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Pneumatic Beneficiation of Mica Ores.

Authors
Jordan-CE; Sullivan-GV; Davis-BE
Source
Pres At Soc Min Eng AIME Ann Mtg Las Vegas Nevada, 1980 Feb; :8 pages
Link
NIOSHTIC No.
10008460
Abstract
The Bureau of Mines, as part of its effort to maintain an adequate supply of minerals and metals to meet national economic and strategic needs, is conducting research on the pneumatic recovery of coarse mica. A system of crushers, screens, and zigzag air classifiers is used to concentrate coarse liberated mica particles from mica ore and from the waste tailings of abandoned mica operations. The plus 0.21-Mm-size mica is effectively recovered by this method. The mica concentrates produced contain over 90 pct mica. The method recovered up to 78 pct of the mica in the samples. As a dry concentration method, the pneumatic beneficiation technique may be advantageous to areas of limited water resources.
Publication Date
19800201
Document Type
OP;
Fiscal Year
1980
NTIS Accession No.
NTIS Price
Identifying No.
OP 22-80
NIOSH Division
TURC;
Source Name
Pres. At Soc. Min. Eng., AIME, Ann. Mtg., Las Vegas, Nevada, Feb. 24- 28, 1980 SME Preprint 80-7
State
NV;
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