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本文以二庚基亚砜为萃取剂,研究了从盐酸介质中萃取铑(Ⅲ)的动力学,考察了水相氯离子浓度、氢离子浓度、有机相亚砜浓度以及温度等因素对萃取速度的影响。运用参数估值法、借助电子计算机计算了金属萃取一级正逆反应的表观速度常数,建立了该萃取过程速度的数学模型。根据动力学研究的结果,讨论了亚砜萃铑(Ⅲ)的机理。最后探讨了加速该取过程的可能性。
In this paper, the extraction kinetics of rhodium (Ⅲ) from hydrochloric acid was studied using diheptyl sulfoxide as extractant. The effects of factors such as chloride ion concentration, hydrogen ion concentration, sulfoxide concentration and temperature on the extraction rate Impact. By using the method of parameter estimation, the apparent velocity constant of the forward and reverse first-order reaction of metal extraction was calculated by computer, and the mathematical model of the extraction speed was established. Based on the kinetic studies, the mechanism of sulfoxide extraction of rhodium (Ⅲ) was discussed. Finally, the possibility of speeding up the process is explored.