Thermodynamics Study of Rhenium Solvent Extraction Process from Sulfuric Acid Medium

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• 作者：Shu-liang Zang ; Guo-sheng Zhao ; Hui-min Zhao ; Jun Li ; Da-wei Fang
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2016
• 出版时间：April 14, 2016
• 年：2016
• 卷：61
• 期：4
• 页码：1592-1596
• 全文大小：247K
• 年卷期：0
• ISSN：1520-5134

文摘

In the rhenium solvent extraction process, molalities of perrhenate after extraction were measured from 278.15 to 303.15 K at impurity ionic strength from 0.2 to 2.0 mol·kg^–1 in aqueous phase. Optimization condition of extraction was determined in this sulfuric acid medium. The standard extraction constants K⁰ at various temperatures were obtained by method of polynomial approximation. Thermodynamic quantities for the solvent extraction process were calculated.