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建立了一个氧化还原结晶液膜体系提取金属铟， 即在液膜内水相中加入还原剂， 利用膜相的选择性迁移和还原剂的选择性还原实现湿法炼锌系统中微量铟的分离与还原， 可在液膜内水相中结晶直接得到金属单质铟。在最佳操作条件下， 经一级液膜处理， 铟离子的迁移率为９６－２ ％ ， 金属铟的回收率可达到８９－６％ ， 而锌离子的迁移率仅为０－３８％ ， 且在内水相中不被还原。
A redox crystallization liquid membrane system was established to extract metallic indium, that is, a reducing agent was added to the aqueous phase in the liquid membrane. The selective reduction of the membrane phase and the selective reduction of the reductant were used to realize the trace indium Separation and reduction, can be crystallized in the liquid phase within the liquid film to obtain metal indium single. Under the optimal operating conditions, the mobility of indium ions is 96-2%, the recovery of metal indium can reach 89-6%, and the mobility of zinc ions is only 0-38% And is not reduced in the inner aqueous phase.