Studies in Solvent Extraction and Supported Liquid Membrane for Platinum Recovery from Chloride Media by Tris(2-ethylhexyl) Phosphate

2017 ◽  
Vol 61 (1) ◽  
pp. 15-27
Author(s):  
Shweta Kumbhaj ◽  
Vandana Prabhu ◽  
Anand V. Patwardhan
2015 ◽  
Vol 1 (01) ◽  
pp. 54-60
Author(s):  
G Muthuraman

The liquid-liquid extraction (LLE) and supported liquid membrane (SLM) studies of reactive dyes namely Gold Yellow (GYHE-R) and Reactive Green HE 4BD (RGHE-4BD) from aqueous solution using Aliquot 336 as the carrier has been investigated. Polytetrafluoroethylene (PTFE) membrane with 0.5 μm pore size has been used after impregnated with Aliquot 336 in dichloromethane. In liquid liquid extraction the following parameters had been optimized; pH of feed, diluent, carrier , strip and dye concentration and the same parameters have been applied to supported liquid membrane (SLM) study to transport dye from aqueous solution.The main advantages SLM study is; the extraction and stripping as single stage process and low consumption of carrier in the membrane phase compared to the solvent extraction process. The other parameters such as transport time, stirring speed and mechanism of dye transport has also studied by SLM. The percentage of transport of dye and flux rate increases with increasing time. The stability of membrane is satisfactory over 5 days.


2016 ◽  
Vol 23 (1) ◽  
pp. 63-73 ◽  
Author(s):  
Feng-Chi YEN ◽  
Tien-Chin CHANG ◽  
Sawanya LAOHAPRAPANON ◽  
Yan-Ling CHEN ◽  
Sheng-Jie YOU

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