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Article
Removal of impurities from crude nickel sulfide by selective dry chlorination and leaching
Finely ground impure nickel sulfide is treated with dry gaseous chlorine at about 600°F to selectively chlorinate copper, cobalt and iron. These chlorinated impurities are leached from the nickel sulfide by ag...
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Article
The recovery of osmium from nickel refinery anode slimes
The commencement of pilot-scale production of high-purity osmium in 1965 increased to fifteen the number of elements recovered in marketable form from the Sudbury, Ontario, Ni−Cu ores. Detection of minute quan...