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2 083 722

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Application

94037737/25, 1994-10-06

(22)

Actual filing date

1994-10-06

(45)

Published

1997-07-10

(72)

Inventor

Lamberov A.A.Liakumovich A.G.Agadzhanjan S.I.Vjazkov V.A.Levin O.V.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Firma

METHOD OF PRODUCTION OF ALUMINUM OXIDE Russian patent published in 1997 - IPC

Abstract RU 2083722 C1

FIELD: electrochemical technology, particular, methods of production of active aluminum oxide widely used in composite catalysts applicable in hydrogenation processes. SUBSTANCE: the offered method includes dissolving of alumina in acid or alkali with subsequent precipitation of aluminum hydroxide in one of compartments of electrolyzer at current density of 5-30 A/sq. dm, temperature of 80-90 C and 6 ≅ pH < 12. EFFECT: higher rate of product manufacture, considerable reduction of formation of sewage waters, higher quality of product and reduced consumption of precipitating agents and solvents. 1 tbl

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RU 2 083 722 C1

Authors

Lamberov A.A.

Liakumovich A.G.

Agadzhanjan S.I.

Vjazkov V.A.

Levin O.V.

Dates

1997-07-10—Published

1994-10-06—Filed

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