Comparative studies of high gradient magnetic separation for sulfur removal from Paleozoic coals from North China, and the Illinois Basin, USA
- China Univ. of Geosciences (China)
- Indiana Univ., Bloomington, IN (United States)
A series of samples from Huoxian, Huainan in Northern China, and the South East Illinois Basin, USA were ground to finer than 200 mesh and slurried at 10% solids prior to high gradient magnetic separation (HGMS) at field strengths of up to 6 Tesla at the Department of Geological Sciences, Indiana University. The feed materials, magnetic products and rejects were evaluated by chemical and X-ray diffraction analysis to determine the minerals composition and separation efficiency of the technique. X-ray diffraction and chemical data confirmed the similarity of the coal quality from these two resources. The Chinese coals contained 3--4% sulfur and 8--10% ash while the Illinois basin coals ranged from 3--5% sulfur and 7--13% ash. Huoxian coals contain a higher proportion of pyrite but lower amounts of clay minerals than the Huinan coals. Pyrite was effectively removed from all samples using HGMS. This pyrite removal also resulted in overall lower ash values. Detailed results will be presented.
- OSTI ID:
- 324634
- Report Number(s):
- CONF-970931--
- Country of Publication:
- United States
- Language:
- English
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