FIELD: recovery of precious metals. SUBSTANCE: method of isolating precious metals when reprocessing conditionally waste slags includes smelting with addition of carbon reducing agent. Prior to be smelt, slag is disintegrated into powder, which is separated into heavy and light fractions, the first one only being subjected to smelting. EFFECT: increased concentration of precious metals in alloy and reduced cost of produce.
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Authors
Dates
1997-06-20—Published
1995-03-31—Filed