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2 092 438

(13)

(51)

IPC

(21) (22)

Application

96104641/25, 1996-03-06

(22)

Actual filing date

1996-03-06

(45)

Published

1997-10-10

(72)

Inventor

Danchevskaja M.N.Ivakin Ju.D.Zuj A.I.Torbin S.N.

(73)

Holder

Khimicheskij Fakul'Tkt Mgu Im.MvlomonosovaDanchevskaja Marina NikolaevnaIvakin Jurij DmitrievichZuj Anzhelika IvanovnaTorbin Sergej Nikolaevich

METHOD OF PREPARING FINE CRYSTALLINE CORUNDUM Russian patent published in 1997 - IPC

Abstract RU 2092438 C1

FIELD: manufacture of fine crystalline corundum. SUBSTANCE: aluminium hydroxide is subjected to mechanical activation and then thermocouple treatment at temperatures from 350 to 450 C and water vapor pressure from 30 to 400 C. EFFECT: more efficient preparation method. 14 cl, 1 dwg

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RU 2 092 438 C1

Authors

Danchevskaja M.N.

Ivakin Ju.D.

Zuj A.I.

Torbin S.N.

Dates

1997-10-10—Published

1996-03-06—Filed