Process for producing nickel hydroxide from elemental nickel

Details Process for producing nickel hydroxide from elemental nickel Process for producing nickel hydroxide from elemental nickel

C - Chemistry, Metallurgy

01

G

C01G 53/04 (2006.01)

Patent

CA 2133018

The invention provides a method of producing nickel hydroxide from elemental metal. Elemental nickel is first introduced into an aqueous ammonia/ammonium salt solution capable of dissolving nickel. The potential, as measured by a standard calomel electrode, is allowed to reach a negative or reducing level. Oxygen is added to the aqueous solution at a rate that maintains the negative potential to facilitate the conversion of elemental nickel to nickel hydroxide. Nickel hydroxide may be readily preceded from the aqueous solution.

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