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2 077 519

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C1

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IPC

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Application

93043802/03, 1993-09-07

(22)

Actual filing date

1993-09-07

(45)

Published

1997-04-20

(72)

Inventor

Gaponov Ja.G.Zagnojko V.V.Koptelov V.N.Dmitrienko Ju.A.Utrobin V.N.Luzin A.G.Polovinkina R.S.

(73)

Holder

Aktsionernoe Obshchestvo Po Proizvodstvu Ogneuporov

METHOD FOR PRODUCTION OF PERICLASE POWDERS Russian patent published in 1997 - IPC

Abstract RU 2077519 C1

FIELD: production of refractory materials having more than 91 % content of MgO. SUBSTANCE: raw materials are roasted at 600-1000 C, thus prepared product is cooled at rate 50-60 C per 1 minute, simultaneously its selective breakdown takes place. Magnesite being affected by causticization is carried out by classification, fine fraction being roasted. Rate of increasing temperature is 20-50 C per 1 minute. EFFECT: increased density of periclase and increased yield of powders. 4 tbl

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RU 2 077 519 C1

Authors

Gaponov Ja.G.

Zagnojko V.V.

Koptelov V.N.

Dmitrienko Ju.A.

Utrobin V.N.

Luzin A.G.

Polovinkina R.S.

Dates

1997-04-20—Published

1993-09-07—Filed

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