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An Economic Appraisal of the Supply of Copper from Primary Domestic Sources.

Authors
Bennett-HJ; Moore-L; Welborn-LE; Toland-JE
Source
NTIS: PB 223 727 :156 pages
Link
NIOSHTIC No.
10009459
Abstract
This study was performed by the Bureau of Mines to evaluate the potential supply of primary copper from domestic resources. A tonnage-price relationship was developed indicating the quantity of copper that could be produced economically from known deposits at various copper prices and at various rates of return on the required capital investment. Costs of production are based on estimated capital and operating costs for mining, concentrating, smelting, and refining the copper. Total known recoverable copper resources are 189 million short tons of which 83 million tons could be economically recovered assuming a price of $0.50 Per pound of copper, credit for the recovery of byproducts, and a 12-percent rate of return on capital investment. The quantities of recoverable byproducts associated with the 83 million tons of recoverable copper are molybdenum, 1.8 million tons, gold, 43 million troy ounces, and silver, 740 million troy ounces.
Publication Date
19730101
Document Type
IH; Information Circular;
Fiscal Year
1973
NTIS Accession No.
PB-223727
NTIS Price
A09
Identifying No.
IC 8598
NIOSH Division
IFOC;
Source Name
NTIS: PB 223 727
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