Cobalt encapsulated nickel hydroxides and basic carbonates...

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

Reexamination Certificate

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C429S223000, C423S420200

Reexamination Certificate

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10635906

ABSTRACT:
A process for producing a cobalt III encapsulated nickel hydroxide or basic nickel carbonate product including the steps of:(i) providing an ammoniacal solution including cobalt ammine complexes and nickel II ammine complexes;(ii) progressively lowering the ammonia content to sequentially precipate the nickel as an hydroxide or basic carbonate; and(iii) further lowering the ammonia content to precipitate the majority of the cobalt as cobalt III oxide hydroxide;wherein the majority of cobalt III oxide hydroxide coats on the surface of the precipitate nickel hydroxide or basic nickel carbonate to form a coated particle.

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Derwent Abst. Acc. No0. 2000-353319/31; JP 2000-077070; Sumitomo Metal Mining Co., Mar. 14, 2000.
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Derwent Abst. Acc., No. 99-08719608; JP 10-321229, Sumitomo Metal Mining Co.; Apr. 4, 1998.
Derwent Abst. Acc., No. 98-163570/15, JP 10-029820; Nippon Chem. Ind. Co. Ltd., Feb. 3, 1998.

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