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KINETIC STUDY OF NICKEL(II) EXTRACTION FROM CHLORIDE SOLUTIONS

机译:从氯化物溶液中萃取镍(II)的动力学研究

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The rate of nickel(II) extraction from aqueous chloride solutions by 2-ethylhexanal oxime (EHO) in dodecane has been studied as a function of the concentrations of extractant, metal and salt and of the equilibrium pH. The extraction kinetics have been carefully studied and a mechanism in agreement with the experimental results has been proposed for pH > 4. The limiting step is an interfacial reaction between a neutral nickel adsorbed species and a molecule of EHO.
机译:已经研究了十二烷中的2-乙基己醛肟(EHO)从氯化物水溶液中萃取镍(II)的速率与萃取剂,金属和盐的浓度以及平衡pH的关系。对于pH> 4,已经对萃取动力学进行了仔细研究,并提出了与实验结果相符的机理。限制步骤是中性镍吸附物质与EHO分子之间的界面反应。

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