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Coal-pyrite Flotation: A Modified Technique Using Concentrated Second-stage Pulp.

Authors
Miller-KJ
Source
NTIS: PB 243 795 :12 pages
Link
NIOSHTIC No.
10008005
Abstract
The Bureau of Mines two-stage coal-pyrite flotation process was modified to provide a more concentrated final clean coal slurry underflow that could be dewatered economically by filtration or centrifugation. This was accomplished by doing the first-stage coal flotation step in the conventional manner with a slurry of about 8 percent solids but running the second-stage pyrite flotation step with undiluted coal froth concentrate containing about 25 percent solids. The final clean coal underflow produced by the new technique contained between 26 and 30 percent solids; this pulp was sufficiently concentrated to be filtered industrially without further thickening. Sulfur removal was equal to that obtained using dilute second-state pulp.
Publication Date
19750101
Document Type
IH;
Fiscal Year
1975
NTIS Accession No.
PB-243795
NTIS Price
A03
Identifying No.
TPR 91
NIOSH Division
PRC;
Source Name
NTIS: PB 243 795
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