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Selectivities of laboratory flotation and float-sink separations of coal.

Authors
Galye-JB; Smelley-AG
Source
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, RI 5691, 1960 Jan; :1-19
Link
NIOSHTIC No.
20039737
Abstract
This investigation was conducted by the Federal Bureau of Mines to compare the selectivities of diverse flotation reagents and also of flotation and float-sink methods of separation. Flotation tests, using sodium chloride, an alcohol-type frothing agent, and a kerosine-pine oil mixture as reagents, were made on seven coking-coal samples representing four different beds. The results indicated equivalent selectivities relative to sulfur rejection when entrapment effects were minimized by recleaning the various products. Selectivities relative to ash rejection were also equivalent for some coals; for others, the selectivities of the reagents tended to increase in the order sodium chloride, alcohol-type frother, and kerosine-pine oil. Float-sink tests on these same coals generally gave results indicating better selectivities than those obtained in flotation tests at comparable levels of recovery.
Keywords
Mining-industry; Minerals; Mineral-processing
Publication Date
19600101
Document Type
Report of Investigations
Fiscal Year
1960
NTIS Accession No.
NTIS Price
Identifying No.
RI-5691
NIOSH Division
TURC
Source Name
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, RI 5691
State
AL
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