THE RECOVERY OF ALUMINA TRIHYDRATE DURING THE BAYER PROCESS USING A WATER CONTINUOUS POLYMER

A method for increasing the floccule size and volume of alumina trihydrate during the Bayer processing of bauxite ore using a flocculant in conjunction with a water continuous polymer. The addition of the flocculant and the water continuous polymer to the alumina trihydrate slurry following the secu...

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Bibliographic Details
Main Authors O'BRIEN, KEVIN L, WANG, JING, DAVIS, DAVID C, STROMINGER, MICHAEL G
Format Patent
LanguageEnglish
French
Published 15.05.2008
Subjects
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Summary:A method for increasing the floccule size and volume of alumina trihydrate during the Bayer processing of bauxite ore using a flocculant in conjunction with a water continuous polymer. The addition of the flocculant and the water continuous polymer to the alumina trihydrate slurry following the security filtration and settling producing trihydrate that is put through the calcination process to produce purified alumina or used as seed for the precipitation process. L'invention concerne un procédé pour augmenter la taille et le volume de flocule de trihydrate d'alumine pendant le traitement Bayer de minerai de bauxite en utilisant un floculent en association avec un polymère continu à base d'eau. L'ajout du floculent et du polymère continu à base d'eau à la suspension de trihydrate d'alumine à la suite de la filtration et de la sédimentation de sécurité produit du trihydrate qui est passé à travers le processus de calcination pour produire de l'alumine purifiée ou utilisée en tant que germe pour le processus de précipitation.
Bibliography:Application Number: WO2007US83914