ACTIVATED ALUMINA PRODUCTION PROCESS Russian patent published in 2005 - IPC

Abstract RU 2258035 C2

FIELD: inorganic compounds technologies.

SUBSTANCE: invention relates to production of activated alumina appropriate as catalyst carrier for petrochemical and organic synthesis, in particular as reforming catalyst carrier. Process comprises continuous precipitation of aluminum hydroxide with pseudoboehmit structure from basic aluminum sulfate solution by neutralization with alkali reagent, filtration, autoclave treatment of resulting aluminum hydroxide precipitate in aqueous ammonia solution at pH 10.0-11.0 of reaction mixture, 135-145°C, and agitation time 1.0-2.0 h, washing of precipitate with chemically desalted water, drying, and final heat treatment.

EFFECT: improved quality of activated alumina and reduced consumption of water in washing of final product.

2 cl, 1 tbl

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RU 2 258 035 C2

Authors

Anashkin V.S.

Fomin Eh.S.

Lebedev A.D.

Zusman M.V.

Dates

2005-08-10Published

2003-09-01Filed