Trihydrate crystal modifier for the Bayer process

In a Bayer process for the production of alumina, the crystal formation of alumina trihydrate is improved by adding to the clarified sodium aluminate liquor an anionic water-soluble hydroxamated polymer in an amount effective to provide an upward shift in the particle size distribution and alumina t...

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Bibliographische Detailangaben
Hauptverfasser: ROBERT P. MAHONEY, WILLIAM B. SCHNIEDERS JR
Format: Patent
Sprache:eng
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Zusammenfassung:In a Bayer process for the production of alumina, the crystal formation of alumina trihydrate is improved by adding to the clarified sodium aluminate liquor an anionic water-soluble hydroxamated polymer in an amount effective to provide an upward shift in the particle size distribution and alumina trihydrate crystals formed upon precipitation from the feed liquor.