胺类萃取过程中有机相含水量的变化

The Change of Water of Organic Phase in Extraction Process with Amine

本文通过有机相含水量的变化,研究甲基三烷基铵盐氯化物(N263)-仲辛醇-煤油体系在萃取过程中微乳状液的形成与破乳,并根据核磁共振谱峰的变化,讨论了水在有机相中的状态。

During the last three decades, solvent extraction of inorganic compounds has been become an extensively investigated field from theoretical and practical point of view. But the importance of the role of water in the extraction process has not been much studied and many phenomena observed remain unexplained. In this paper, through the study change of the water contained in the organic phase of Trialkylmethyl ammonium (N263)-sec. octyl alcohol (ROH)-kerosine, we have suggested and proved that the formation of a W/O microemulsion in the organic phase. The extraction of rare earth ions by the N263-ROH-kerosine is a process of destruction of the microemulsion, thus emphasizing the importance of the role of water in the extraction process and providing a new approach to the mechnism of extraction.