摘要
本文用TBP+MIBK(TM)的混合体系对磷酸进行萃取,比较了TM与TBP+煤油(TK)萃取磷酸过程萃取有机相的粘度和磷酸含量,研究了TM体系萃取磷酸的协同萃取效应以及萃取平衡。结果表明:在相同的温度和浓度下,MIBK的稀释作用比煤油好,用TM体系萃取磷酸的萃取有机相中磷酸含量可以达到很高,而不会出现三相,因此TM体系萃取磷酸优于TK体系;而且从萃取体系的粘度和萃取体系的磷酸含量看,TM都优于TK体系;TM体系萃取磷酸具有一定的协同效应。
In this paper, tributyl phosphate ＋ methyl isobutyl ketone（TM） was used to extract phosphoric acid（PA）, viscosities and concentration of P205 in TM ＋ PA were compared with that of in TBP ＋ Kerosene（TK） ＋ PA, and synergistic extraction effect and extraction equilibrium were also studied. The results showed that： there are more advantages for extracting PA with TM than with TK from viscosity and concentration of P2O5 of the extraction of organic phase; there are synergistic extraction effect with TM system extracting PA.
出处
《化工矿物与加工》
CAS
北大核心
2009年第11期10-13,共4页
Industrial Minerals & Processing
基金
国家科技支撑计划项目(2007BAE58B00)
重庆三峡学院资助项目(2008sxxyyb-16)
关键词
TBP
MIBK
磷酸
协同萃取
TBP
MIBK
phosphoric acid
synergistic extraction
