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2 038 303

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C1

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IPC

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Application

5029854/26, 1992-02-27

(22)

Actual filing date

1992-02-27

(45)

Published

1995-06-27

(72)

Inventor

Teslja V.G.Davydov I.V.Borovinskij V.P.Meshin V.V.Kozin K.V.Kovalenko E.P.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Aljuminievo-Magnievyj Institut"Nikolaevskij Glinozemnyj Zavod

METHOD FOR PRODUCTION OF ALUMINIUM HYDROXIDE Russian patent published in 1995 - IPC

Abstract RU 2038303 C1

FIELD: production of aluminium hydroxide. SUBSTANCE: aluminium hydroxide is treated with steam at temperature of 120-250 C, steam-powder mixture is condensed and thickened to obtain aqueous suspension with solid content of 50-300 g/l and sodium oxide in liquid phase in the amount of 0.05-5 g/l. Aqueous suspension is introduced into supersaturated aluminate solution. Obtained suspension is held for some time with stirring. Aluminium hydroxide is separated from mother liquor and washed. EFFECT: higher efficiency. 2 cl, 1 dwg, 1 tbl

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RU 2 038 303 C1

Authors

Teslja V.G.

Davydov I.V.

Borovinskij V.P.

Meshin V.V.

Kozin K.V.

Kovalenko E.P.

Dates

1995-06-27—Published

1992-02-27—Filed

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