LIQUID-MEMBRANE-GEL EXTRACTION OF METALIC SPEICIES (CU~(2+)AND ZN~(2+))

摘要

At the time of the elaboration of a metal, the choice of a concentration-purification process is carried out according to several criteria. Lab tests involving several techniques are done before we opt for the more efficient process. The nature and composition of the solutions are the main parameters that guide this choice. This work consists to implement a particular type of polymeric membrane (liquid membrane-gel) in order to recover and concentrate copper ions from discharges of surface treatment workshops. This technique is based on the principle of liquid-liquid extraction [1].