Simultaneous and selective extraction of zinc and copper ions by two parallel module of supported liquid membranes

摘要

One of the main advantages of the supported liquid membrane(SLM) would be that different kinds of ions can be extracted selectively or simultaneously from multi-component solutions by parallel treatments with multi-SLM units. This distinctivefeature of the SLM extraction is originated from its non-dispersive contacting operation between organic and aqueous phases. In this study, simultaneous and selective extractions of zinc and copper ions from their mixed solutions have been demonstratedusing two parallel modules of SLMs. PC88A and LIX84 were used as the extractants for zinc and copper, respectively, and the Hoechst Celanese hollow fiber modules(Liqui-Cel Lab Module) as the supporters. The performance of the simultaneous system wascompared with those of the system in which the extraction of each component was achieved by individual runs.