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Recovering Byproduct Heavy Minerals from Sand and Gravel, Placer Gold, and Industrial Mineral Operations.

Authors
Gomes-JM; Martinez-GM; Wong-MM
Source
NTIS: PB 300 401 :15 pages
Link
NIOSHTIC No.
10007951
Abstract
The Bureau of Mines, as part of an effort to maximize minerals and metals recovery from domestic resources, has investigated the feasibility of recovering heavy minerals as byproducts from sand and gravel, placer gold, and industrial mineral operations in northern California. Sand samples from about 50 locations were treated by gravity separation to yield heavy-mineral concentrates (black sands). Mineral compositions of the concentrates were determined by chemical analysis and mineralogical examination. Individual zircon, ilmenite, magnetite, platinum-group metals, thoria, and silica products were prepared from heavy-mineral concentrates by selective separation using low-and high-intensity magnetic, high-tension, and flotation equipment.
Publication Date
19790101
Document Type
IH; Report of Investigation;
Fiscal Year
1979
NTIS Accession No.
PB-300401
NTIS Price
A03
Identifying No.
RI 8366
NIOSH Division
RERC;
Source Name
NTIS: PB 300 401
State
CA;
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