Tetravalent uranium extraction by HDEHP in kerosene from phosphate medium

被引：15

作者：

Daoud, JA

Zeid, MM

Aly, HF

机构：

[1] Hot Laboratories Centre, Atomic Energy Authority, 13759, Cairo

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 1997年 / 15卷 / 02期

关键词：

D O I：

10.1080/07366299708934474

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The extraction of U(IV) by di-2-ethylhexyl phosphoric acid (HDEHP) in kerosene from phosphoric acid was measured spectrophotometrically.The effect of extractant, phosphoric acid, uranium, Fe(II) and Fe(III) concentrations on the extraction process were separately investigated. The effect of different reagents and temperature on the stripping of U(IV) were also tested. The results obtained showed that the extraction increases with the increase in HDEHP and Fe(III) concentrations while it decreases with the increase in phosphoric acid, uranium and Fe(II) concentration. The use of high phosphoric acid concentration as strip solutions at low temperature was found to give good stripping results.

引用

页码：203 / 217

页数：15