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Recovery of Phosphate from Florida Phosphate Slimes.

Authors
Davis-BE; Davis-EG; Llewellyn-TO
Source
MISSING :13 pages
Link
NIOSHTIC No.
10005851
Abstract
The Bureau of Mines conducted tests on samples of two Florida phosphate slimes to devise a technique to recover phosphate currently discarded because of its fine size. A flotation technique was devised to recover the phosphate contained in two fractions of each slime: the plus 37-um fraction and the plus 20-um fraction. The technique involved conditioning the flotation feed with sodium silicate and a fatty acid-fuel oil emulsion, floating a rougher phosphate concentrate, and cleaning the concentrate in two cleaner stages with sodium silicate added to each for gangue depression. Concentrates containing 21.0 to 32.3 pct p2o5 were produced with recoveries of 68.1 to 84.2 pct of the p2o5 contained in the flotation feed.
Publication Date
19870101
Document Type
IH; Report of Investigations;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
RI 9110
NIOSH Division
TURC;
Source Name
MISSING
State
FL;
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