Synergistic and selective extraction of Cd²⁺ from acidic solution containing Cd²⁺, Co²⁺, Ni²⁺ by triisooctylamine (TIOA) and tributyl phosphate (TBP)

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• 作者：Ebru Sonmez^a ; Fatih Sonmez^a ; Recep Ali Kumbasar^a ; Volkan Eyupoglu^b ; ^{volkan@karatekin.edu.tr}
• 关键词：Synergistic solvent extraction ; Acidic solutions ; Triisooctyl amine ; Tributyl phosphate
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2012
• 期刊代码：P29_1226086x
• 类别：ce
• 出版时间：25 July, 2012
• 卷：18
• 期：4
• 页码：1286-1292
• 文件大小：669 K

摘要

Selective and synergistic extraction of cadmium from acidic iodine solutions containing Cd²⁺, Co²⁺ and Ni²⁺using solvent extraction (SX) technique is presented in this study. The study has highlighted the importance of main and synergistic extractants composition. The mixtures have evident synergistic effects on Cd²⁺ with a synergistic enhancement factor of 2.22. The various experimental parameters were studied to determine the optimum extraction and stripping conditions of Cd²⁺. Under optimum conditions, the maximum extraction efficiency (99.7%) was achieved when using 1.5%(v/v) TIOA and 0.5%(v/v) TBP in dichloromethane within 5 min. Extracted Cd²⁺ was stripped effectively from the organic phase using 2.0 mol/L NaOH solution.