RECOVERY OF INDIUM (III) FROM MIXED HYDROCHLORIC ACID - SULPHURIC ACID MEDIA BY SOLVENT EXTRACTION WITH CYANEX 301®

1992 ◽  
Vol 10 (5) ◽  
pp. 811-827 ◽  
Author(s):  
M. AVILA RODRIGUEZ ◽  
G. COTE ◽  
D. BAUER
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Sulphuric Acid ◽  
Acid Media ◽  
Cyanex 301

The separation of selenium from tellurium in hydrochloric acid media by solvent extraction with tri-butyl phosphate

1983 ◽  
Vol 9 (3) ◽  
pp. 381-392 ◽  
Author(s):  
Ying-Chu Hoh ◽  
Chih-Chien Chang ◽  
Wei-Li Cheng ◽  
I-Sine Shaw
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Media ◽  
Hydrochloric Acid Media

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).

scholarly journals Extraction of Palladium(II) from Hydrochloric Acid Solutions by Solvent Extraction with Cationic Mixtures

2017 ◽  
Author(s):  
Hoai Thanh Truong ◽  
Man Seung Lee ◽  
Seong Ho Son
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solutions ◽  
Extraction Behavior ◽  
Synergistic Enhancement ◽  
Alamine 336 ◽  
Hydrochloric Acid Solutions ◽  
Cyanex 301 ◽  
Synergistic Coefficient

Cyanex 301 and LIX 63 can seletively extract Pd(II) over Pt(IV) from strong hydrochloric acid solutions. Therefore, solvent extraction experiments have been performed by extractant mixtures containing either Cyanex 301 or LIX 63 and the extraction behavior of Pd(II) was compared. Among the mixture of Cyanex 301, the highest synergistic enhancement coefficient was achieved by mixing Cyanex 301 and TOPO. However, it was very diffiuclt to strip the Pd(II) from the loaded mixture. Among the mixture of LIX 63, the mixture of LIX 63 and Alamine 336/TOPO enhanced the extraction of Pt(II). Although the synergistic coefficient by Cyanex 301 + TOPO was higher than that by LIX 63 + Alamine 336, the Pd(II) in the loaded mixture of LIX 63 and Alamine 336 was easily stripped by thiourea.

scholarly journals Solvent extraction of Palladium (II) and effective separation of Palladium(II) and Platinum(IV) with synthetic sulfoxide MSO

2013 ◽  
Vol 49 (1) ◽  
pp. 57-63 ◽  
Author(s):  
L. Pan ◽  
X. Bao ◽  
G. Gu
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Organic Phase ◽  
Contact Time ◽  
Phase Ratio ◽  
Separation Coefficient ◽  
Mixed Solution ◽  
Acid Media ◽  
Effective Separation ◽  
Hydrochloric Acid Media

Extraction performances of Pd(II) and separation behaviors of Pd(II) and Pt(IV) were studied using a synthetic sulfoxide MSO as extractant from hydrochloric acid media. Pd(II) transferring was depended strongly on the MSO and HC1 concentration, phase ratio (O/A), contact time, and Pd(II) concentration in stock solution. By controlling MSO and HC1 concentration, Pd(II) and Pt(IV) could be separated effectively and the highest separation coefficient reached 758 when MSO and HC1 concentration were fixed at 25% (V/V) and 1.5 M, respectively. Pd(II) loaded in organic phase was stripped effectively with a mixed solution containing NH4C1 and ammonia solutes. The percentage stripping of Pd(II) was 95.1% using 3% (?) NH4C1 and 3 M NH3H2O.

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