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Shows processes used in the refining of platinum, palladium, rhodium, ruthenium, iridium, gold and silver concentrates remaining after nickel and copper are extracted from the ore.
Detailed description of the refining of copper from the relatively crude 97% pure blister copper to the electrolytically refined copper of 99.97% purity.
Explains the purpose of refining and shows some of the principles involved. Surveys electrolytic and Mond Carbonyl methods of nickel refining on the large scale necessary to obtain the great quantities of...
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