.g. sink - 1.60 specific gravity sink.
-------
- 17 -
CONCLUSIONS
1. Only a small proportion of Illinois coals can be prepared with
a total sulfur content of 1.5 percent or less, and these are all coals which
are naturally low in sulfur.
2. The percentage of reduction of the sulfur with many Illinois
coals is relatively high, even with a moderate quantity of reject. The maxi-
mum reduction of sulfur in cleaned coal reported in this study with 80 per-
cent recovery was 65 percent, and the average reduction was 36 percent.
3. A sulfur reduction of 1.5 or more percentage figures (such as
3.5 to 2.0 percent) was obtained with several samples.
4. The data obtained from washability tests made with 10-pound
samples riffled from larger samples of 3/8-inch x 28-rmesh coal were quite
similar to the data obtained with 100-pound samples.
5. A few comparisons were made between washability tests of diamond -
drill cores from exploratory drilling and those of large column samples obtained
in a mine from a face near the drill-hole site. These tests, with 3/8-inch x
28-mesh coal, gave similar washability data on the two types of samples.
6. The 1.60 specific gravity sink material did not exhibit consis-
tent differences in grindability or in ash fusion temperatures from those of
the column samples.
-------
- 18 -
APPENDIX
TABLE A - FLOAT-AND-SINK DATA FDR COLUMN SAMPLES
SAMPLE 1
FLOAT FRACTION
TOT.S PVR.S
1.275
1.300
1.320
1.400
1.600
CALC. WHCLE CCAL
ANAL. WHOLE CCAL
SP.GR»V.
1.260
1.280
1.300
1.400
1.600
CALC. WhQLF CCAL
ANAL. WHOLE CCAL
SP.GRAV.
.285
.300
.310
.400
.600
CALC. WHOLE CCAL
ANAL. WHOLF CTAL
SP.GRAV.
1.2SS
1.305
1.335
1.400
1.600
CALC. WHOLE CCAL
ANAL. HHOLE CCAL
72.0
50.7
68.2
87.0
93.7
100.0
100.0
CUN.WT.
30.4
44.0
57.4
80.1
d6.3
100.0
100.0
CUM.^I.
25.4
43.4
61.0
76.3
87.1
100.0
100.0
CUM.WT.
25.8
46.4
51.4
71.5
78.6
100.0
100.0
3.5
3.5
4.1
5.7
6.8
1.3
10.0
ASH
2.1
2.3
2.9
4.7
5.6
U.O
12.0
ASH
7.4
3.3
4.3
5.8
7.9
14.3
16.5
ASH
2.9
4.0
4.8
5.9
7.2
20.5
20.3
0.90
0.81
0.80
0.80
0.81
0.89
O.B4
FLflAT FRACTION
TOT.S
2.44
2.48
2.56
2.R5
2.16
4.43
4.33
FLOAT FRACTION
TOF.S
2.01
2.08
2.17
2.27
2.40
3.68
3.90
FLOAT FRACTION
TOT.S
2.13
2.22
2.29
2.45
2.66
5.69
5.64
0.32
0.24
0.23
0.23
0.74
0.34
0.28
PVR.S
0.46
0.50
0.57
o.ne
1.00
2.61
2.34
PVR.S
0.35
0.41
0.52
0.65
0.87.
2.23
2.61
PVR.S
0.41
0.52
0.62
0.82
1.06
4.21
4.15
ORG.S
0.57
0.57
0.57
0.57
0.56
0.55
0.56
ORC. S
1.95
1.14
1.94
1.91
1.10
1.72
1.10
.65
.66
.64
.60
.56
.41
.26
SAMPLE 4
ORG.S
1.71
1.68
1.65
1.61
1.5S
1.37
1.45
CUM.WT.
78.0
49.3
31.8
13.0
6.3
CUH.WT.
61.6
56.0
42.6
19.1
13.7
74.6
56.6
39.0
23.7
12.1
74.2
53.6
40.6
28. 5
21.4
ASH
11.6
16.3
22.1
37.5
54.8
ASH
17.8
21.4
26.7
48.3
59.7
ASH
Id.3
22.7
21.9
41.7
57.3
ASH
26.6
34.7
43.3
56.9
69.3
SINK FRACTION
TOT.S PVR.S
0.89
0.97
i.oa
1.50
2.11
0.34
0.44
0.58
1.06
1.73
SINK FRACTION
TOT.S PVR.S
5.30
5.97
6.95
11.14
13.68
3.56
4.27
5.36
9.98
12.76
SINK FRACTION
TOT.S PVR.S
4.24
4.90
6.03
8.21
12.79
2.87
3.63
4.92
7.3?
11.76
SINK FRACTION
rnr.s PVR.S
6.93
8.70
10.66
13.81
16.82
5.64
7.55
9.65
12.99
16.15
DRG.S
0.54
0.53
0.50
0.44
0.37
ORG.S
1.62
1.55
1.42
0.91
0.62
ORG.S
1.33
1.21
1.04
0.80
0.40
ORG.S
1.26
l.U
0.97
0.77
0.61
SAMPLE S
SP.GRAV.
1.270
1.305
1.330
1.400
1.600
CALC. WHOLE CCAL 100.0
ANAL. MHOLE CCAL 100.0
FLOAT FRACTION
TOT.S PVR.S
17.6
38.1
52.4
76.3
90.0
00.0
00.0
3.6
4.1
4.9
6.7
8.7
13.3
13.0
3.18
3.22
3.28
3.42
3.67
5.20
5.10
0.43
0.47
0.52
0.69
1.01
2.68
2.24
2.68
2.67
2.68
2.65
2.58
2.41
2.82
CUM.WT.
82.4
61.9
47.6
23.7
10.0
15.
18.
22.
34.
54.
SINK FRACTION
TOT.S PVR.S
5.64
6.42
7.32
10.14
18.99
3.16
4.04
5.06
9.07
17.71
ORG.S
2.35
2.25
2.11
1.62
0.86
FLOAT FRACTION
TOT.S PVR.S
CALC
ANAL
1.290
1.325
1.400
1.600
. HHOLE
. WHOLE
COAL
CCAL
35
5>
T>
91
100
100
.5
.6
.5
.9
.0
.0
4.0
4.9
6.8
8.6
12.4
13.0
3.
3.
3.
3.
4.
5.
35
32
41
64
86
10
0.
0.
0.
1.
2.
2.
54
»7
75
03
13
24
2.
2.
2.
2.
2.
2.
78
71
63
58
48
82
64.5
46.4
20.5
S.I
ASH
17.0
21.0
14.0
SS.5
SINK FRACTION
TOT.S PVR.S
5.69
6.64
10.47
18.61
3.32
».3T
8.10
17.16
ORC.S
2.31
2.21
1.87
1.29
-------
- 19 -
SAMPLE 6
FLOAT FRACTION
SP.GRAV.
ORG.S
.250
.290
.330
.400
.600
CALC. WHOLE CCAL
ANAL. WHOLE CCAL
22.5
49.0
66.5
75.6
83.9
100.0
100.0
2.4
3.0
3.8
4.7
6.3
16.7
18.3
2.45
2.51
2.62
2.73
2.86
4.04
4.46
0.39 2.03
0.50 1.98
0.64
0.78
0.96
2.3)
2.51
.94
.91
.85
.65
.89
CUN.WT.
77.5
51.0
33.5
24.4
16.t
ASH
20.9
29.S
42.3
54.0
70.9
SINK FRACTION
TOT.S PYR.S
4.51
5.51
6.87
8.13
10.70
2.09
4.08
5.67
7.12
9.43
ORC.S
1.54
1.34
I.OB
0.86
0.60
SAMPLE 6S
FLOAT FRACTION
TOT.S PTR.S
1
1
1
1
CALC.
ANAL.
.255
.300
.400
.600
WHOLE
WHOLE
CCAL
CCAL
27.0
47.2
76.9
84.6
100.0
100.0
3.4
3.0
4.7
6.4
16.3
18.3
2
2
2
2
4
4
.55
.51
.72
.85
.17
.46
0.5B
0.52
0.77
0.94
2.46
2.51
1.93
1.96
1.90
1.85
1.6)
1.89
73.0
52.8
23.1
15.4
SINK FRACTION
ASH TOT.S PVR.S
21.0
28.1
54.7
70.8
4.77
5.65
8.97
11.41
3.15
4.19
8.06
10.80
ORG.S
I.S2
1.34
0.76
0.43
FLOAT FRACTION
1.750
1.285
1.335
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE CCAL 100.0
21.2
43.3
65.9
72.5
78.9
00.0
00.0
2.8
3.1
4.2
4.8
6.2
20.2
22.0
7.41
7.43
2.61
2.72
2.90
4.43
4.67
0.48
0.53
0.72
0.83
1.01
2.85
2.90
1.91
1.08
1.86
1.86
1.84
1.50
1.71
78.8
56.7
34.1
27.5
21.1
ASH
24.9
33.4
51.2
60.9
72.9
SINK FRACTION
TOT.S PYR.S
4.97
5.95
7.94
8.92
10.14
3.49
4.63
6.99
ft. 19
9.74
ORG.S
1.39
1.71
0.80
0.56
0.2?
SAMPLE 7S
1.260
1.285
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE COAL
CUM.WT.
30.3
50.7
77.6
87.6
100.0
100.0
ASH
2.3
3.0
4.8
5.9
17.5
22.0
FLOAT FRACTION
TOT.S PYR.S
2.37
2.47
2.78
2.9)
4.18
4.67
0.46
0.56
0.86
1.0?
2.55
2.90
ORC.S
.90
.87
.85
.56
.71
69.7
49.3
22.4
17.4
ASH
24.1
32.5
61.6
72.7
SINK FRACTION
TOT.S PYR.S
4.97
5.94
9.04
10.13
3.45
4.58
8.37
9.78
ORG.S
1.41
1.22
0.48
0.15
SAMPLE 8
SP.CRAV.
CUN.WT.
FLOAT FRACTION
TOT.S PYR.S
ORC.S
1.260
1.295
1.320
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE COAL
25.3
45. 6
62.2
84.0
94.4
100.0
100.0
6.1
6.2
6.6
7.6
8.7
11.3
10.8
2.85
2.87
2.94
3.19
3.64
4.40
4.61
0.59
0.61
0.68
0.94
1.38
2.23
2.23
2.22
2.22
2.22
2.19
2.17
2.08
2.26
CUM.WT.
74.7
54.4
37.8
16.0
5.6
SINK FRACTION
ASH TOT.S PYR.S
13.1
19.7
19.1
31.0
55.2
4.93
5.69
6.81
10.75
17.35
2.78
1.58
4.77
8.96
16.50
ORG.S
2.03
1.96
1.86
1.51
0.52
SAMPLE SS
FLOAT FRACTION
TOT.S PYR.S
1
1
1
1
CALC.
ANAL.
.265
.105
.400
.600
WHOLE
WHOLE
COAL
COAL
24
46
87
94
100
100
.2
.8
.5
.2
.0
.0
5.6
5
T
8
10
10
.8
;i
.1
.7
.8
3,03
3.
1.
3.
4.
4.
00
15
68
48
61
0.
0.
1.
1.
2.
2.
72
69
06
17
21
21
2.27
2.27
2.21
2.21
2.15
2.26
CUM. NT.
12. 5
5.8
ASH
12.3
15.0
14.3
52.4
SINK FRACTION
TOT.S PYR.S
4.94
5. 78
12.40
17.49
2.T2
1.59
10.46
16.17
ORG.S
2.11
2.05
1.62
0.94
-------
- 20 -
SAMPLE 9
FLOAT FRACTION
TOT.S PYR.S
1.285
1.310
1.335
1.400
1.600
CALC. WHOLE CCAL
ANAL. MHOLE COAL
14.5
33.7
52.0
14.2
86.4
100.0
100.0
2.7
3.4
4.4
6.1
7.8
11.6
12.2
1.6}
1.82
2.07
2.58
3.12
5.17
5.41
0.59
0.73
0.95
1.40
1.94
4.08
4.17
1.03
1.08
1.11
1.15
1.16
1.06
1.19
85.5
66.1
48.0
25.8
13.6
ASH
13.1
15.7
19.3
27.3
35.6
SINK FRACTION
TOT.S PVR.S
5.77
6.88
8.54
12.64
18.22
4.67
5.78
7.48
11.79
IT.70
ORG.S
1.07
1.05
1.02
0.80
0.48
SAMPLE 9S
FLOAT FRACTION
TOT.S PYR.S
1.310
1.335
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHGLE COAL
38.0
57.4
76.7
90.7
100.0
100.0
4.1
5.0
6.4
B.3
11.6
12.2
1.86
2.08
2.30
2.95
4.85
5.41
0.88
1.06
1.50
2.09
4.03
4.17
0.97
1.00
1.03
1.05
0.97
1.19
62.0
42.6
23.3
9.3
SINK FRACTION
ASH TOT.S PVR.S
16.2
20.5
28.6
44.1
6.69
8.59
13.26
23.38
5.96
8.03
12.35
72.97
ORC.S
0.97
0.93
0.77
0.16
SAMPLE 10
FLOAT FRACTION
SP.CRAV.
1.290
1.310
1.330
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHCLE COAL
CUH.WT.
18.7
41.6
65.1
87.0
95.0
100.0
100.0
ASH
2.9
3.6
4.6
5.9
6.8
8.9
8.9
TOT.S
0.80
0.83
0.87
0.94
1.03
2.67
2.68
PVR.!
0.15
0. 19
0.24
0.33
0.42
2.07
2. no
ORG.S
0.64
0.62
0.62
0.59
0.58
0.57
0.66
BI.1
58.4
34.9
13.0
5.0
SINK FRACTION
ASH TOT.S PVR.S
10.3
12.7
17.0
29.3
49.4
3.10
3.99
6.04
14.27
13.97
2.51
3.41
5.50
13.76
33.43
ORG.S
0.55
0.53
0.48
0.41
0.37
SAMPLE 10S
FLOAT FRACTION
TOT.S PVR.S
1
1
1
1
CALC.
ANAL.
.30C
.325
.400
.600
WHOLE
WHOLE
CCAL
COAL
36
67
87
95
100
100
.8
.2
.9
.2
.0
.0
3.
4.
5.
6.
8.
a.
3
6
9
7
7
9
0.84
0.89
0.96
1.03
2.56
2.68
0.
0.
0.
0.
1.
2.
20
26
34
43
96
00
0
0
0
0
0
0
.63
.62
.60
.59
.58
.66
CUH.WT.
63.2
32.8
ASH
11.9
17.2
29.4
48.5
SINK FRACTION
TOT.S PYR.S
14.22
32.90
2.99
5.44
13.70
32.31
URG.S
0.55
0.50'
0.46
0.48
SAMPLE 11
SP.GRAV.
FLOAT FRACTION
TOT.S PVR.S
1.290
1.310
1.330
1.400
1.600
CALC. WHOLE COAL
ANAL. WHOLE COAL
17.7
37.5
56.8
79.0
92.4
100.0
100.0
2.3
3.0
3.8
5.7
7.7
II. 3
11.8
1.53
1.64
1.73
1.85
2.07
3.06
3.46
0.30
0.38
0.46
0.60
0.82
1.85
2.07
.23
.26
.26
.25
.24
.19
.17
82.3
62.5
43.7
21.0
7.6
SINK FRACTION
ASH TOT.S PVR.S
13.2
16.3
21.1
12.5
54.6
3.39
3.91
4.81
7.60
15.07
2.19
2.73
3.69
6.57
14.39
ORG.S
1.16
1.15
1.09
0.97
0.55
SAMPLE IIS
SP.GRAV.
FLOAT FRACTION
TOT.S PYR.S
ORG.S
1
1
1
1
CALC.
ANAL.
.293
.320
.400
.600
WHOLE
WHOLE
COAL
COAL
26.7
46.3
81.9
92. »
100.0
100.0
2
3
5
7
11
11
.4
.3
.8
.5
.1
.a
1.56
1.71
1.93
2.10
3.01
3.46
0.
0.
0.
0.
1.
2.
35
44
65
82
82
07
.20
.26
.27
.26
.19
.17
CUK.WT.
73.3
53.7
16. 1
7.5
ASH
14.3
17.9
35.1
55.2
SINK FRACTION
TOT.S PVR.S
3.59
4.20
8.10
14.67
2.36
3.02
7.14
14.19
ORG.S
1.19
1.14
0.85
0.29
-------
- 21 -
SAMPLE 12
FLOAT FRACTION
SP
1
1
1
CALC.
ANAL.
.GRAV.
.250
.270
.285
.400
.600
WHOLE CCAL
WHCLE CCAL
CUM.
22.
42.
56.
79.
84.
100.
100.
WT.
a
2
3
0
0
0
0
ASH
2
2
3
4
5
16
19
.3
.5
.0
.5
.6
.5
.2
TOT.S
2.38
2.40
2.47
2.66
2.71
3.63
3.7?
PVR.!
0.
0.
0.
0.
0.
1.
1.
42
43
50
69
76
96
89
ORG.S
.93
• .93
.93
.90
.87
.58
.79
77.2
57.8
41.7
21.0
16.0
SINK FRACTION
ASH TOT.S PYR.S
20.7
26.7
34.0
61.6
73.7
4.00
4.53
5.13
7.29
8.48
2.42
3.07
3.84
6.75
8.26
ORG.S
1.47
1.31
1.12
0.34
0.01
SAMPLE 12S
1.260
1.290
1.400
1.600
CALC. WHOLE CCAL
ANAL. UHCLE CCAL 100.0
FLOAT FRACTION
TOT.S PYR.S
31.1
54.8
79.3
84.5
00.0
00.0
2.3
3.1
4.7
5.8
16.3
19.2
2.40
2.48
2.66
2.70
3.36
3.72
0.39
0.50
0.68
0.75
1.61
1.B9
.99
.95
.91
.88
.65
.79
68.9
45.2
20.7
15.5
SINK FRACTION
ASH TOT.S PYR.S
22.7
32.4
60.9
73.9
3.79
4.43
6.04
6.95
2. IT
2.97
5.18
6.33
ORC.S
1.50
1.29
0.65
0.41
SAMPLE 13
FLOAT FRACTION
SP
1
1
1
1
CALC.
ANAL.
.GRAV.
.260
.260
.305
.400
.600
WHOLE CCAL
WHOLE CCAL
CUH.WT.
25.4
46.3
63.6
89.3
95.2
100.0
100.0
ASH
3.0
4.0
4.3
6.3
7.3
9.8
10.5
TOT.S
2.73
2.84
2.88
3.19
3.31
4.17
4.58
PYR.:
0.52
0.63
0.67
0.94
1.07
2.00
2.33
2.12
74.6
53.7
36.4
10.7
4.8
ASH
12.1
14.7
19.2
38.4
59.0
SINK FRACTION
TOT.S PVR.S
4.67
5.32
6.44
12.40
21.32
2.50
3.18
4.32
to.ei
20.44
ORG.S
2.09
2.06
2.01
1.49
0.83
FLOAT FRACTION
TOT.S PYR.S
ORG.S
I
1
1
1
CALC.
ANAL.
.270
.300
.400
.600
WHCLF
WHOLE
CCAL
CCAL
33.6
60.6
90..I
95.5
100.0
100.0
3
4
6
7
9
10
.2
.2
.3
.1
.4
.5
2
2
3
3
4
4
.64
.77
.04
.18
.02
.58
0
0
0
1
2
2
.55
.67
.97
.14
.05
.33
2.06
2.06
1.99
1.98
1.91
2.21
CUM.WT.
66.4
19.4
9.9
4.5
ASH
12.6
17.5
38.2
58.3
SINK FRACTION
TOT.S PVR.S
4.72
5.95
12.96
21.98
2.80
4.17
11.80
21.35
ORG.S
1.83
1.68
1.14
0.34
SAMPLE 14
FLOAT FRACTION
SP.GRAV.
.290
.310
.340
.400
.600
CAIC. WHOLE COAL
ANAL. WHOLE COAL
CUM.
WT.
18.6
42.3
61.4
74.9
85.9
100.
100.
0
0
ASH
2
3
4
5
6
14
14
.6
.3
.1
.2
.9
.4
.4
TOT.S
1.99
2.00
2.06
2.15
2.27
3.69
4.00
PVR.
0.38
0.46
0.56
0.66
0.81
2.
2.
40
63
.61
.54
.51
.49
.46
.26
.36
81.4
57.7
38.6
25.1
14.1
SINK FRACTION
ASH TOT.S PYR.S
17.1
22.6
30.8
42.0
60.3
4.08
4.93
6.28
8.28
12.36
2.8T
J.83
5.34
7.59
12.13
ORG.S
1.18
1.06
0.88
0.60
0.09
SAMPLE US
FLOAT FRACTION
TOT.S PYR.S
ORG.S
CALC
ANAL
1.300
1.330
1.400
1.600
. WHOLE
. UHOLE
COAL
COAL
35.
63.
78.
87.
too.
100.
4
8
2
0
0
0
3
4
5
7
14
14
.2
.3
.5
.1
.2
.4
1
2
2
2
3
4
.93
.02
.12
.24
.66
.00
0.43
0.56
0.68
0.81
2.33
2.63
.50
.46
.44
.41
.29
.36
CUN.HT.
64.6
36.2
21.8
13.0
ASH
20.3
31.8
43.6
62.0
SINK FRACTION
TOT.S PYR.S
4.61
6.55
9.17
11.19
3.IT
5.46
8.27
12.90
ORG.S
1.18
1.01
O.T8
0.51
-------
- 22 -
SAMPLE 15
FLOAT FRACTION
1.100
1.320
1.140
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHCLE CCAL
72.6
40.3
55.7
69.5
85.8
100.0
100.0
1.5
2.3
1.2
4.7
7.7
15.0
16.5
1.46
1.46
1.97
2.14
2.50
3.59
4.15
0.38
0.48
0.57
0.73
1.09
2.32
2.91
1.59
1.48
1.40
1.40
1.40
1.22
1.32
77.4
59.7
46.3
10.5
14.2
SINK FRACTION
ASH TOT.S PYR.S
19.0
23.6
28.8
38.5
59.4
4.06
4.68
5.45
6.89
10.16
2.89
3.57
4.16
5.96
9.79
ORG.S
1.12
1.05
1.02
0.83
0.19
SP.GRAV.
FLOAT FRACTION
TOT.S PYR.S
1.320
1.340
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE CCAL
42.9
58.6
75.8
86.1
100.0
100.0
1.4
4.4
6.1
7.8
14.9
16.5
2.06
2.15
2.28
2.5?
3.73
4.15
0.46
0.57
0.75
1.01
2.39
2.81
1.59
1.57
1.52
1.49
1.30
1.32
57.1
41.4
24.2
13.9
SINK FRACTION
ASH TOT.S PYR.S
23.6
29.8
42.4
58.7
4.99
5.97
fl.29
11.16
3.83
4.95
7.51
10.80
ORG.S
1.09
0.93
0.61
0.16
SAMPLE 16
FLOAT FRACTION
TOT.S PYR.S
1.310
1.335
1.365
1.400
1.600
CALC. WHCLE CCAL
ANAL. WHOLE CCAL
24.2
49.8
73.2
83.1
94.6
ino.o
100.0
3.9
5.1
6.3
7.0
B.4
11.0
11.5
1.75
1.86
1.96
2.04
2.36
3.20
3.42
0.70
0.82
0.96
1.06
1.39
2.26
2.45
1.05
1.03
1.00
0.98
0.96
0.93
0.94
75.8
50.3
26.8
16.9
5.4
ASH
11.2
16.8
23.6
30.2
56.1
SINK FRACTION
TOT.S PYR.S
3.66
4.5J
6.59
8.89
17.97
2.76
3.68
5.79
8.14
17.47
ORG.S
0.89
0.83
0.75
0.70
0.40
SAMPLE 16S
FLOAT FRACTION
TOT.S PYR.S
1
1
1
1
CALC.
ANAL.
.320
.140
.400
.600
WHOLE
WHOLE
COAL
COAL
11.4
51.9
85.1
94.2
100.0
100.0
4.
5.
7.
a.
10.
11.
6
2
1
2
9
5
1.7B
1.82
1.97
2.19
1.01
3.42
0.75
0.82
1.06
1.30
2.15
2.45
1.
0.
0.
0.
0.
0.
02
99
89
87
83
94
66.6
48.1
14.9
5.8
SINK FRACTION
ASH TOT.S PYR.S
14.0
17.0
31.5
54.0
3.6)
4.30
8.98
16.39
2.86
3.59
8.39
16.06
ORG.S
0.73
0.65
0.46
O.M
FLOAT FRACTION
SP.GRAV.
1.225
1.270
1.300
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE COAL
24.2
39.4
58.6
72.4
80.0
100.0
100.0
2.3
3.2
4.1
5.5
7.0
19.8
21.3
2.49
2.62
2.71
2.85
2.94
1.82
3.96
0.23
0.35
0.45
0.57
0.68
1.76
2.08
2.20
2.17
2.13
2.10
2.07
1.80
1.78
75.8
60.6
41.4
2T.6
20.0
ASH
25.4
10.5
41.9
57.1
70.8
SINK FRACTION
TOT.S PYR.S
4.25
4.61
5.39
6.37
7.35
2.25
2.68
3.62
4.89
6.11
ORG.S
1.67
1.55
1.33
0.99
0.69
SAMPLE 17S
SP.GRAV.
FLOAT FRACTION
TOT.S PYR.S
1
1
1
1
CALC.
ANAL.
.270
.305
.400
.600
WHOLE
WHCLE
COAL
COAL
39
56
72
78
100
100
.7
.6
.6
.8
.0
.0
3.
4.
5.
7.
21.
21.
9
4
9
3
2
3
2
2
2
2
4
3
.76
.77
.92
.98
.00
.96
0.
0.
0.
0.
2.
2.
60
64
80
90
29
08
2.12
2.08
2.07
2.03
1.60
1.76
CUK.KT.
60.3
43.4
27.4
21.2
ASH
32.6
43.0
61.8
73.0
SINK FRACTION
TOT.S PYR.S
4.81
5.60
6.81
7.77
3.41
4.45
6.25
7.49
ORG.S
1.26
0.9T
0.3T
0.02
-------
- 23 -
SAMPLE 16
FLOAT FRACTION
TOT.S
PYR.S
ORG.S
1.290
1.310
1.120
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE CCAL
14. B
32.3
49.1
86. 7
95. 5
100.0
100.0
2.7
3.5
3.8
4.6
5.4
7.2
6.8
0.69
0.73 •
0.71
0.69
0.74
1.55
1.49
0.14
0.17
0.16
0.18
0.23
1.05
0.93
0.52
0.54
0.53
0.50
0.49
0.47
0.54
CUM.XT.
85.2
6T.7
JO.9
11.5
4.5
ASH
7.1
8.9
10. 4
24.1
45.5
SINK FRACTION
TOT.S PYR.S
l.TO
1.94
2.3T
7.19
18.80
1.21
1.48
1.92
6.TT
18.42
ORG.S
0.46
0.44
0.42
0.)]
0.20
SAMPLE 18S
FLOAT FRACTION
TC1T.S PYR.S
1
1
1
1
CALC.
ANAL.
.300
.315
.400
.600
WHOLE
HHGLE
CCAL
CCAL
27
42
99
95
100
100
.8
.9
.6
.8
.0
.0
3
3
4
5
7
6
.2
.6
.8
.3
.0
.8
0
0
n
0
1
1
.71
.71
.68
. M
.42
.49
0.12
0.12
0.15
0.18
0.91
0.93
0.
0.
0.
0.
0.
0.
5fl
58
52
50
48
54
72.2
57.1
10.4
4.2
SINK FRACTION
ASH TOT.S PYR.S
8.5
9.6
26.7
47.4
1.69
1.95
7.73
17.61
1.21
1.49
7.39
17.37
ORC.S
0.45
0.41
0.21
0.02
SAMPLE 19
FLOAT FRACTION
1.290
1.310
1.330
1.400
1.600
CALC. WHOLE CCAL 100.0
ANAL. WHOLE CCAL
20.4
44.0
65.4
88.0
96.0
00.0
00.0
2.6
3.3
3.8
4.8
6.0
7.8
7.8
0.57
0.54
0.54
0.57
0.66
1.28
1.36
0.04
0.03
0.03
0.06
0.15
0.75
0.76
0.51
0.49
0.48
0.47
0.47
0.47
0.52
79.6
56.0
34.6
12.0
4.0
ASH
9.1
11.3
15.3
29.5
50.2
SINK FRACTION
TOT.S PYR.S
1.46
1.86
2.68
6.52
16.19
0.93
1.31
2.09
5.76
15.07
ORG.S
0.45
0.45
0.43
0.42
0.43
SAMPLE 19S
SP.GRAV.
FLOAT FRACTION
TOT.S PYR.S
CALC
ANAL
1.290
1.310
1.400
1.600
. WHOLE
. WHOLE
CCAL
COAL
24
50
90
95
100
100
.2
.3
.4
.6
.0
.0
3
3
5
5
7
7
.0
.6
.0
.8
.7
.8
0.64
0.59
0.58
0.61
1.31
1.36
0.
0.
0.
0.
0.
0.
14
09
08
11
80
76
0.47
0.46
0.46
0.46
0.44
0.52
75.8
49.7
9.6
4.4
SINK FRACTION
ASH TOT.S PYR.S
9.2
11.9
33.2
49.7
1.52
2.04
8.17
16.40
1.01
1.52
7.57
15.78
ORC.S
0.43
0.41
0.27
0.06
SAMPLE 20
FLOAT FRACTION
TOT.S PYR.S
CALC
ANAL
1.275
1.295
1.315
1.400
1.600
. WHOLE
. WHOLE
CCAL
CCAL
IB
30
49
B3
95
100
100
.2
.9
.4
.4
.2
.0
.0
3
4
5
7
9
11
11
.2
.0
.2
.8
.3
.,
.8
2.04
2.10
2.17
2.54
3.05
3.79
4.00
0.35
0.44
0.58
0.98
1.51
2.27
2.46
.69
.66
.59
.56
.53
.52
.53
81.8
69.1
50.6
16.6
4.8
ASH
12.8
14.2
16.9
27.6
47.4
SINK FRACTION
TOT.S PYR.S
4.18
4.55
5.38
10.10
18.62
2.69
3.08
3.91
9.73
17.26
.49
.46
.46
.35
.33
SAMPLE 20S
ASH
FLOAT FRACTION
TOT.S PVR.S
1
1
1
1
CALC.
ANAL.
.300
.315
.400
.600
WHOLE
WHOLE
COAL
COAL
31
49
85
95
100
100
.4
.3
.5
.1
.0
.0
4.
5.
8.
9.
11.
11.
1
3
1
3
1
8
2
2
2
3
3
4
.17
.JO
.67
.01
.81
.00
0
0
1
1
2
2
.52
.63
.06
.51
.38
.46
.65
.66
.59
.47
.40
.53
68.6
50.7
14.5
4.9
ASH
14.3
16.8
28.7
46.8
SINK FRACTION
TOT.S PYR.S
4.56
5.29
10.57
19.46
3.24
4.08
10.19
19.31
ORC.S
1.29
1.15
0.28
0.03
-------
- 24 -
SAMPLE 21
1.260
1.300
• 1.325
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHCLF Cr«L 100.0
FLOAT FRACTION
ASH TOT.S PYR.S
35.1
50.5
66.7
80.7
89.6
.00.0
00.0
4.0
4.4
5.2
6.1
7.5
12.5
11. B
3.21
3.16
3.21
3.3?
3.57
S.51
5.48
0.49
0.52
0.59
0.75
1.02
3.16
2.54
2.71
2.64
2.61
2.57
2.5*
2.34
2.9?
64.9
49.5
33.3
19.3
10.4
SINK FRACTION
ASH TOT.S PYR.S
17.1
20.7
27.1
38.4
55.1
6.76
7.91
10.14
14.67
22.24
4.60
5. 85
B.30
13.25
21.55
oac.s
2.14
2.04
i.ai
1.38
0.63
SAMPLE 21S
FLOAT FRACTION
TOT.S PVR.S
CALC
ANAL
1.775
1.100
1.400
1.600
. WHCLE
. WHOLE
CCAL
CCAL
27.9
45.5
83.3
91.4
100.0
100.0
3.8
4.2
6.3
7.5
11.5
11.8
3.41
3.42
3.60
3.85
5.20
5.48
0
0
0
1
2
7
.48
.50
.74
.04
.56
.54
2.93
2.91
2.8.5
2.80
2.62
2.9?
72.1
54.5
16.7
8.6
ASM
14.5
17.6
37.2
53.6
SINK FRACTION
TOT.S PYR.S
5.89
6.69
13.20
19.57
3.37
4.28
11.65
IB.69
ORG.S
2.51
2.38
1.48
0.78
SAMPLE 22
FLOAT FRACTION
SP.GRAV.
1.240
1.270
1.295
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE CCAL
CUM.JT.
6.9
16.2
21. a
76.6
89.5
100.0
100.0
ASH
2.9
2.7
2.8
6.0
8.1
13.2
13.3
TOT.S
2.30
2.33
2.40
2.69
3.05
4.70
4.73
PVR.!
0.67
0.65
0.65
1.09
1.28
3.09
2.98
ORG.S
1.63
1.66
1.74
1.79
1.76
1.56
1.72
93.1
83. 8
72.2
23.4
10.5
SINK FRACTION
ASH TOT.S PYR.S
14.0
15.2
17.2
36.7
56.7
4.88
5.16
5.58
10.62
18.74
3.27
3.57
4.03
9.65
18.59
ORG.S
1.56
1.56
1.52
0.90
0.04
SAMPLE 22S
FLOAT FRACTION
SP.GRAV.
1.250
1.275
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE COAL
CUM.JT.
29.7.
48.0
85.2
90.5
100. 0
100.0
ASH
3.9
4.4
7.6
6.5
13.4
13.3
TOT.S
2.70
2.83
3.11
3.20
4.77
4.73
PYR.S t
0.64
0.94
1.26
1.37
3.10
2.98
1RG.S
.66
.88
.84
.82
.65
.72
70.8
52.0
14.6
9.5
ASH
17.3
21.7
46.9
59.9
SINK FRACTION
TOT.S PVR.S
5.62
6.56
14.32
19.69
4.03
5.09
13.71
19.57
ORG.S
1.56
1.43
0.54
0.02
FLOAT FRACTION
PYR.S
ORG.S
CALC
ANAL
1.265
1.300
1.325
1.400
1.600
. WHOLE
. HHCLE
COAL
CCAL
16.
33.
54.
71.
81.
100.
100.
5
9
9
7
5
0
0
z.
3.
4.
5.
7.
16.
15.
6
1
0
5
2
0
2
2.51
2.56
2.66
2.61
2.99
4.80
4.60
0
0
0
0
1
3
2
.46
.51
.63
.64
.08
.19
.60
2.
2.
2.
1.
1.
1.
1.
05
05
03
97
91
59
78
CUM.NT.
63.5
66.1
45.1
28.3
18.5
18.
22.
30.
42.
54.
SINK FRACTION
TOT.S PYR.S
5.26
5.96
7.42
9.85
12.77
3.73
4.56
6.30
9.14
12.49
ORG.S
1.50
1.35
1.06
0.63
O.IS
SAMPLE 23S
CUM.XT.
FLOAT FRACTION
TOT.S PYR.S
1.295
1.320
1.400
1.600
CALC. WHOLE COAL
ANAL. WHOLE CCAL
37.2
57.7
76.7
86.4
100.0
100.0
4.2
4.8
6.2
8.0
14.6
15.2
2.66
2.71
2.84
3.01
4.54
4.60
0.63
0.70
0.89
1.11
2.77
2.80
2.66
2.41
2.26
2.17
1.97
1.78
62.8
42.1
23.3
13.6
ASH
20.8
28.1
42.1
57.0
SINK FRACTION
TOI.S PYR.S
7.01
10.12
14.21
4.04
5.59
6.96
11.11
ORG.S
l.ST
1.17
1.05
O.T4
-------
- 25 -
SAMPLE 24
SP.GRAV.
1.2SS
1.300
1.315
1.400
1.600
CALC. WHOLE COAL
ANIL. WHOLE COAL
FLO«T FRACTION
CUM.WT. ASH TOT.S PVR.
17.9
32.3
$0.2
84.0
94.6
.2
.1
.5
.7
.3
•100.0 10.)
100.0 11.4
.36 0.44
.36 0.41
.39 0.42
.49 0.50
.54 0.58
.98 1.02
.95 1.06
ORG.S
0.92
0.95
0.97
0.98
0.96
0.95
0.89
82.1
67.7
49.8
16.0
6.0
SINK FRACTION
ASH TOT.S PVR.S
11.9
13.8
17.2
34.5
56.7
2.12
2.78
2.58
4.59
8.89
1.15
1.32
1.63
3.76
8.01
ORG.S
0.96
0.96
0.94
0.82
0.86
SAMPLE 24S.
SP.GRAV.
CUM.WT.
FLOAT FRACTION
TOT.S PVR.S
ORG.S
1.290
1.300
1.400
1.600
CALC. WHOLE COAL
ANAL. WHCLE CCAL
29.4
44.0
81.8
92.0
100.0
100.0
2.3
2.7
5.3
7.1
11.0
11.4
1.21
1.27
1.39
1.44
2.02
1.95-
0.31
0.34
0.47
0.54
1.18
1.06
0.89
0.92
0.91
0.8V
0.84
0.89
7C.6
56.0
18.2
8.0
SINK FRACTION
ASH TOT.S PYR.S
14.7
17.6
36.T
56.8
2.36
2.61
4.87
8.78
1.54
1.83
4.34
8.49
ORG.S
0.82
0.78
O.52
0.26
FLOAT FRACTION
SP.GRAV.
1.275
1.310
1.325
1.400
1.600
CALC. HHOLE CCAL
ANAL. WHOLE CCAl
CUN.MT.
29.5
48.3
62.7
85.8
91.3
100.0
100.0
ASH
5.6
6.4
7.2
9.0
9.8
14.1
15.3
TOT.S
2.19
2.23
2.23
2.24
2.30
3.04
3.08
PVR.!
0.31
0.35
0.36
0.42
0.50
1.29
1.21
ORG.S
1.87
.88
.85
.81
.78
.73
.86
70.5
51.7
37.1
14.?
8.7
SINK FRACTION
ASH TOT.S PYR.S
17.6
21.7
25.5
44.9
Sfl.3
1.39
3.79
4.40
7.87
10.84
1.71
7.18
2.86
6.58
9.62
ORG.S
1.67
1.60
1.53
1.27
1.19
SAMPLE 2SS
SP.GRAV.
1.275
1.310
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE COAL
CUM.NT.
FLOAT FRACTION
TOT.S PYR.S
46.7
55.0
86.6
91.4
100.0
100.0
7.0
7.2
9.2
10.0
14.0
15.3
2.77
2.28
2.29
2.36
3.11
3.08
0.35
0.36
0.43
0.53
1.32
1.21
.9?
.92
.85
.83
.79
.86
53.3
45.0
13.4
' 8.6
SINK FRACTION
ASH TOT.S PYR.S
70.2
22.5
45.5
56.9
3.B5
4.13
8.46
11.15
7.17
2.49
7.06
9.78
ORG.S
1.67
1.63
1.38
1.35
SAMPLE 26
ASH
FLOAT FRACTION
TOT.S PYR.S
ORG.S
1.290
1.320
1.360
1.400
1.600
CALC. HHOLE CCAL
ANAL. WHOLE COAL
11.3
27.1
49.6
64.5
83.5
100.0
100.0
6.9
7.7
9.3
10.5
13.2
19.7
20.9
3.16
3.26
3.49
3.78
4.15
4.02
3.72
1.37
1.44
1.69
1.98
2.39
2.42
2.51
.77
.80
.76
.76
.69
.52
.14
CUM.NT.
88.7
72.9
50.4
35.5
16.5
ASH
21.4
24.2
30.0
36.6
52.6
SINK FRACTION
TOT.S PVR.S
4.13
4.30
4.53
4.45
3.36
2.55
7. 78
3.13
3.21
2.54
ORG.S
1.49
1.42
1.29
1.09
0.65
SAMPLE 26S
SP.GRAV.
CUM.WT.
ASH
FLOAT FRACTION
TOT.S PVR.S
ORG.S
1
1
1
I
CALC.
ANAL.
.240
.320
.400
.600
WHOLE
WHOLE
COAL
COAL
12
20
63
82
100
100
.2
.1
.8
.«
.0
.0
6.
7.
10.
12.
19.
20.
1
3
1
8
5
9
3.
3.
3.
4.
3.
3.
06
18
63
00
88
72
1.35
1.47
1.99
2.40
2.45
2.51
.69
.68
.60
.55
.36
.14
CUN.UT.
87.8
71.9
36.2
17.2
SINK FRACTION
ASH TOT.S PVR.S
21.3
24.2
36.0
51.5
3.99
4.15
4.30
3.29
2.60
2.83
3.26
2.71
ORG.S
1.31
1.23
0.93
0.41
-------
- 26 -
SAMPLE 27
FLOAT FRACTION
ASH TOT.S PYR.S
.276
.110
.348
.400
.600
CALC. WHOLE CCAL
ANAL. WHOL6 COAL
26.4
49.6
69.0
80.9
90. 3
100.0
100.0
3.?
4.5
5.5
6.8
8.4 '
12.8
13.4
3.92
3.67
3.90
4.01
4.33
5.95
6.03
0.38
0.49
0.65
0.84
1.23
3.07
2.7?
3.37
3.22
).09
3.01
2.93
2.72
3.09
73.6
50.4
31.0
19.1
9.Z
SINK FRACTION
ASH TOT.S PYR.S
16.3
21.1
29.2
38.6
57.1
6.68
8.00
10.52
14.18
21.94
4.03
5.61
8.45
12.51
21.21
ORC.S
2.48
2.22
1.68
1.46
0.59
SAMPLE 27S
1.280
1.315
1.400
1.600
CALC. WI-CLE CCAl 100.0
ANAL. WHOLE CCAL 100.0
FLOAT FRACTION
ASH TOT.S PVR.S
34.5
56.0
82.0
92.0
00.0
00.0
4.0
4.9
7.1
8.7
12.4
13.4
3.93
3.85
3.99
4.31
5.53
6.03
0.44
0.53
0.63
1.23
2.68
2.72
3.35
3.23
3.08
2.99
7.75
3.09
65.5
44.0
18.0
8.0
SINK FRACTION
ASH TOT.S PYR.S
16.a
21.9
36.4
55.5
6.37
7.66
12.53
19.56
3.86
5.42
11.10
19. S1)
ORG.S
2.44
2.15
1.26
0.03
-------
- 27. -
TABLE B - FLOAT-AND-SINK DATA FOR CORE SAMPLES
FLOAT FRACTION
ASH TOT.S PVR.S
1.280
1.310
1.330
1.400
1.600
CALC. HHOLE COAL
ANAL. WHOLE CCAL
SP.CRAV.
1.280
1.310
1.330
1.400
1.600
CALC. WHOLE CCAL
ANAL. WHOLE CCAL
SP.CRAV.
1.275
1.300
1.320
1.400
1.600
CALC. UHOLE CCAL
ANAL. WHOLE COAL
SP.CRAV.
1.280
1.310
1.330
1.400
1.600
CALC. WHOLE COAL
ANAL. WHOLE CCAL
16.1
41.0
60.3
82.1
92.6
100.0
100.0
CUH.WT.
23.1
45.0
62.7
78.9
90.8
100.0
100.0
CUH.WT.
20.1
41.1
63.4
83.3
92.3
100.0
100.0
CUH.WT.
20.4
42.0
60.3
77.1
91.0
100.0
100.0
2.5
4.0
5.0
6.8
8.3
11.8
12.4
ASH
3.1
4.2
5.3
6.5
a. 3
12.8
13.4
ASH
3.2
4.1
5.1
6.7
8.1
11.9
13.1
ASH
3.3
4.3
5.5
6.8
8.8
13.1
12.9
3.37
3.42
3.48
3.66
3.92
4.68
4.60
FLOAT FRACTION
TOT.S
3.35
3.45
3.56
3.75
4.12
5.66
5.56
FLOAT FRACTION
TOT.S
3.43
3.42
3.43
3.56
3.77
4.74
5.24
FLOAT FRACTION
TOT.S
3.40
3.44
3.54
3.71
4.23
5.51
5.54
0.38
0.49
0.58
0.78
1.05
1.92
1.74
PVR.S
0.35
0.44
0.55
0.77
1. 17
2.89
2.72
PVR.S
0.39
0.44
0.49
0.66
0.90
2.00
2.27
PVR.S
0.38
0.46
0.57
0.78
1.27
2.68
2.54
ORG.S
2.96
2.89
2.85
2.79
2.73
2.63
2.69
SAMPLE 6C
ORC.S
2.97
2.97
2.95
2.90
2.83
2.63
2.69
SAMPLE 7C
ORC.S
2.99
2.92
2.87
2.80
2.75
2.61
2.77
SAMPLE 8C
ORG.S
2.97
2.91
2.B9
2.61
2.75
2.60
2.76
83.9
59.0
39.7
17.9
7.4
76.9
55.0
37.3
21.1
9.2
CUN.WT.
79.9
58.9
36.6
16.7
7.7
79.6
56.0
39.7
22.9
9.0
ASH
13.6
17.3
22.2
35.1
56.0
SINK FRACTION
70T.S PVR.S
4.93
5.55
6.50
9.36
14.20
2.21
2.91
3.94
7.11
12.76
ASH
15.7
19.9
25.5
36.3
57.3
SINK FRACTION
ror.s PVR.S
6.35
7.47
9.19
12.80
20.85
3.65
4.90
6.82
10.82
19.86
ASH
14.1
17.3
23.6
37.8
56.8
SINK FRACTION
TOT.S PTR.S
ASH
15.6
19.5
24.7
34.1
56.6
5.08
5.67
7.03
10.67
16.40
2.40
3.09
4.60
8.66
15.18
SINK FRACTION
TOT.S PTR.S
6.05
7.01
8.51
11.58
18.51
1.28
4.29
5.89
9.10
16.97
ORC.S
2.57
2.46
2.31
1.93
1.3T
ORC.S
2.53
2.36
2.10
1.62
0.67
ORC.S
2.51
2.39
2.16
1.63
0.86
ORG.S
2.50
2.37
2.16
1.88
1.05
SAMPLE 9C
FLOAT FRACTION
TOT.S PVR.S
2.750
1.305
1.130
1.400
1.600
CALC. WHOLE COAL
ANAL. WHOLE COAL
21.2
42.9
61.6
79.1
91.3
100.0
100.0
2.9
4.1
5.2
6.6
8.4
12.5
12.7
1.41
1.52
3.57
1.69
4.01
5.06
5.14
0.35
0.49
0.57
0.70
1.01
2.15
2.17
1.02
2.97
2.94
2.90
2.84
2.71
2.51
CUM.WT.
78.8
S7.1
18.4
20.4
8.7
ASH
15.1
18.8
24.1
35.1
55.5
SINK FRACTION
TOT.S PTR.S
5.50
6.21
7.44
10.23
16.03
2.63
1.39
4.68
T.63
14.09
ORC.S
2.61
2.51
2.14
2.00
1.18
SAMPLE 32C
1.280
1.100
1.400
1.600
CUH.WT.
29.5
45.7
81.1
89.8
CA1C. WHOLE COAL 100.0
ASH
1.7
4.1
6.6
7.9
12.7
FLOAT FRACTION
TOT.S PTR.S
1.06
1.07
1.11
1.65
4.72
0.17
0.41
0.73
1.10
2.18
ORG.S
2.69
2.64
2.57
2.52
2.10
70.5
54.3
10.9
10.2
ASM
16.4
19.6
18.T
54.4
SINK FRACTION
TOT.S PTR.S
5.41
6.10
10.71
3.22
4.01
9.49
11.66
OR6.S
2.14
2.02
1.11
0.12
-------
- 28 -
SAMPLE 33C
1.280
1.300
1.400
1.600
34.5
43.4
83. 0
92.4
C»IC. WHOLE CCAL 100.0
ASH
3.8
4.2
7.0
6.6
12.3
FLOAT FRACTION
TOT.S PYR.S
3.19
3.20
3.45
3.59
4.51
0.38
0.43
0.82
1.02
2.11
2.80
2.76
2.61
65.5
56.6
1T.O
7.6
ASH
16.8
IB.6
38.3
57.T
SINK FRACTION
TOT.S PYR.S
5.20
5.51
9.67
15.72
3.02
3.40
8.37
15.32
ORG.S
2.13
2.06
1.17
0.19
SAMPLE 34C
1.275
1.300
1.400
1.600
23.1
43.2
86.9
93.7
FLOAT FRACTION
ASH TOT.S
CAIC. WHOLE CCAL 100.0
3.8
4.5
7.1
8.2
11.0
3.46
3.50
3.89
4.04
4.51
0.61
0.70
1.16
1.35
1.96
ORC.S
2.83
2.78
2.70
2.65
2.51
SINK FRACTION
CUH.UT.
76.9
56.8
13.1
6.3
ASH
13.2
16.0
36.7
53.6
TOT.S
4.8)
5.29
8.67
11.62
PYR.S
2.36
2.91
7.24
10.94
ORC.S
2.41
2.30
1.22
0.38
------- |