Method for the removal of sulfur in the nickel leaching process

Details Method for the removal of sulfur in the nickel leaching process Method for the removal of sulfur in the nickel leaching process

C - Chemistry, Metallurgy

25

C

C25C 1/08 (2006.01) C22B 3/38 (2006.01) C22B 23/00 (2006.01)

Patent

CA 2340432

Invention relates to a method for the removal of sulfur from the leaching cycle of nickel processes such as leaching of nickel matte. According to the method, anolyte generated in nickel electrowinning is neutralized with the aid of a calcium-based neutralizing agent, wherein sulfur is removed from the leaching cycle as gypsum.

L'invention concerne un procédé qui permet d'éliminer le soufre du cycle de lixiviation faisant partie des opérations de traitement du nickel, telles que la lixiviation d'une matte de nickel. Le procédé consiste à neutraliser l'analyte généré par l'extraction électrolytique du nickel au moyen d'agents neutralisants à base de calcium, le soufre étant éliminé du cycle de lixiviation sous forme de gypse.

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