Green separation and recovery of cobalt and nickel from sulphuric acid achieved by complexation-assisted solvent extraction

2022 ◽  
pp. 120343
Author(s):  
Ling Yuan ◽  
Hailun Yang ◽  
Pengge Ning ◽  
Jiawei Wen ◽  
Zhi Sun ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Sulphuric Acid ◽  
Green Separation ◽  
Cobalt And Nickel

scholarly journals Synergistic extraction of rhenium (VII) with mixtures of high-aliphatic alcohols and ketones from sulphuric acid media.

2020 ◽  
Vol 11 (3-2020) ◽  
pp. 51-54
Author(s):  
A. M. Dvornikova ◽  
◽  
A. G. Kasikov ◽  
Keyword(s):  
Solvent Extraction ◽  
Synergistic Effect ◽  
Sulphuric Acid ◽  
Extraction Efficiency ◽  
Aliphatic Alcohols ◽  
Synergistic Extraction ◽  
Acid Solutions ◽  
Acid Media ◽  
High Acid ◽  
Wide Range

Rhenium(VII) solvent extraction with synergistic mixtures of neutral extractants (octyl alcohols and ketones) from sulphuric acid media has been investigated. It was observed that the synergistic effect appeared under solvent extraction from high acid solutions, consisting ≥ 5 mol/L H2SO4.The synergistic coefficients were up to 2–2,3 providing 97,5–98,7% rhenium(VII) extraction efficiency at one SX step. High rhenium(VII) SX efficiency maintained in the wide range of extraction mixtures compositions (10–50 % v/v of ketone).

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