Recovery of 137Cs from Laboratory Waste using Solvent Extraction with Sodium Tetraphenylboron (TPB)

被引：11

作者：

Dash, Ashutosh ^{[1
]}

Ram, Ramu ^{[1
]}

Pamale, Yugandhara A. ^{[1
]}

Deodhar, Archana S. ^{[2
]}

Venkatesh, Meera ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Radiopharmaceut Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Isotope Applicat Div, Bombay 400085, Maharashtra, India

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2012年 / 47卷 / 01期

关键词：

distribution ratio (D); radioactive waste; separation of Cs-137; sodium tetraphenylboron (TPB); solvent extraction; AMMONIUM MOLYBDOPHOSPHATE; CESIUM REMOVAL; SILICOTITANATES; RADIOCESIUM; TECHNOLOGY; STRONTIUM; EXCHANGE; WATER; CROWN;

D O I：

10.1080/01496395.2011.614317

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The paper describes a method for the recovery of Cs-137 from an aqueous radioactive laboratory waste solution containing Cs-137 (2 mu g/mL) in the presence of high concentration of Na+ using solvent extraction technique. The method comprises of adjustment of pH to the acidic range (pH = 2), contacting the aqueous radioactive solution with sodium tetraphenylboron (TPB) in nitrobenzene, whereby Cs-137 binds with tetraphenylboron anions and gets separated. Results of this investigation indicate that Cs-137 could be efficiently and selectively extracted from an aqueous solution media containing high concentration of Na+ under mildly acidic pH into an organic phase and back extracted with small volume of 3M HNO3, thus enabling concentration. The proposed method was successfully applied in real samples.

引用

页码：81 / 88

页数：8

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