Effect of diluents on the extraction of uranium (VI) with N-octanoyl-2-methylpiperidine

RADIOCHEMISTRY, RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE

Effect of diluents on the extraction of uranium (VI) with N-octanoyl-2-methylpiperidine

XIANG Qun，

BAO Bo-Rong，

QIAN Qun，

SHAO Hua

Nuclear Science and Techniques

Vol.14, No.3

pp.168-170

Published in print 01 Aug 2003

CLC：O615,O615.11

28000

The extraction of uranium (VI) from nitric acid solution with N-octanoyl-2-methylpiperidine (OMPPD) in eight diluents and the dependence of distribution ratio on temperature and concentrations of both aqueous nitric acid and OMPPD were investigated. The interaction among OMPPD, the extracted species and diluent has been discussed. The experiments show that the extraction ability of OMPPD decreases gradually for eight diluents in the following order: benzene, toluene, n-octane, sulfonated kerosene, cyclohexane, carbon tetrachloride, 1,2-dichloroethene and chloroform. It cannot be interpreted only on the basis of polarity of diluents.

N-octanoyl-2-methylpiperidineDiluentsSolvent extractionUranium (VI)

References

[1]

Sun G X, Han J T, Bao B R et al. Nucl Sci Technol, 1998, 9: 115

[2]

Han J T, Sun G X, Bao B R et al. J Ratioanal Nucl Chem, 1999, 241: 215

[3]

Thiolit G, Musikas G. Solv Extr Ion Exch, 1989, 7: 813

[4]

Shao H, Han J T, Sun G X et al. J Radioanal Nucl Chem, 2000, 243: 831

[5]

Xiang Q, Bao B R, Li Z et al. J Radioanal Nucl Chem, 2001, 250: 577

[6]

Komasawa I, Otake T, Ogawa Y. J Chem Eng Japan, 1984, 17: 410

[7]

Sun S X, Li Y, Yang Y H et al. Acta Chimica Sinica, 1996, 54: 1101

[8]

Xiang Q, Bao B R, Cao W G. Nucl Tech (in Chinese), 2002, 25: 57

[9]

Dong L Y. Analytical chemistry of uranium (in Chinese), Beijing: Atomic Energy Publishing House, 1982, 58