一种从锂云母提锂母液中分离铯铷的萃取体系及方法
By using a composite extraction system in lithium extraction mother liquor from lepidolite, which includes t-BAMBP and TiOA combined with diluents 260# solvent oil and D80 solvent oil, the problem of low cesium-rubidium separation coefficient is solved, achieving efficient and low-cost cesium-rubidium separation, suitable for industrial applications of low-grade resources.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING UNIV OF TECH
- Filing Date
- 2024-02-18
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the separation coefficients of Cs+ and Rb+ are low, making the separation of cesium and rubidium resources difficult and costly, which limits their application scope. Furthermore, traditional extractants are not effective in separating low-grade resources.
A composite extraction system, consisting of 4-tert-butyl-2-(α-methylbenzyl)phenol (t-BAMBP) and triisooctylamine (TiOA) combined with binary diluents 260# solvent oil and D80 solvent oil, was used to separate cesium and rubidium from lithium mica mother liquor. The extraction process was optimized by adjusting the concentration and volume ratio.
It significantly improves the separation coefficient of cesium and rubidium, reduces production costs, achieves highly selective extraction and separation of cesium and rubidium, is suitable for low alkalinity and low concentration conditions, reduces waste alkali pollution, and is suitable for industrial applications.
Smart Images
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