Process for producing nickel hydroxide

Details Process for producing nickel hydroxide Process for producing nickel hydroxide

1994-02-10

1995-09-05

Bos, Steven

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423352, C01B 1300, C01G 5300, C01C 100

Patent

active

054477077

ABSTRACT:
A process for producing nickel hydroxide from nickel powders, in which the feed nickel powder is directly converted in an aqueous solution containing nitrate and particulate nickel at least at room temperature and a pH in excess of about 6 into nickel hydroxide of a high density. Nickel powders of high surface area, e.g. 0.4 m.sup.2 /g or higher, typically produced by the thermal decomposition of nickel carbonyl, are particularly suitable as feed materials for this process.

REFERENCES:
patent: 3657013 (1972-04-01), Melin
patent: 4053578 (1975-10-01), Hill et al.
Baumgartner, C. E., "Rate of Porous Ni Plaque Corrosion in Ni(NO.sub.3).sub.2 Solutions", J. Electrochem. Soc.: Electrochem. Sci. and Tech., Jan., 1988, 135(1), pp. 36-40.
U.S. Patent Application Ser. No. 590,431, filed Apr. 26, 1945, 639 O.G. 607 (1950) (Abstract only).

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