酸性有机磷化合物尤其是二—2—乙基己基磷酸(DEHPA)是一种工艺性能优良的萃取剂,但由于它在不同条件下与金属结合的情况不同,从而使萃取过程复杂化,工业萃取过程中会出现乳化、凝胶和沉淀等现象而影响生产,因此,了解不同条件下金属-酸性有机磷化合物的组成和结构就显得重要起来。本文指出随着有机相金属浓度的 Acid organophosphorus compounds, especially di-2-ethylhexyl phosphate (DEHPA), is an extractant with excellent process performance. However, due to its different combination with metals in different conditions, so that the extraction process is complicated. The industrial extraction During the process, emulsification, gelation and precipitation will affect the production. Therefore, it is important to understand the composition and structure of metal-acidic organophosphorus compounds under different conditions. This paper points out that with the metal concentration of the organic phase