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Citation: HE Ding-Sheng, MA Ming, ZENG Xin-Hua, XIE Qing-Ji. Kinetic Analysis of Zn(Ⅱ)Extraction by Liquid Membrane Containing Di(2-ethylhexyl) phosphoric Acid in Kerosene[J]. Chinese Journal of Applied Chemistry, ;2000, 17(1): 47-50. shu

Kinetic Analysis of Zn(Ⅱ)Extraction by Liquid Membrane Containing Di(2-ethylhexyl) phosphoric Acid in Kerosene

1.
College of Chemistry and Chemical Engineering, Hu'nan Normal University, Changsha 410081

Received Date: 24 June 1999
Available Online: 25 October 1999
Fund Project:

The effects of H₂SO₄ concentration in stripping phase, H⁺ concentration in feed phase and temperature on the transport of zinc(Ⅱ) ions through a bulk liquid membrane containing di(2-ethylhexyl) phosphoric acid in kerosene have been studied. The pseudo-first order apparent rate constants, k_1d and k_2a, of interfacial reactions in membrane-feed solution interface or membrane-stripping solution interface have been determined with bulk liquid membrane on various carrier concentration and Span-80 content.The zinc(Ⅱ)transport kinetics has been evaluated by two consecutive irreversible first order reactions.
- zincion,
- liquid membrane extraction,
- di(ethylhexyl) phosphoric acid,
- transport kinetics
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