Published August 1998 | Version v1
Journal article Metadata-only

The dodecyltolylsulfoxide extraction of uranium (VI)

Creators

  • 1. Academia Sinica, SH (China). Shanghai Inst. of Nuclear Research
  • 2. Shandong Univ., Jinan (China). Dept. of Chemistry

Description

The liquid-liquid extraction behavior of uranium (VI) from aqueous nitric acid media with dodecyltolylsulfoxide (DTSO) has been studied over a wide range of conditions. The extracted species appear to be UO2(NO3)2·2DTSO. It was found that the extraction was increased with increasing nitric acid concentration up to 5 mol/L HNO3 and then decreased, and the extraction of uranium (VI) decreased with increasing temperature. So it can be deduced that the process of extraction is exothermic and the enthalpy of the extraction obtained is ΔH = -16.3 kJ/mol

Additional details

Publishing Information

Journal Title
Nuclear Science and Techniques
Journal Volume
9
Journal Issue
3
Journal Page Range
p. 163-165
ISSN
1001-8042

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
29052878
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CHELATES; CHEMICAL COMPOSITION; CONCENTRATION RATIO; ENTHALPY; SOLVENT EXTRACTION; SULFOXIDES; TEMPERATURE DEPENDENCE; URANIUM; URANYL NITRATES
Descriptors DEC
ACTINIDE COMPOUNDS; ACTINIDES; COMPLEXES; ELEMENTS; EXTRACTION; METALS; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SEPARATION PROCESSES; THERMODYNAMIC PROPERTIES; URANIUM COMPOUNDS; URANYL COMPOUNDS