8-羟基喹啉萃取La(Ⅲ)的机理

Extraction of Lanthanum with 8-Hydroxyquinoline

研究8-羟基喹啉的正庚烷溶液在盐酸介质中对3价稀土离子镧的萃取效应,探讨水相酸度、萃取剂浓度、Clˉ浓度、不同稀释剂等因素对萃取平衡的影响,并运用双对数斜率法确定8-羟基喹啉萃取La(Ⅲ)的机理.

The solvent extraction of La^3＋ from hydrochloric acid solutions was investigated using 8- Hydroxyquinoline as extractant. The effect of equilibrium of aqueous acidity on extraction of La^3＋ using 8- Hydroxyquinoline was discussed. The effects of extractant concentraction, different diluents and chloride ion on extraction reaction were also studied extracted species of 8-Hydroxyquinoline was With a double-logarithmic slope method, composition of the derived.