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Ｋ． Ｓａｒａｎｇｉ，Ｂ． Ｐ． Ｒｅｄｄｙ和 Ｒ． Ｐ． Ｄａｓ进行了从浓度为１ｍｏｌ／Ｌ的氯化物溶液中溶剂萃取钴、镍的研究，使用的萃取剂为Ｃｙａｎｅｘ ２７２的钠盐，稀释剂为煤油，相改性剂为磷酸三丁酯（ＴＢＰ）。研究结果表明，钴、镍的萃取率随水相ｐＨ的升高而
K. Sarangi, B. P. Reddy and R. P. Das studied the solvent extraction of cobalt and nickel from 1 mol / L chloride solution. The extractant used was sodium salt of Cyanex 272, the diluent was kerosene, the phase modifier was tributyl phosphate (TBP) . The results show that the extraction rate of cobalt and nickel increases with the pH of aqueous phase