Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/80734
Type: Artigo de periódico
Title: RECOVERING GALLIUM FROM RESIDUAL BAYER PROCESS LIQUOR
Author: DEMAGALHAES, MEA
TUBINO, M
Abstract: Gallium is normally obtained by direct electrolysis as a by-product from Bayer process residual liquor at an aluminum processing plant. However, to permit any net accumulation of the metal, the gallium concentration must be at least about 0.3 g/l in the liquor. This article describes a continuous process of extraction with organic solvents and rhodamine-B, followed by a re-extraction step into aqueous media. The final product is a solid containing up to 18 wt.% Ga in a solid mixture of hydroxides and oxides of gallium and aluminum. This final product can then be electrolyzed to recover the gallium more efficiently.
Editor: Minerals Metals Materials Soc
Rights: fechado
Date Issue: 1991
Appears in Collections:Unicamp - Artigos e Outros Documentos

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