Solvent extraction of salicylates. IV. Solvent extraction of iron(III) by substituted salicylic acids

1971 ◽  
Vol 24 (9) ◽  
pp. 1839 ◽  
Author(s):  
J Aggett ◽  
ES Ow
Keyword(s):  
Solvent Extraction ◽  
Tributyl Phosphate ◽  
Extraction Behaviour ◽  
Salicylic Acids

The solvent extraction of iron(III) into tributyl phosphate by a number of substituted salicylic acids has been examined. It has been concluded that there is no difference in the mode of extraction by the different acids, in each case the ex-tracted species having the formula Fe(R- Sal)(R-HSal), and that the observed differences in extraction behaviour are most probably associated with the strengths of extracting acids.

Kinetics of solvent extraction of zirconium from acidic raffinate using tributyl phosphate

2020 ◽  
pp. 1-12
Author(s):  
Snehasis Dutta ◽  
Ashok N Bhaskarwar ◽  
S. Mukhopadhyay ◽  
K.T. Shenoy
Keyword(s):  
Solvent Extraction ◽  
Tributyl Phosphate ◽  
Kinetics Of

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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