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Citation: Xu Yuwu, Wang Ying, Dong Shihua. TRANSPORT OF Ag (Ⅰ)THROUGH LIQUID MEMBRANE CONTAINING AN OLIGOMER OF EPITHIOPROPYL BUTYL ETHER[J]. Chinese Journal of Applied Chemistry, ;1993, 10(2): 13-16. shu

TRANSPORT OF Ag (Ⅰ)THROUGH LIQUID MEMBRANE CONTAINING AN OLIGOMER OF EPITHIOPROPYL BUTYL ETHER

1.
Department of Chemistry, Wuhan University, 430072 Wuhan

Received Date: 28 February 1992
Available Online: 28 July 1992
Fund Project:

The oligomer of epithiopropyl butyl ether (PSB) with M_n=1600 was synthesized and its transport properties as a mobile carrier for Ag (Ⅰ) in bulk liquid membrane system were studied. It was found that the presence of the oligomer carrier in liquid membrane is necessary for transport of Ag (Ⅱ) and the transportion rate of Ag (Ⅰ) is dependent on the carrier concentration in liquid membrane, the thickness of liquid membrane,the acidity and the concentration of Ag(Ⅰ) in source phase and the additives in receiving phase. In the system AgNO₃(aq)/PSB-ClCH₂CH₂Cl/NH₃·H₂O(aq),Ag(Ⅰ) can be transported from source phase to receiving phase completely under the appropriate conditions and only the Ag(Ⅰ) can be transported to receiving phase selectively from Ag(Ⅰ)-K(Ⅰ)-Cu (Ⅱ)-Zn (Ⅱ) mixtrue. The carrier can be used repeatedly without marked lose of its activity and selectivity.
- liquid membrane separation,
- silver,
- oligomer,
- epithiopropy1 buty1 ether
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