| 简介 |
FIELD : hydrometallurgy of rare and trace elements.
SUBSTANCE : method, which can be used for extraction recovery and concentration of indium in sulfate zinc solutions, comprises extraction using, as extractant, organophosphorus reagents in organic diluent followed by re-extraction with sulfuric acid solution (250-450 g/dm3), said organophosphorus reagents being mixture containing in diluent di-2-ethylhexylphosphoric acid (20-30 vol %) and isododecylphosphetane acid (5-10 vol %).
EFFECT : increased degree of recovering indium from aqueous phase and simplified technology due to use of chloride-free sulfuric acid for re-extraction.
1 tbl |
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