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A solvent extraction process for extracting zinc and cadmium from aqueous solutions of their salts
A solvent extraction process for extracting zinc and cadmium from aqueous solutions of their salts
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机译:一种从其盐水溶液中提取锌和镉的溶剂提取方法
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摘要
A process for extracting metal values especially zinc values from aqueous solutions of metal salts which comprises contacting the aqueous solution with an organic phase comprising a compound of the formula: CHEM wherein each of R1, R2, R3 and R4, independently, represents an optionally substituted hydrocarbyl or hydrocarbyloxy group or R1 and R2 together with the attached phosphorus atom and/or R3 and R4 together with the attached phosphorus atom form a 5- to 8-membered heterocyclic ring.
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