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XAMath is available on the World Wide Web at
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22
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85033842145
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note
-
The percent of iron which is present as pyrite in each coal can be deduced from data contained in the Argonne Premium Coal Sample Handbook (ref 21). The analyzed amount of pyritic sulfur in the dried APCS measures a corresponding amount of pyritic iron. The conversion factor from pyritic sulfur to iron is 0.871, the ratio of the atomic weights of one iron atom and two sulfur atoms. The resultant quantities of pyritic iron were divided by the total iron in the coal, as determined by neutron activation analysis (ref 15), to estimate the fraction of iron that is in pyritic form. Similar results are obtained if the ferric oxide content of the high temperature ash is used as the measure of the total amount of iron in each coal.
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24
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0004048530
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39
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85033866927
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note
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3, and pyrite as the model compounds.
-
-
-
-
40
-
-
85033870317
-
-
note
-
Reference 21, p 23. The amounts of ferric oxide were determined by multiplying the percent of ferric oxide in each ash by the total ash from each sample.
-
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41
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0025721629
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George, G. N.; Gorbaty, M. L.; Keleman, S. R.; Sansone, M. Energy Fuels 1991, 5, 93-97.
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Sansone, M.4
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