scholarly journals Solvent Extraction of Tb(III) from Hydrochloric Acid Solution with Cyanex 272, Its Mixture and Ionic Liquid

2018 ◽  
Vol 56 (12) ◽  
pp. 870-877 ◽  
Author(s):  
Chang Geun Oh ◽  
Man Seung Lee
Keyword(s):  
Ionic Liquid ◽  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Cyanex 272

Solvent extraction of iron(III) from hydrochloric acid solution by sulphoxides and their mixtures

1977 ◽  
Vol 30 (10) ◽  
pp. 2297
Author(s):  
BB Misra ◽  
SR Mohanty
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Acid Concentration ◽  
Hydrochloric Acid Solution ◽  
Tributyl Phosphate ◽  
Metal Ion ◽  
Extractant Concentration ◽  
The Individual

The extraction of iron(III) from hydrochloric acid solution by the series of sulphoxides (R2SO) from dipentyl to didecyl sulphoxide in 1,1,2-trichloroethane has been studied. At a given strength of the extractant, extraction increases initially with increase in the acid concentration to a maximum at 8 M and decreases thereafter. Increase in H+ at constant Cl- strength or increase in Cl- at a given H+ increases the extraction. Under otherwise identical conditions, extraction increases with increase in the extractant concentration. The extracted species would appear to be HFeCl4,2R2SO. A mixture of two sulphoxides or of a sulphoxide and tributyl phosphate extracts the metal ion more than the sum of extractions due to the individual components.

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