Phosphoric acid recovery from concentrated aqueous feeds by a mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP): extraction data and modelling

被引：30
作者：
Assuncao, M. Campos [1 ,2 ]
Cote, G. [1 ]
Andre, M. [1 ]
Halleux, H. [2 ]
Chagnes, A. [1 ,3 ]
机构：
[1] PSL Res Univ, Chim ParisTech CNRS, Inst Rech Chim Paris, 11 Rue Pierre & Marie Curie, F-75005 Paris, France
[2] Prayon, Rue Joseph Wauters 144 A, B-4480 Engis, Belgium
[3] Univ Lorraine, CREGU, UMR CNRS 7359, GeoRessources, 2 Rue Doyen Roubault, F-54518 Vandoeuvre Les Nancy, France
来源：
RSC ADVANCES | 2017年 / 7卷 / 12期
关键词：
LIQUID-LIQUID EQUILIBRIUM; SOLVENT-EXTRACTION; BUTYL PHOSPHATE; URANIUM VI; TRIBUTYL-PHOSPHATE; EXCESS PROPERTIES; PHASE-EQUILIBRIA; WATER ACTIVITY; DIBUTYL ETHER; SYSTEM;
D O I：
10.1039/c6ra25440c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This paper reports experimental data about the extraction of phosphoric acid from concentrated aqueous feeds (3 to 14 M H3PO4) by the mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP) at 25 degrees C: distribution ratios of H3PO4 and water, and change of phase volume ratio during extraction. Then, a simple model based on the extraction isotherms of H3PO4 and water as well as on the mass balance of these two compounds is developed in the case of the mixture of 90% wt DIPE and 10% wt TBP that corresponds to the solvent used at the industrial scale for the production of purified phosphoric acid.
引用
收藏
页码：6922 / 6930
页数：9
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