Liquid-liquid extraction of metal salts from acidic solutions using amine salts: Derivation of a formula for D o/a

2010 ◽  
Vol 80 (3) ◽  
pp. 269-295 ◽  
Author(s):  
K. van Ipenburg
Keyword(s):  
Liquid Extraction ◽  
Metal Salts ◽  
Acidic Solutions ◽  
Liquid Liquid Extraction ◽  
Amine Salts

Liquid-liquid extraction of Nd+3 and Eu+3 from aqueous medium using oxytetracycline in dichloromethane

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shabnam Shahida ◽  
Faisal Hayat ◽  
Akbar Ali ◽  
Muhammad Imran Khan ◽  
Shagufta Zafar ◽  
...  
Keyword(s):  
Sea Water ◽  
Liquid Extraction ◽  
Equilibration Time ◽  
Analysis Method ◽  
Acidic Solutions ◽  
Slope Analysis ◽  
Liquid Liquid Extraction ◽  
Extraction Parameters ◽  
Conjugate Base ◽  
Radiometric Technique

Abstract Liquid-liquid extraction system consisting of oxytetracycline (HOTC) in dichloromethane was developed for extraction of Nd+3 and Eu+3 from acidic solutions using radiometric technique. Various extraction parameters such as pH, equilibration time and metals concentration were optimized. Slope analysis method was used to study the composition of product and was found to be M(OTC)3 [here M=Nd+3 or Eu+3 and OTC = conjugate base of HOTC]. Among cations Al+3 and Fe+3 while among anions F− effected the extraction of these metals. Higher separation factor of these metals was found with many others. The method was successfully applied on spiked sea water.

Platinum Extraction from Spent Catalysts by TOPO Utilizing RSM Technique

2012 ◽  
Vol 548 ◽  
pp. 186-192 ◽  
Author(s):  
Hesam Hassan Nejad ◽  
Mohammad Kazemeini ◽  
Moslem Fattahi
Keyword(s):  
Extraction Process ◽  
Liquid Extraction ◽  
Metal Salts ◽  
Trioctylphosphine Oxide ◽  
Alkaline Metal ◽  
Salting Out ◽  
Design Expert ◽  
Liquid Liquid Extraction ◽  
Spent Catalysts ◽  
Rsm Technique

In this research, data on liquid-liquid extraction of platinum from commercial spent catalysts by trioctylphosphine oxide (TOPO) in toluene were experimentally obtained. Alkaline metal salts were used to optimize the separation process. Best Salting-out effect was obtained by KCl which extracted up to 90% of platinum utilizing TOPO. Furthermore, extraction percentages of Pt and Al depending upon different factors were investigated. It was observed that the extraction process was kinetically fast and achieving the equilibrium time took less than 30 seconds. Optimized points obtained utilizing response surface methodology (RSM) by the “Design Expert” software in order to minimize the separation factor of platinum to aluminum.

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