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本文用单液滴法考察了Co(Ⅱ)浓度、pH、萃取剂浓度以及温度和介质对HDEHP萃取Co(Ⅱ)速率的影响。实验结果表明,萃取反应机理为两步界面连续反应。文中对应用动力学因素提高Co(Ⅱ)、Ni(Ⅱ)的分离效率也作了简要的讨论。
The effect of Co (Ⅱ) concentration, pH, extractant concentration and temperature and medium on Co (Ⅱ) extraction rate of HDEHP was investigated by single droplet method. The experimental results show that the extraction reaction mechanism is two-step continuous interface reaction. In this paper, the application of kinetic factors to improve the Co (Ⅱ), Ni (Ⅱ) separation efficiency is also briefly discussed.