Solvent extraction of Zn(II) by Cyanex 923 and its application to a solid-supported liquid membrane system

2001 ◽  
Vol 76 (3) ◽  
pp. 298-302 ◽  
Author(s):  
Francisco José Alguacil ◽  
Susana Martínez
Keyword(s):  
Solvent Extraction ◽  
Liquid Membrane ◽  
Membrane System ◽  
Supported Liquid Membrane ◽  
Cyanex 923

scholarly journals Non-Dispersive Extraction of Ge(IV) from Aqueous Solutions by Cyanex 923: Transport and Modeling Studies

2019 ◽  
Author(s):  
Hossein Kamran Haghighi ◽  
Mehdi Irannajad ◽  
Maria Teresa Coll ◽  
Ana Maria Sastre
Keyword(s):  
Oxalic Acid ◽  
Liquid Membrane ◽  
Membrane System ◽  
Solution Chemistry ◽  
Supported Liquid Membrane ◽  
P Value ◽  
Flat Sheet ◽  
Cyanex 923 ◽  
Model Curve ◽  
Oxalic Acid Concentration

The transport of germanium from an aqueous solution containing oxalic acid was studied using a flat sheet supported liquid membrane (FSSLM) system. Cyanex 923 immobilized in a polytetrafluoroethylene membrane was employed as a carrier. The solution chemistry and related diagrams were applied to study the transport of germanium. The effectual parameters such as oxalic acid, the carrier, and strip reagent concentrations were evaluated in this study. Based on the results, the oxalic acid concentration of 0.075 mol/L and the carrier concentration of 20 %v/v were the condition in which the efficient germanium transport occurred. Among strip reagents tested, NaOH had the best efficiency to transport germanium through the supported liquid membrane system. Furthermore, the permeation model was obtained to calculate the mass transfer resistances. According to the results, the values of 1 and 1345 s/cm were evaluated for Δm and Δf, respectively. The model curve showed that the P value reached a steady state at higher concentrations of the carrier because the viscosity governed the transport phenomenon.

Solvent extraction of Cu(II) by LIX 54-100 and its application to a solid supported liquid membrane system

2000 ◽  
Vol 2000 (10) ◽  
pp. 479-481 ◽  
Author(s):  
Juan Carlos Bermejo ◽  
Manuel Alonso ◽  
Ana María Sastre ◽  
Francisco José Alguacil
Keyword(s):  
Solvent Extraction ◽  
Liquid Membrane ◽  
Membrane System ◽  
Supported Liquid Membrane

scholarly journals Copper recovery in a bench-scale carrier facilitated tubular supported liquid membrane system

2010 ◽  
Vol 46 (1) ◽  
pp. 67-73 ◽  
Author(s):  
S. Makaka ◽  
M. Aziz ◽  
A. Nesbitt
Keyword(s):  
Sherwood Number ◽  
Liquid Membrane ◽  
Copper Ions ◽  
Membrane System ◽  
Copper Recovery ◽  
Supported Liquid Membrane ◽  
Shell Side ◽  
Copper Solution ◽  
Mobile Carrier ◽  
Double Pipe

The extraction of copper ions in a tubular supported liquid membrane using LIX 984NC as a mobile carrier was studied, evaluating the effect of the feed characteristics (flowrate, density, viscosity) on the feedside laminar layer of the membrane. A vertical countercurrent, double pipe perspex benchscale reactor consisting of a single hydrophobic PVDF tubular membrane mounted inside was used in all test work. The membrane was impregnated with LIX 984NC and became the support for this organic transport medium. Dilute Copper solution passed through the centre pipe and sulphuric acid as strippant passed through the shell side. Copper was successfully transported from the feedside to the stripside and from the data obtained, a relationship between Schmidt, Reynolds and Sherwood number was achieved of.

Sign in / Sign up

Export Citation Format

Share Document