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|Type:||Artigo de periódico|
|Title:||RECOVERING GALLIUM FROM RESIDUAL BAYER PROCESS LIQUOR|
|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|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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