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投稿时间：2017-11-07 修订日期：2017-11-08 录用日期：2017-11-09 网络发布日期：2018-03-20
投稿时间：2017-11-07 修订日期：2017-11-08 录用日期：2017-11-09 网络发布日期：2018-03-20
中文摘要: 研究了t-BAMBP萃取钾铷的机理。以斜率法研究了分配比D与pH以及ROH浓度的关系，证明该反应为阳离子交换反应，萃合物组成为MOR?ROH(o)(M为Rb 、K )，萃取反应式为M (a) 2ROH(o) OH-(a)?MOR?ROH(o) H2O。对钾、铷的饱和负载有机相进行了红外光谱分析，与空白有机相比，负载有机相的波峰强度降低，位置发生偏移，说明在碱性溶液中，被萃取的M 与H 发生阳离子交换反应生成酚酸盐。在特定的萃取条件下，铷的萃取饱和容量为4.5 g/L，t-BAMBP具有较强的萃取铷的能力。
Abstract:Extraction mechanism of rubidium and potassium with 4-tert-butyl-2-(α-methylbenzyl)-phenol (t-BAMBP) was studied. Relationship between distribution ratio (D) and pH/concentration of ROH was investigated by slope method, which shows a reaction of cationic exchange, structure of extractant is MOR?ROH(o)(M representing Rb /K ), and extraction reaction is M (a) 2ROH(o) OH-(a)?MOR?ROH(o) H2O. The infrared spectrums of organic phase and loaded organic phase of potassium and rubidium were analyzed. Peak intensity drops and position shifts, indicating that H changes into phenol salts after replaced by M ion in cationic exchange reaction. Extraction capacity of rubidium is 4.59 g/L under the specific extraction conditions, which indicates that t-BAMBP has a strong ability to extract rubidium.
keywords: t-BAMBP extraction mechanism rubidium potassium
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基金项目:中央高校基本科研业务费专项资金资助项目（230201606500078）
引用文本：
王国栋,邢鹏,王成彦.t-BAMBP萃取钾铷机理研究[J].有色金属（冶炼部分）,2018(4):39-41.
Wang Guo-dong,Xing Peng,Wang Cheng-yan.Study on Extraction Mechanism of Rubidium and Potassium with t-BAMBP[J].Nonferrous Metals (Extractive Metallurgy),2018(4):39-41.
王国栋,邢鹏,王成彦.t-BAMBP萃取钾铷机理研究[J].有色金属（冶炼部分）,2018(4):39-41.
Wang Guo-dong,Xing Peng,Wang Cheng-yan.Study on Extraction Mechanism of Rubidium and Potassium with t-BAMBP[J].Nonferrous Metals (Extractive Metallurgy),2018(4):39-41.
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