Separation of contaminant material from copper wire and cable

Details Separation of contaminant material from copper wire and cable Separation of contaminant material from copper wire and cable

1980-10-29

1981-08-18

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 44S, 75 63, 75 72, 75 85, 75113, 134 2, C22B 2506

Patent

active

042844282

ABSTRACT:
Copper scrap from chopped and separated copper wire and cable is treated to remove contaminants still remaining on or mixed with the copper by sequential treatment, first in a sodium nitrate-postassium nitrate fused salt bath followed by a cuprous chloride fused salt bath.

REFERENCES:
patent: 121948 (1871-12-01), Lenning
patent: 155368 (1874-09-01), Dechert
patent: 2268484 (1941-12-01), Hill
patent: 2891881 (1959-06-01), Jaffe
patent: 3615357 (1971-10-01), Wainer
patent: 3762911 (1973-10-01), Crone
patent: 3853543 (1974-12-01), Thomas
patent: 3866893 (1975-02-01), Hoberman

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