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2 102 191

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IPC

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Application

96107302/02, 1996-04-16

(22)

Actual filing date

1996-04-16

(45)

Published

1998-01-20

(72)

Inventor

Chapajkina R.A.Safin B.R.Starodumov V.P.Krutovskaja L.A.

(73)

Holder

Sibirskij Khimicheskij Kombinat

METHOD FOR PRODUCTION OF NICKEL POWDER Russian patent published in 1998 - IPC

Abstract RU 2102191 C1

FIELD: production of metal powders used, in particular, in preparation of catalysts and different alloys. SUBSTANCE: method includes reduction in water medium of basic nickel carbonate with aqueous solution of hydrazine hydrate with concentration of hydrazine of at least 4 mole/l with hydrazine-nickel molar ratio of at least 1.3 at temperature of 80-90 C. Nickel powder yield amounts to more than 90%. Produced nickel presents a black solid ultrafine powder with particles sizing 54 ± 14. mm and specific surface of about 20.8 sq.m/g. EFFECT: higher efficiency. 1 tbl

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RU 2 102 191 C1

Authors

Chapajkina R.A.

Safin B.R.

Starodumov V.P.

Krutovskaja L.A.

Dates

1998-01-20—Published

1996-04-16—Filed

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