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Nickel transfer and selective transport through weak acid ion-exchange membrane based on poly(vinyl chloride)/poly(methylmethacrylate-co-divinylbenzen e) system
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Higher Inst of Chemical Technology, Bourgas, Bulgaria
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Agents - Copper - Free radical polymerization - Hydrochloric acid - Ion exchange membranes - Isomerization - Metals - Polymeric membranes - Polymethyl methacrylates - Polyvinyl chlorides - Solutions - Transport properties;
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The transport of nickel and copper through a carboxylic ion-exchange membrane was investigated by using a system containing HCl as a receiver solution and nickel chloride or copper chloride as a feed solution. The transfer rate was found to be greatly affected by the H+ concentration in the receiver solution and metals concentration in the feed solution. The rate of transfer for nickel was about 60% higher than that of copper under the same experimental conditions (0.5M HCl as a receiver solution, 0.1M feed solution, and 5 h dialysis time).
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