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Beneficiation of a Phosphate Ore Produced by Borehole Mining.

Authors
Davis-BE; Llewellyn-TO; Sullivan-GV
Source
MISSING :10 pages
Link
NIOSHTIC No.
10006340
Abstract
As part of its program to increase the domestic availability of critical minerals, the Bureau of Mines conducted characterization and beneficiation studies on a St. Johns County, Florida, phosphate ore that was mined by borehole mining. Results revealed that the ore from this test mine was mostly sand-size carbonate-fluorapatite and quartz and contained 24.6 percent p2o5. Concentration by various flotation techniques produced phosphate concentrates that ranged, in percent, from 30.0 to 31.4 P2o5, 0.73 to 0.80 Mgo, and 2.8 to 7.2 Acid insoluble. Recovery of the phosphate from the ore ranged from 89.4 to 96.3 percent.
Publication Date
19820101
Document Type
IH; Report of Investigations
Fiscal Year
1982
NTIS Accession No.
NTIS Price
Identifying No.
RI 8681
NIOSH Division
TURC;
Source Name
MISSING
State
FL;
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