JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | |
KINETICS OF SOLVENT EXTRACTION OF COPPER(II) WITH 2-ETHYLHEXANAL OXIME | |
KATSUTOSHI INOUE1  YOSHIHIRO NAKASHIMA1  YOSHINARI BABA1  | |
[1] Department of Applied Chemistry, Saga University | |
关键词: Extraction; Extraction Kinetics; Copper(II); 2-Ethylhexanal Oxime; Non Chelating Oxime; Chloride Media; | |
DOI : 10.1252/jcej.21.363 | |
来源: Maruzen Company Ltd | |
【 摘 要 】
References(14)Cited-By(4)The kinetics of solvent extraction of copper(II) from aqueous sodium chloride solution with 2-ethylhexanal oxime in toluene was investigated, along with the aqueous distribution and the interfacial adsorption equilibrium of the extractant. 2-Ethylhexanal oxime was found to have rather high aqueous solubility and interfacial activity. The extraction rate was found to have a first-order dependence with respect to the concentration of neutral copper(II)-dichloro complex, CuCl2, and a second-order dependence with respect to that of the extractant. From these concentration dependencies of the reactant species, the extraction rate was inferred to be controlled by desorption of the final 1:2 metal:reagent complex from the interface brought about by substitution with the extractant molecule.
【 授权许可】
Unknown
【 预 览 】
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