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Use of Shredded Automobile Scrap for Copper Cementation.

Staker WL; Groves RD

NTIS: PB 263 575 :13 pages

10007840

The Bureau of Mines investigated the use of shredded automobile scrap for copper cementation. Air agitation was used to improve the cementation rate and prevent excessive buildup of copper on the iron. The pieces of scrap were too large to be properly evaluated in the laboratory; therefore, a pilot scale test unit was constructed and the process tested at field locations. Pregnant solution was obtained from industrial leaching operations, processed in the test unit and the barren solution and cement copper were returned to the plant process stream. The test results showed that the air-agitated launder containing automobile scrap was an effective means for recovering copper from leach solutions. A continuous 14-day test run was made without a noticeable decrease in cementation efficiency. The most suitable scrap product was obtained from incinerated automobile hulks shredded in a hammer type of shredder. However, it was necessary to remove small pieces such as nuts and bolts because they interfered with the discharge of the copper product.

19760101

IH; Report of Investigation;

1976

PB-263575

A03

RI 8198

SLRC;

NTIS: PB 263 575