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Development of a Continuous Flotation Process for Removal of Insoluble Slimes from Potash Ore.

Authors
Thompson-P; Huiatt-JL
Source
MISSING :21 pages
Link
NIOSHTIC No.
10006645
Abstract
The Bureau of Mines investigated a selective flocculation-flotation technique to remove insoluble slimes from low-grade potash ore in a continuous 45-kilogram-per-hour (100-pound-per-hour) process investigation unit (piu). This research is part of the Bureau's program to improve resource recovery from low-grade ores. Results showed that 84 percent of the insoluble slimes were removed from an ore containing 5.5 percent water-insolubles and 14 percent k2o using a Bureau-developed, cationic flocculant-glycol ester-diesel oil reagent. Subsequent potash flotation recovered 75 percent of the potash in a cleaner concentrate assaying 56 percent k2o. Concentrate leaching upgraded the product to market specifications of 60 percent k2o. An economic evaluation by the Bureau suggested that the rate of return on investment, after taxes, should be about 20 percent for such an enterprise.
Publication Date
19810101
Document Type
IH; Report of Investigations
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
RI 8516
NIOSH Division
SLRC;
Source Name
MISSING
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