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| Study on Extraction Mechanism of Rubidium and Potassium with t-BAMBP |
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Received:November 07, 2017
Revised:November 08, 2017
Accepted:November 09, 2017
Published Online:March 20, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.04.009 |
| KeyWord:t-BAMBP; extraction mechanism; rubidium; potassium |
| Author | Institution |
| Wang Guo-dong |
北京科技大学 |
| Xing Peng |
北京科技大学 |
| Wang Cheng-yan |
北京科技大学 |
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| 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. |
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