Study on the three-phase extraction system of TBP-kerosene/H3PO4-H2O

被引：0
|
作者：
Fu, X [1 ]
Shi, JH [1 ]
Zhu, Y [1 ]
Hu, ZS [1 ]
机构：
[1] Qingdao Inst Chem Technol, Qingdao 266042, Peoples R China
来源：
SOLVENT EXTRACTION AND ION EXCHANGE | 2002年 / 20卷 / 02期
关键词：
TBP; three-phase extraction; H3PO4;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The phase behavior and phase composition of TBP-kerosene/H3PO4-H2O three-phase extraction system have been investigated and compared with the two-phase system without the diluent. In TBP-kerosene/H3PO4-H2O system, the formation of the third phase is related only to the equilibrium concentration of H3PO4 in the bottom (aqueous) phase (C-H3PO4,(b) > 9.8 mol/L). The composition of the middle phase is not a function of only the C-H3PO4,C-b, but also relates to the initial concentration of TBP. At C-H3PO4 = 9.8 mol/L, the composition of the extracted complex in the middle phase is (TBP) (.) (H3PO4) (.) (H2O)(0.5), which is the same as that of the organic phase in two-phase system.
引用
收藏
页码：241 / 250
页数：10
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