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Desulfurization of Various Midwestern Coals by Flotation.

Authors
Miller-KJ
Source
NTIS: PB 277 273 :10 pages
Link
NIOSHTIC No.
10007827
Abstract
Laboratory batch flotation tests were conducted to determine the viability of the Bureau of Mines coal-pyrite flotation process in desulfurizing various coals from the midwestern coalfields. Nine coals obtained from western Kentucky and Illinois were used in the study. In addition to the Bureau's coal-pyrite flotation process, some of the coals were subjected to two-stage rougher-cleaner coal flotation for comparison. The results of this work showed that up to a 70-percent pyritic sulfur reduction could be obtained by flotation and that the Bureau's coal-pyrite flotation was superior to rougher-cleaner coal flotation. Because many of the coals retained far too much sulfur even after second-stage flotation treatment, it was concluded that these midwestern coals are more difficult to desulfurize by flotation than are the Appalachian coals tested in earlier Bureau experiments.
Publication Date
19780101
Document Type
IH; Report of Investigation;
Fiscal Year
1978
NTIS Accession No.
PB-277273
NTIS Price
A02
Identifying No.
RI 8262
NIOSH Division
PRC;
Source Name
NTIS: PB 277 273
State
IL; KY;
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