Published May 2008 | Version v1
Journal article Metadata-only

Research on extraction of UO22+ by sec-nonylphonoxy acetic acid

Creators

  • 1. Department of Chemistry, Shanghai Univ., Shanghai (China)
  • 2. Department of Chemistry, Tongji Univ., Shanghai (China)

Description

The extraction behavior and mechanism of UO22+ by sec-nonylphonoxy acetic acid(CA-100) is reported. The influence of acidity of aqueous phase and extractant concentration on extraction is examined. The experiments found that at pH 3.0-4.0 and 0.01 mol/L CA-100 the extraction proceeds very well. The extraction reached 100% at pH 3.85. The bonding mode was analyzed by infrared spectrum analysis. It is shown that COO- is involved in the bonding and extraction mechanism is anion exchange reaction. The equation of extraction reaction at acidic condition is also presented. (authors)

Additional details

Publishing Information

Journal Title
Uranium Mining and Metallurgy
Journal Volume
27
Journal Issue
2
Journal Page Range
p. 102-105
ISSN
1000-8063

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
42023155
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Descriptors DEI
ACETIC ACID; CONCENTRATION RATIO; DISTRIBUTION FUNCTIONS; INFRARED SPECTRA; ION EXCHANGE; PH VALUE; REACTION KINETICS; REACTOR KINETICS EQUATIONS; SOLVENT EXTRACTION; SOLVENTS; TEMPERATURE DEPENDENCE
Descriptors DEC
CARBOXYLIC ACIDS; DIMENSIONLESS NUMBERS; EQUATIONS; EXTRACTION; FUNCTIONS; KINETICS; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; SEPARATION PROCESSES; SPECTRA

Optional Information

Notes
5 figs., 1 tab., 6 refs.