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以磷酸三丁酯 (TBP)、三烷基胺 (73 0 1)为络合剂 ,分别采用甲苯、异丙基甲酮、正辛醇、煤油作为稀释剂对丁二酸稀溶液进行络合萃取。结果表明 :混合型络合剂对丁二酸稀溶液进行萃取 ,可取得满意的分离效果 ,平衡分配系数D高达 15 .2 8;讨论了丁二酸溶液初始浓度、溶液pH值以及温度对络合萃取相平衡分配系数的影响。利用傅立叶红外光谱仪测定了负载有机相中萃合物的结构 ,对三烷基胺络合萃取丁二酸稀溶液的机理进行了探讨
Using tributyl phosphate (TBP) and trialkylamine (73 0 1) as the complexing agent, the dilute solution of succinic acid was complexed with toluene, isopropyl ketone, n-octanol and kerosene respectively extraction. The results showed that the mixed complexing agent could extract the succinic acid solution with satisfactory separation efficiency, the equilibrium partition coefficient (D) was as high as 15.28. The effects of initial concentration of succinic acid solution, solution pH value and temperature on Effect of Co-extraction Phase Equilibrium Partition Coefficient. The structure of the extract in the organic phase was measured by Fourier transform infrared spectroscopy (FTIR), and the mechanism of tributyl amine complexed extraction of succinic acid solution was discussed