Ultrasound enhancement of dissolution kinetics of uranium oxides in supercritical carbon dioxide

被引：28
|
作者：
Trofimov, TI
Samsonov, MD
Lee, SC
Smart, NG
Wai, CM [1 ]
机构：
[1] Univ Idaho, Dept Chem, Moscow, ID 83844 USA
[2] Russian Acad Sci, VI Vernadsky Inst Geochem & Analyt Chem, Lab Radiochem, Moscow, Russia
[3] BNFL, Res & Technol, Sellafield CA20 1PG, Cumbria, England
来源：
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2001年 / 76卷 / 12期
关键词：
uranium oxides; supercritical fluid carbon dioxide; ultrasound; dissolution kinetics;
D O I：
10.1002/jctb.509
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The enhanced dissolution of uranium oxides by the application of ultrasound in supercritical fluid carbon dioxide containing dissolved 4,4-trifluoro-1-(2-thienyl)-1,3-butanedione and tributyl phosphate is demonstrated. Under conditions of 60 degreesC and 150 atm. the steady state dissolution of UO3 with sonification is increased by approximately 100%. Furthermore, the effect of adding hydrogen peroxide to the supercritical system above enables the lower oxides of uranium, UO2 and U3O8, to be extracted. (C) 2001 Society of Chemical Industry.
引用
收藏
页码：1223 / 1226
页数：4
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