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Separation of Indium from Acid Sulfate‐Containing Solutions by Ion Exchange with Impregnated Resins
Indium separation using ion exchange resins from acidic polymetallic and very diluted solutions are investigated. Since the selectivity of commercial ion exchange resins have proven to be too low for an effective separation from solutions with high content of other metals, Lewatit® TP 208 was impregnated with common extractants to enhance its properties. By resin impregnation with D2EHPA and Cyanex 272, not only the selective indium recovery was reached but also the resin capacity was increased approx. two times. The best loading and elution performance were shown by Cyanex 272‐impregnated Lewatit® TP 208, increasing the indium purity in the eluate from 0.75 % to 85 %.
Separation of Indium from Acid Sulfate‐Containing Solutions by Ion Exchange with Impregnated Resins
Indium separation using ion exchange resins from acidic polymetallic and very diluted solutions are investigated. Since the selectivity of commercial ion exchange resins have proven to be too low for an effective separation from solutions with high content of other metals, Lewatit® TP 208 was impregnated with common extractants to enhance its properties. By resin impregnation with D2EHPA and Cyanex 272, not only the selective indium recovery was reached but also the resin capacity was increased approx. two times. The best loading and elution performance were shown by Cyanex 272‐impregnated Lewatit® TP 208, increasing the indium purity in the eluate from 0.75 % to 85 %.
Separation of Indium from Acid Sulfate‐Containing Solutions by Ion Exchange with Impregnated Resins
Vostal, Radek (author) / Pavón, Sandra (author) / Kaiser, Doreen (author) / Bertau, Martin (author)
Chemie Ingenieur Technik ; 93 ; 1859-1867
2021-11-01
9 pages
Article (Journal)
Electronic Resource
English
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