Extracting copper from sulphide concentrates

Details Extracting copper from sulphide concentrates Extracting copper from sulphide concentrates

1976-09-03

1977-11-15

Satterfield, Walter R.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 7, 75 21, 75 63, 75 89, C22B 1500

Patent

active

040583953

ABSTRACT:
In a process for extracting copper from copper-containing sulphide concentrates the concentrate is roasted to reduce the sulphur content below 1% by weight and the roasted material is then segregated in a conventional segregation process. A silica-containing substance, such as washed river sand, is added to the roasted material to bring the silica content up to about 30% and the copper content to below 30% before feeding the material to the segregation process.

REFERENCES:
patent: 3585023 (1971-06-01), Vlnaty et al.
patent: 3799764 (1974-03-01), Opie et al.
patent: 3871867 (1975-03-01), Last et al.

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