Title of article
Liquid-Liquid Extraction of Gallium from Jajarm Bayer Process Liquor Using Kelex 100
Author/Authors
-، - نويسنده Department of Mining Engineering, Faculty of Engineering, Tarbiat Modares University, Tehran, I.R. IRAN Abdollahy, Mahmood , -، - نويسنده Department of Mining Engineering, Faculty of Engineering, Tarbiat Modares University, Tehran, I.R. IRAN Naderi, Hojat
Issue Information
فصلنامه با شماره پیاپی 44 سال 2007
Pages
5
From page
109
To page
113
Abstract
-
Abstract
The solvent extraction of gallium from a concentrated Jajarm Bayer process liquor containing 164.90 g/l of Na2O, 86.70 g/l of Al2O3 and 106.02 ppm of gallium was investigated using 10 vol.% Kelex100, a 7-alkyl substituted-8 hydroxyquinoline as an extractant, 10 vol.% etanol as a modifier and kerosene as a diluent. At (Vo :Va = 1.0:1.0) organic to aqueous phase ratio and at room temperature, 93.39% of gallium was recovered in 60 minutes. Back extraction studies of the loaded organic phase were carried out using hydrochloric acid, sulfuric acid and sodium hydroxide. Scrubbing of aluminium co-extracted into the organic phase was carried out with 5.0 M HCl and subsequently stripping of gallium was carried out with 1.5 M HCl. The final strip liquor was found to contain 490 ppm of gallium along with 141.73 ppm of aluminium.
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Serial Year
2007
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Record number
2151867
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