application of surfactants inliquid membranes for metal extraction

liquid surfactant membranes LSMs have developed into a versatile technique for a variety of applications involving selective and controlled transport of metal and heavy metal ions. In this technique surfactants plays an important role some of them are utilized as an emulsifier , a carrier or both of them but soubtless the most important of their role is as stabilizer . some of the profitable surfactants were used in LSM for metal ions extraction are polythylene glycol -type PEG span80 and ECA 4360.

Keywords:

LSM , ELM , surfactant , Bi-functional surfactant , metal ions