EXTRACTION OF ZINC FROM SULFATE-SOLUTIONS WITH BIS(2-ETHYLHEXYL)PHOSPHORIC ACID IN THE PRESENCE OF TRI-NORMAL-OCTYLPHOSPHINE OXIDE

被引：19

作者：

JUANG, RS

CHANG, YT

机构：

[1] Department of Chemical Engineering, Yuan-Ze Institute of Technology, Nei-Li, Taoyuan

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1991年 / 30卷 / 11期

关键词：

D O I：

10.1021/ie00059a013

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The extraction of zinc from 0.5 M (Na,H,Zn)SO4 aqueous solution with bis(2-ethylhexyl)phosphoric acid (D2EHPA, HR) dissolved in kerosene has been studied at 25-degrees-C. The distribution data have been treated both graphically and numerically. The composition of the extracted species was determined to be ZnR2(HR) and ZnR2(HR)2 and the extraction constants of these species were also estimated. Finally, the effect of the presence of tri-n-octylphosphine oxide (TOPO) on the above extraction system was quantitatively analyzed by considering the greater interactions between D2EHPA and TOPO molecules in the organic phase.

引用

页码：2444 / 2449

页数：6

共 20 条

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[3]

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