摘要
利用经验式ε_P=(a-1)/[1+0.46(1-P)],处理含多醚液-液萃取体系的数据,考察该类体系中冠醚的内结构、冠醚的侧基、冠醚浓度、有机溶剂、锂盐阴离子、锂盐浓度等因素对锂的热力学同位素效应的影响。
The published data up to now concerning polyether-lithium liquid-liquid extraction systems, can be summarized by the equation, εp= (α-1) /[1+0.46(1-P)] ,where a denotes the isotope separation factor, P--the ratio of thelithium concentration in the organic phase to the initial concentration of crown ethers. εp,the enrichment coefficient as P=100%. Based on the changes in εp, P,α and D(distribution ratio),the functions of factors such as polyethers structure, polyether's side group, polyether's concentration, organic solvent,negative ion of lithium salt and lithium salts concentration,are discussed and reported.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1989年第3期142-148,共7页
Journal of Nuclear and Radiochemistry
关键词
冠醚
锂同位素
液-液萃取
Crown ethers, Lithium isotopes, Isotope effect,sotope separation, Liquid-liquid extraction.
