ALUMINUM HYDROXIDE PRODUCTION PROCESS Russian patent published in 1999 - IPC

Abstract RU 2124478 C1

FIELD: industrial inorganic synthesis. SUBSTANCE: in order to produce pseudoboehmite-structure aluminum hydroxide, aqueous aluminate solution with Na₂O/Al₂O₃ molar ratio 0.5 to 2.0 and aluminum oxide concentration 1 to 50 wt % is decomposed at 0 to 30 C and molar ratio of sodium aluminate (on conversion to Al₂O₃) to hydrogen peroxide from 0.02 to 0.15. Aluminum hydroxide formed with pseudoboehmite structure is isolated and washed with distilled water at 0 to 30 C until pH 7-8 is attained. EFFECT: improved procedure. 3 ex

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RU 2 124 478 C1

Authors

Mel'Nikov V.B.

Vershinin V.I.

Dates

1999-01-10—Published

1996-07-01—Filed