METHOD OF TREATMENT OF CAUSTIC IN BAYER PROCESS Russian patent published in 2002 - IPC

Abstract RU 2189357 C2

FIELD: chemical technology. SUBSTANCE: method involves treatment of caustic in Bayer process containing component deposits by addition of effective amount of polymer comprising hydroxamic acid groups or its salts and having mean weight molecular mass above about 10 000 Da in suspension mixer, autoclave, widener or loading or recirculating flow as its component that inhibits effectively formation of deposit or modifies the latter. Invention is designated for decrease of amount of deposits in Bayer process. EFFECT: decreased amount of titanium deposits in Bayer process. 7 cl, 1 tbl, 2 ex

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RU 2 189 357 C2

Authors

Rotenberg Alan S.

Avotins Piter V.

Koul Robert

K'Jula Frehnk

Dates

2002-09-20—Published

1997-04-25—Filed