期刊论文详细信息
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
EXTRACTION EQUILIBRIUM OF MOLYBDENUM(VI) WITH 2-ETHYLHEXYL PHOSPHONIC ACID MONO-2-ETHYLHEXYL ESTER
FUMIYUKI NAKASHIO1  TERUO TSUNEYUKI1  KAZUO KONDO1  YOSHINOBU SATO1  FERNANDO VALENZUELA1 
[1] Department oj Organic Synthesis, Kyushu University
关键词: Extraction;    Equilibrium;    Rare Metal;    Molybdenum;    PC-88A;   
DOI  :  10.1252/jcej.20.317
来源: Maruzen Company Ltd
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【 摘 要 】

References(21)Cited-By(17)The extraction equilibrium of molybdenum(VI) from nitric, hydrochloric and sulfuric acid solution with 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester dissolved in w-heptane was examined at 303 K. It was clarified that molybdenum(VI) was extracted with the extractant (HR) according to the following equation, in low concentration range of the metal. MoO2+2+2(HR)2→←MoO2R2·2HR+2H+The extraction equilibrium constants were obtained. The experimental results were interpreted quantitatively by taking account of the equilibrium concentration of a cationic species of molybdenum(VI) in aqueous solution.

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