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Primary Examiner: Rutledge, L. Dewayne
Assistant Examiner: Lewis, Michael L.
Attorney: Christel & Bean

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Title: Method for producing nickel metal powder

Abstract: A method for producing nickel powder of controlled geometry useful for conductive or resistive pastes or inks. A nickel salt is precipitated by means of hydrazine, an alkali metal base is added to the precipitate, and the resulting mixture is heated under ambient pressure until nickel powder is precipitated. The geometry such as powder surface area, particle size, and particle shape of the nickel powder end product is controlled by means of the added amount of alkali metal base or added amount of hydrazine and in some instances by means of the temperature.

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Inventors: Grundy, James D. (Williamsville, NY, US)

Application Number: 689559
Filing Date: 1976-05-24
Publication_date: 1978-05-16
Assignee: Williams Gold Refining Company Incorporated (Buffalo, NY)
Primary Class(es): 420/441 75/374
Other Classes:
US Patent Ref:

1164141	Dec, 1915	Sulzberger	75/108.
1915473	Jun, 1933	Raney	75/.
2836485	May, 1958	Schaufelberger et al.	75/108.
3399050	Aug, 1968	Evans et al.	75/108.
3966463	Jun, 1976	Fraioli et al.	75/108.

Other Refs: 39-25273

Oct, 1964	JA

Other References: Chemical Abstracts, No. 15,725d; vol. 61; American Chemical Society (1964).