Method for the preparation of nickel hydroxide particles

Details Method for the preparation of nickel hydroxide particles Method for the preparation of nickel hydroxide particles

C - Chemistry, Metallurgy

01

G

C01G 53/04 (2006.01) H01M 4/52 (2006.01)

Patent

CA 2133906

ABSTRACT OF THE DISCLOSURE An improved process for the preparation of nickel hydrox- ide particles is proposed, by which the nickel hydroxide particles have an outstandingly spherical particle configuration with a rela- tively narrow particle size distribution to exhibit a high packing density of the particles. The nickel hydroxide particles are produc- ed by the precipitation reaction for which an aqueous solution of a nickel salt, ammonia water and an aqueous solution of a sodium hydroxide are concurrently and continuously introduced into a re- action vessel to form a reaction mixture consisting of the nickel hy- droxide particles and aqueous medium, from which the aqueous medium alone is withdrawn either continuously or intermittently so as to accumulate the nickel hydroxide particles in the reaction mixture contained in the reaction mixture resulting in growth of the nickel hydroxide particles to be imparted with desirable parti- cle characteristics.

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