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Application

98118179/03, 1998-10-02

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Start date

1998-10-02

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Actual filing date

1998-10-02

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Published

2000-04-20

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Inventor

Mozhzherin V.A.Sakulin V.Ja.Migal' V.P.Novikov A.N.Salagina G.N.Aleksandrov B.P.Aksel'Rod L.M.Shtern E.A.

(73)

Holder

Oao Kombinat Ogneuporov"

METHOD OF PREPARING ANTIOXIDANT Russian patent published in 2000 - IPC

Abstract RU 2147565 C1

FIELD: chemical industry. SUBSTANCE: described is method of preparing antioxidant used as retardant of process for oxidation carbon constituent of graphite-containing refractories. Said method is carried out by preparing blend followed by high-temperature synthesis and grinding of the antioxidant to desired fraction, ratios of components being as follows, wt %: aluminium oxide, 30-89: silicon oxide, 4-62: and carbon-containing component, 7-25. Melting operation is carried out under conditions of reducing blend components. Aluminium and silicon oxides include kaolin, sillimanite, kyanite, bauxite or mixture thereof with alumina. At low power consumption antioxidant is highly efficient at temperature ranging from 600 to 140 C. EFFECT: more efficient preparation method. 2 cl, 9 ex

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RU 2 147 565 C1

Authors

Mozhzherin V.A.

Sakulin V.Ja.

Migal' V.P.

Novikov A.N.

Salagina G.N.

Aleksandrov B.P.

Aksel'Rod L.M.

Shtern E.A.

Dates

2000-04-20—Published

1998-10-02—Filed

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