The n-Octyldodecylsulfoxide(ODSO)-carbon tetrachloride extracting uranium(VI)

The n-Octyldodecylsulfoxide(ODSO)-carbon tetrachloride extracting uranium(VI) 1 first-author 1 1 2 Department of Chemisty, Shandong University, Jinan 250100 Department of Chemisty, Shandong University, Jinan 250100 Shanghai Institute of Nuclear Research,the Chinese Academy of Sciences, Shanghai 201800 Shanghai Institute of Nuclear Research,the Chinese Academy of Sciences, Shanghai 201800 The liquid-liquid extraction behavior of uranium(VI) from nitric acid aqueous solution with n-octyldodecylsulfoxide(ODSO) has been studied over a wide range of conditions. The extracted species appear to be UO 2 (NO 3 ) 2 •2ODSO. It was found that the extraction was increased with increasing sodium nitrate concentration. Extracting also increases with increasing extractant concentration. The influence of temperature and nitric acid concentration on extraction equilibrium was also investigated and the enthalpy of the extraction reaction was obtained. n-Octyldodecylsulfoxide Solvent extraction Uranium(VI), References Pai S A , Shukla J P , Khopkar P K et al . J Radioanal Chem , 1978 , 42 : 323 J Radioanal Chem Yang Y Z , Sun S X , Yang Y H et al . J Radioanal Nucl Chem , 1999 , 241 ( 1 ): Lett 331 J Radioanal Nucl Chem Chakravortty V , Dash K C , Mohanty S R . Radiochimica Acta , 1986 , 40 : 89 Radiochimica Acta Bao B R , Bao Y Z , Sheng C H et al . J Radioanal Nucl Chem , 1992 , 162 ( 2 ): Artic 391 J Radioanal Nucl Chem Cotton F A , Francis R . J Am Chem Soc , 1960 , 82 : 2986 J Am Chem Soc Yang Y Z , Yang Y H , Jiang X C et al . J Radioanal Nucl Chem , 1999 , 240 ( 1 ): Lett 335 J Radioanal Nucl Chem Shen C H , Bao B R , Bao Y Z et al . J Radioanal Nucl Chem , 1994 , 178 ( 1 ): Artic 91 J Radioanal Nucl Chem Yang Y Z , Yang Y H , Xong J et al . J Radioanal Nucl Chem , 1999 , 241 ( 1 ): Lett 235 J Radioanal Nucl Chem Dong L Y . Analytical chemistry of uranium (in Chinese) . Beijing : Atomic Energy Press , 1982 , 158 Analytical chemistry of uranium (in Chinese) Gao Z L , Sun S X , Shen J L . Solvent extraction chemistry (in Chines) . Beijing : Science Press , 1991 , 65 Solvent extraction chemistry (in Chines) O615.11, O652.62, TL283 Supported by Key Laboratory for Colloid and Interface Chemistry of Education Ministry, Shandong University 1999-12-09 2000-08-01 2021-02-05 2000 Nuclear Science and Techniques 3 11