磷酸三丁酯络合萃取醋酸的研究

Study on Tributyl Phosphate Complexing and Extracting Acetic Acid

以磷酸三丁酯(TBP)为络合剂,正辛醇为稀释剂,共同组成油相。研究了它们在不同条件下对醋酸溶液的萃取率。在一定条件下,随着醋酸浓度的增大,萃取率先增大后减小;随着油相与水相的体积比或络合剂与稀释剂体积比的增大,醋酸萃取率也增大;醋酸乙酯和三烷基胺均没有TBP对醋酸的萃取能力强。

Oil phase consists of tributyl phosphate(TBP)which is a complexant and octanol which is a diluent.Their extracting ratio of acetic acid is discussed in different conditions.It is discovered that the extracting ratio of acetic acid increases firstly and then decreases with the concentration of acetic acid and it also arises with the vol-ume ratio of oil phase and water phase or complexant and diluent.The extracting ability of acetic ether or trialkyl-amine is worse than TBP.