The extraction rules investigation of mental (Li, Na, K, Mg, Ca) ion in salt lake brine by TBP-FeCl3 extraction system

The extraction rules of mental ions in salt lake brine by TBP-FeCl3 extraction system were investigated. The theoretical calculations and experiments were conducted in order to explicit the behavior of cations Li+ , Na+ , K+ , Mg2+ and Ca2+ in extraction process. The results of theoretical calculations indicated the bond length of M-Cl and M-O in extraction complexes was K+ > Na+ > Li+. The results of experiments suggested LiCl had much stronger effect on P=O in TBP than NaCl and KCl and the form of FeCl4- was easier in CaCl2 solution than MgCl2 under the same concentration.

Automated summary

By investigating the TBP-FeCl3 extraction system, it was found that the behavior of cations Li+, Na+, K+, Mg2+ and Ca2+ in the extraction process varies, with LiCl having the strongest impact on P=O in TBP and FeCl4- being more readily formed in CaCl2 solution. Theoretical calculations and experiments were conducted to determine the extraction rules of mental ions and their interactions in the extraction process.