Kinetics of Mercury(II) Transport Through a Bulk Liquid Membrane Containing Calix[4]arene Derivatives as Carrier

2003 ◽  
Vol 38 (7) ◽  
pp. 1649-1664 ◽  
Author(s):  
H. Korkmaz Alpoguz ◽  
Shahabuddin Memon ◽  
Mustafa Ersoz ◽  
Mustafa Yilmaz
Keyword(s):  
Liquid Membrane ◽  
Bulk Liquid ◽  
Bulk Liquid Membrane ◽  
Kinetics Of

Study on the Transport Kinetics of Hg2+Through Calix‐Oligomer Bulk Liquid Membrane

2005 ◽  
Vol 42 (5) ◽  
pp. 577-586 ◽  
Author(s):  
H. Korkmaz Alpoguz ◽  
Ahmet Kaya ◽  
Aydan Yilmaz ◽  
Mustafa Yilmaz
Keyword(s):  
Liquid Membrane ◽  
Transport Kinetics ◽  
Bulk Liquid ◽  
Bulk Liquid Membrane ◽  
Kinetics Of

Study on the transport selectivity and kinetics of amino acids through di(2-ethylhexyl) phosphoric acid-kerosene bulk liquid membrane

2004 ◽  
Vol 234 (1-2) ◽  
pp. 101-109 ◽  
Author(s):  
Ming Ma ◽  
Bo Chen ◽  
Xubiao Luo ◽  
Hao Tan ◽  
Dingsheng He ◽  
...  
Keyword(s):  
Amino Acids ◽  
Phosphoric Acid ◽  
Liquid Membrane ◽  
Bulk Liquid ◽  
Bulk Liquid Membrane ◽  
Kinetics Of

Transport Kinetics of Hg2+Through Bulk Liquid Membrane Using Calix[4]arene Ketone Derivative as Carrier

2005 ◽  
Vol 39 (4) ◽  
pp. 799-810 ◽  
Author(s):  
H. Korkmaz Alpoguz ◽  
Shahabuddin Memon ◽  
Mustafa Ersoz ◽  
Mustafa Yilmaz
Keyword(s):  
Liquid Membrane ◽  
Transport Kinetics ◽  
Bulk Liquid ◽  
Bulk Liquid Membrane ◽  
Kinetics Of

scholarly journals RECOVERY OF NI2+ BY DI-(2-ETHYLHEXYL) PHOSPHORIC ACID (HDEHP)

2009 ◽  
Vol 12 (3) ◽  
pp. 40-50
Author(s):  
Phuong Mai Tran ◽  
Canh Huy Nguyen ◽  
Thang Manh Ngo
Keyword(s):  
Organic Phase ◽  
Liquid Membrane ◽  
Extraction Yield ◽  
Membrane Extraction ◽  
Bulk Liquid ◽  
Bulk Liquid Membrane ◽  
Liquid Membrane Extraction ◽  
Initial Ph ◽  
Decreasing Ph ◽  
Kinetics Of

This paper dealts with solvent and bulk liquid membrane extraction of Ni2+ from its chloride solutions by HDEHP in n-heptane. Effects of extraction time, initial pH and Ni2+ concentration in the feed as well as HDEHP concentration in the organic phase were investigated. Solvent extraction equilibrium was established within 10 minutes. Ni2+ showed to be extracted into the organic phase preferentially as Ni(DEHP), complexes. The Ni2+ extraction yield decreased with increasing initial Ni2+ concentration, with decreasing pH and/or HDEHP concentration. The later is not only due to shifting equilibrium of Nils extraction reaction, but also due to concurent extraction of HCI. Results of bulk liquid membrane extraction could be described by the kinetics of interfacial pseudo-first order reactions. Observed rate constants were determined ⁓ 2,30.10-2 ⁒ 2,68.10-2 min-1 for concentration range [Ni2+]0 ⁓ 10-3 ⁒ 10-2 mol/l.

Effect of kinetic synergist on transport of copper(II) through a liquid membrane containing P507 in kerosene

2001 ◽  
Vol 79 (8) ◽  
pp. 1213-1219 ◽  
Author(s):  
Dingsheng He ◽  
Ming Ma ◽  
Hui Wang ◽  
Pandeng Zhou
Keyword(s):  
Activation Energy ◽  
Liquid Membrane ◽  
Copper Ions ◽  
Bulk Liquid ◽  
Liquid Membranes ◽  
Bulk Liquid Membrane ◽  
First Order ◽  
Pseudo First Order ◽  
Feed Phase ◽  
Kinetics Of

A new kinetic synergism system for copper(II) transport through a bulk liquid membrane containing mono(2-ethyhexyl)-2-ethyhexyl phosphate and Manoxol OT (OT) was examined. The influence of stripping agent, anion, pH in feed phase, and carrier concentration were investigated. The kinetics of Cu(II) transport could be analyzed in the formalism of two consecutive irreversible first-order reactions, considering both extraction and stripping. The pseudo-first-order apparent rate constants of interfacial reactions in membrane transport are determined by altering the temperature. The activation energy values are 38.1 kJ mol–1 for extraction and 32.8 kJ mol–1 for stripping. The experiments demonstrated that Manoxol OT is a good kinetic synergist for Cu(II) transport through liquid membranes in this study. The kinetic synergism of OT for extraction of Cu2+ ions is analyzed.Key words: copper ions, kinetic synergist, liquid membrane.

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