Method for producing nickel
(1) Electrolysis. The enriched sulfide ore is roasted into oxides, reduced to coarse nickel with carbon, and then pure metal nickel is obtained by electrolysis.
(2) Carbonylation. The nickel sulfide ore is reacted with carbon monoxide to form nickel tetracarbonyl, which is decomposed after heating to obtain metallic nickel with high purity.
(3) Hydrogen reduction method. Nickel oxide can be reduced by hydrogen to obtain metallic nickel.
最高 The highest purity is nickel carbonyl powder, then reduced nickel powder, and finally electrolytic nickel powder.
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