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在 ( 3 0± 0 .5)℃下 ,用层流恒界面池研究了铒在 HBTMPTP-正庚烷 -0 .2 mol/ L( H,Na) Ac萃取体系中的传质动力学 .测定了该体系的界面张力 ,考察了水相酸度、萃取剂浓度、氯离子浓度、温度和比界面对萃取速率的影响 .实验表明 ,在本实验条件下 ,萃取过程属于扩散控制过程 .Cyanex3 0 2中的杂质具有动力学的协萃作用
The mass transfer kinetics of erbium in the HBTMPTP-n-heptane-0.2 mol / L (H, Na) Ac extraction system was investigated by a laminar constant interface cell at (3 0 ± 0 .5) The interfacial tension of the system was investigated, and the effects of aqueous phase acidity, extractant concentration, chloride ion concentration, temperature and specific surface area on the extraction rate were investigated. The experimental results show that the extraction process belongs to the diffusion control process under the experimental conditions. The impurities in the kinetic synergistic effect