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Recovering Low Concentration Cadmium from A System Containing High Concentration Zinc by Liquid Membrane Crystallizing Technique

机译:通过液体膜结晶技术从含有高浓度锌的系统中回收低浓度镉

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The purpose of this paper is to recover low concentration cadmium from a system containing high concentration zinc and get CdS product directly, so a new liquid membrane system containing DIPSA, TIBPS as carriers, (NH_4)_2S as precipitating agent was reported . Precipitating Cd + in the interanl aq. phase that used to treat sulfuric acid leaching solution of zinc oxide in zinc hydrometallurgy has gotten satisfactory separation result of recovering cadmium from high concentration zinc. After one-stage of batch process under the optimum liquid membrane conditions, 98.6% transferring rate and 98.1% recovering rate of cadmium has been obtained with only less than 1.0% transferring rate of zinc, and the feed solution can be purified very well.
机译:本文的目的是从含有高浓度锌的系统中恢复低浓度镉,并直接得到Cds产物,因此报道了一种含有Dipsa,Tibps作为载体的新型液体膜系统(NH_4)_2s作为沉淀剂。在Interanl AQ中沉淀CD +。用于治疗锌氧化锌氧化锌氧化锌氧化锌的阶段已经得到了从高浓度锌回收镉的令人满意的分离结果。在最佳液体膜条件下的间歇过程中的一级阶段,已经获得了98.6%的转移率和98.1%的镉回收率,仅具有锌的转移率小于1.0%,并且可以非常纯净进料溶液。

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