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2 021 079

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Application

3179531/02, 1987-08-17

(22)

Actual filing date

1987-08-17

(45)

Published

1994-10-15

(72)

Inventor

Tarabrin G.K.Sitnov A.G.Vinokurov G.V.Danilovich Ju.A.Belkin V.S.Tarabrina V.P.Chizhenkov E.N.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie

CHROMIUM CARBOBORIDE PRODUCTION PROCESS Russian patent published in 1994 - IPC

Abstract RU 2021079 C1

FIELD: chemical industry. SUBSTANCE: briquets are made of dosed powders of boric anhydride, chromium sequioxide and black stirred thoroughly. The briquets are melted in electric oven. Then the obtained carbide block is crushed, and free carbon is removed by means of a gravitational-air method. Then further crushing is performed to a fraction of -0.5 to -0.2, and the obtained material is used to manufacture fused bands of general purpose. EFFECT: high-quality fusing material. 4 tbl

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RU 2 021 079 C1

Authors

Tarabrin G.K.

Sitnov A.G.

Vinokurov G.V.

Danilovich Ju.A.

Belkin V.S.

Tarabrina V.P.

Chizhenkov E.N.

Dates

1994-10-15—Published

1987-08-17—Filed

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