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Kinetic studies on the solvent extraction of uranium(VI) from phosphoric acid solution with HDEHP using laser‐induced optical fiber fluorimetry
Author(s) -
Jia WeiJie,
Zhou ZuMin,
He ADi,
Wang ZhiLin,
Qin QiZong
Publication year - 1989
Publication title -
acta chimica sinica english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 0256-7660
DOI - 10.1002/cjoc.19890070605
Subject(s) - chemistry , uranium , extraction (chemistry) , phosphoric acid , cyclohexane , fluorescence spectroscopy , fiber , solvent , analytical chemistry (journal) , fluorescence , inorganic chemistry , chromatography , organic chemistry , metallurgy , materials science , physics , quantum mechanics
The laser‐induced optical fiber fluorimetry has been used for the first time to analyse the concentration of uranium(VI) in the kinetic studies on the extraction of uranium(VI) between 0.5 mol L H 3 PO 4 solution and HDEHP‐cyclohexane system with Lewis cell. The effects of stirring speed, temperature and concentration of uranium(VI) and HDEHP on the rate of extraction were examined. These data show that the extraction rate of uranium(VI) in this system is controlled by the chemical reaction process at the interface. The rate equations and the rate constants of the forward and reverse extractions were obtained. The mechanism of the extraction has been discussed.