Method for producing nickel metal powder

Details Method for producing nickel metal powder Method for producing nickel metal powder

1976-05-24

1978-05-16

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75108, 75251, C22B 2304, C22C 104

Patent

active

040896765

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.

REFERENCES:
patent: 1164141 (1915-12-01), Sulzberger
patent: 1915473 (1933-06-01), Raney
patent: 2836485 (1958-05-01), Schaufelberger et al.
patent: 3399050 (1968-08-01), Evans et al.
patent: 3966463 (1976-06-01), Fraioli et al.
Chemical Abstracts, No. 15,725d; vol. 61; American Chemical Society (1964).

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