### 锂的新萃取体系研究

1. 中国科学院上海有机化学研究所
• 发布日期:1995-07-15

### Study on new extraction system for lithium

SHENG HUAIYU;LI BEILI;CHEN YAOHUAN;YUAN QUN;XU QINGREN;YAN JINYING;YAO JIEXING;YE WEIZHEN;LONG HAIYAN;DAI PUXING

• Published:1995-07-15

o-Arylazo-β-arylols (HA) were first time chosen as the extractants for lithium (Li^+) with the formation of chelating anion (LiA~2^-), which could be extracted into inactive solvents in the presence of a quaternary ammonium base (Q^+X^-). The mechanism of this chelation-ion association synergic extraction was discussed in detail. The dynamics data and the thermodynamics parameters and the structure of the extractable complexes were determined. It was shown that the new system exhibits excellent properities, especially the larger separation coefficient β~Li~/~Na than other systems hitherto issued.