DEVELOPMENT AND VERIFICATION OF A NEW THERMODYNAMIC MODEL FOR SOLVENT EXTRACTION OF METAL IONS BASED ON THE K-VALUE METHOD

スポンサーリンク

概要

• 論文の詳細を見る

• A new thermodynamic model has been developed for solvent extraction equilibria using the K-value method. In this model, the activity coefficients of all solutes in both phases were caluculated by Edwards’ equation. The model provides a means for calculating the equilibrium constant of the extraction reaction from a few experimental measurements. Based on the calculated equilibrium constant, the model can predict the distribution coefficient at any pH, metal concentration and extractant concentration. The calculated values were insensitive to the values of the phase equilibrium constant of the extractant between the aqueous and the organic phases or the formation constant of the extracted metal species and the extractant in the aqueous phase.The calculated distribution coefficients of zinc in the ZnSO4-H2SO4-H2O-D2EHPA-kerosene system were in good agreement with those obtained experimentally. The calculated values for copper in the CuSO4-H2SO4-H2O-LIX65N-toluene system and nickel in the NiSO4-CH3COOH-NaOH-Kelex 100-xylene system were also found to be in very good agreement with those obtained from the literature.A simillar procedure is expected to be applicable for other solvent extraction systems involving alkaline solutions or anionic extractants.

• 社団法人 化学工学会の論文
• 1996-10-20

著者

• Lee E.

  Department Of Physics And Astronomy Univ. Of Manitoba

• SOHN H.

  Department of Metallurgical Engineering, University of Utah

• Lee M.

  Department Of Metallurgical Engineering University Of Utah

• Lee M.

  Department Of Biochemistry School Of Dentistry Kyungpook National University

• Lee M.

  Department Of Advanced Materials Science & Engineering Mokpo National University

• Sohn H.

  Department Of Metallurgical Engineering University Of Utah

関連論文

• The effect of meta-kaolin on the pozzolan reaction of lightweight porous concrete (第5回日韓資源リサイクル・材料科学に関する国際シンポジウム特集号)
• NaCl濃度を減少した培養液によるウシ体外受精卵の単精子受精率の向上と胚盤胞への発育
• Eugenol Inhibits Calcium Currents in Dental Afferent Neurons
• Curcumin Produces an Antihyperalgesic Effect via Antagonism of TRPV1
• 血清,リン酸およびグルコース無添加培地にアミノ酸を添加した場合のICRマウス由来2細胞期胚の発育の改善(臨床繁殖学)
• 3P1-20 二次元フォトニック結晶中のブラッグおよびハイブリッドギャップの観測(ポスターセッション)
• Effects of Wnt Mechanotransduction Pathway in the Progress of Osteoarthritis under Cyclic Tension(1A1 Micro & Nano Biomechanics I)
• 胚作出のための核移植計画から排除されたブタ卵子の単為生殖化による供給(臨床繁殖学)
• Inverted GaN p-i-n photodiodes with a buried p^+/n^ tunneling junction
• Measurement and Correlation of Drop-Size Distribution in Liquid-Liquid Emulsions Formed by High-Velocity Bottom Gas Injection
• Early Dexamethasone Relieves Trigeminal Neuropathic Pain
• Periodontal Pathogens and Gestational Diabetes Mellitus
• High-definition PIV Analysis on Vortex Shedding in the Cylinder Wake
• Central Neurocytoma : A Clinicopathological, Immunohistochemical and Ultrastructural Study of 7 Cases
• TED-AJ03-216 SIMULATION OF METAL MATRIX COMPOSITE SOLIDIFICATION IN THE PRESENCE OF COOLED FIBERS
• AN OSTOBLAST DIFFERENTIATION SPECIFIC GENE, DLX-5, DOWN-REGULATED OSTEOCALCIN GENE EXPRESSION
• Evidence for a One Dimensional Indirect Interaction between Localized Moments in Copper Phthalocyanine Iodide Mediated by Itinerant Electrons : II. LOW TEMPERATURE PROPERTIES OF SOLIDS : Magnetism : Cluster, Low Dimension
• Separation of Pt(IV) and Rh(III) from Chloride Solution by Solvent Extraction with Amine and Neutral Extractants
• DEVELOPMENT AND VERIFICATION OF A NEW THERMODYNAMIC MODEL FOR SOLVENT EXTRACTION OF METAL IONS BASED ON THE K-VALUE METHOD
• PHASE EQUILIBRIUM MEASUREMENTS FOR BINARY MIXTURES OF METHYL BENZOATE PLUS CO_2, C_2H_6, AND C_2H_4
• The Effect of Cross-linking Agent on Barbituric Acid-initiated Resin

もっと見る 閉じる

スポンサーリンク