Sequential solvent extraction for forms of antimony in five selected coals
Journal of Geology
By: C. Qi, Gaisheng Liu, Y. Kong, C. L. Chou, and R. Wang
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Abstract
Abundance of antimony in bulk samples has been determined in five selected coals, three coals from Huaibei Coalfield, Anhui, China, and two from the Illinois Basin in the United States. The Sb abundance in these samples is in the range of 0.11-0.43 ??g/g. The forms of Sb in coals were studied by sequential solvent extraction. The six forms of Sb are water soluble, ion changeable, organic matter bound, carbonate bound, silicate bound, and sulfide bound. Results of sequential extraction show that silicate-bound Sb is the most abundant form in these coals. Silicate- plus sulfide-bound Sb accounts for more than half of the total Sb in all coals. Bituminous coals are higher in organic matterbound Sb than anthracite and natural coke, indicating that the Sb in the organic matter may be incorporated into silicate and sulfide minerals during metamorphism. ?? 2008 by The University of Chicago. All rights reserved.
Suggested Citation
Qi, C., Liu, G., Kong, Y., Chou, C.L., Wang, R., 2008, Sequential solvent extraction for forms of antimony in five selected coals: Journal of Geology, v. 116, no. 2, p. 192-200, https://doi.org/10.1086/529155.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Sequential solvent extraction for forms of antimony in five selected coals |
| Series title | Journal of Geology |
| DOI | 10.1086/529155 |
| Volume | 116 |
| Issue | 2 |
| Year Published | 2008 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Geology |
| First page | 192 |
| Last page | 200 |