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Citation: TIAN Da-Ting. Transport of Zn²⁺ Through Emulsion Liquid Membrane Using Copolymer of Dodecyl Methacrylate and Acrylic Acid as Membrane Stabilizer[J]. Chinese Journal of Applied Chemistry, ;2003, 20(12): 1180-1183. shu

Transport of Zn²⁺ Through Emulsion Liquid Membrane Using Copolymer of Dodecyl Methacrylate and Acrylic Acid as Membrane Stabilizer

TIAN Da-Ting ^,

1.
School of Chemical and Environmental Engineering, Hubei Institute for Nationalities, Enshi 445000

Corresponding author: TIAN Da-Ting,
Received Date: 8 April 2003
Available Online: 29 July 2003
Fund Project: 湖北省恩施自治州科技局重点资助项目(2002A0301) (2002A0301)

Effects of the emulsion liquid membrane on the transport ratio of Zn²⁺ were studied. The membrane is composed of an amphiphilic copolymer of dodecyl methacrylate and acrylic acid, Span-80, di(2-ethylhexyl)phosphoric acid, kerosene and paraffin oil and H₂SO₄ aqueose solution, which is used as membrane stabilizer, surfactant, carrier, solvent and internal phase, respectively. The results showed that the transport ratio of Zn²⁺ was improved greatly by the steric stabilization of the amphiphilic copolymer.The optimum condition was determined as follows:ω(P(DM-AA))=3.0%, ω(Span-80)=4.0%, ω(P204)=3.0%, ω(paraffin oil)=6.0%, V(membrane phase):V(feed phase)=1:10, [H⁺]=1.0 mol/L, contact time 6 min, stirring rate 200~300 r/min.
- amphiphilic copolymer,
- emulsion liquid membrane,
- transport,
- stabilizer,
- zinc ion
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Transport of Zn²⁺ Through Emulsion Liquid Membrane Using Copolymer of Dodecyl Methacrylate and Acrylic Acid as Membrane Stabilizer