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In Situ Copper Leaching Research At the Emerald Isle Mine.

Authors
D'andrea-DV; Runke-SM
Source
Ch 24 in World Mining & Metals Tech 1:409-419
Link
NIOSHTIC No.
10009965
Abstract
This paper describes the Bureau of Mines-El Paso Mining and Milling Company cooperative research program at the Emerald Isle Mine near Kingman, Arizona. This research program was directed toward developing in situ leaching methods for 200,000 tons of ore exposed in the pit bottom and also 1,500,000 tons of ore under 200 feet of overburden adjacent to the pit. A test area in the pit bottom containing 15,000 tons of ore was blasted and leached. The results of this leach test were encouraging, and the entire pit bottom was leached in-place for about 7 months. Two test blasts under 200 feet of overburden and extending to 290 feet were detonated in an area near the open pit. The results of these blasts were evaluated by core drilling and permeability measurements. An in situ leaching system was designed, but not implemented, to recover copper from the 1,500,000-ton area near the pit. The company decided to terminate operations at the Emerald Isle Mine in November 1975.
Publication Date
19760101
Document Type
OP;
Fiscal Year
1976
NTIS Accession No.
NTIS Price
Identifying No.
OP 111-76
NIOSH Division
TCRC;
Source Name
Ch. 24 in World Mining & Metals Tech., V. 1, PP. 409-419
State
AZ;
TOP