SOLVENT EXTRACTION OF PLATINUM-GROUP METALS FROM HYDROCHLORIC ACID SOLUTIONS BY DIALKYL SULPHOXIDES

2002 ◽  
Vol 20 (3) ◽  
pp. 359-374 ◽  
Author(s):  
John S. Preston ◽  
Anna C. du Preez
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Platinum Group Metals ◽  
Acid Solutions ◽  
Hydrochloric Acid Solutions ◽  
Platinum Group

Separation of iron from zirconium in concentrated hydrochloric acid solutions by solvent extraction

1986 ◽  
Vol 17 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Chih-Chien Chang ◽  
Tai-Ming Chiu ◽  
Ying-Chu Hoh ◽  
Wei-Ko Wang
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solutions ◽  
Hydrochloric Acid Solutions

Enhanced extraction and separation of zirconium(IV) and hafnium(IV) with 3-phenyl-4-benzoyl-5-isoxazolone in presence of various neutral organophosphorus extractants

2007 ◽  
Vol 95 (5) ◽  
Author(s):  
K. Janardhan Reddy ◽  
A. Varada Reddy ◽  
B. S. Shaibu ◽  
M. L. P. Reddy
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solutions ◽  
Extraction And Separation ◽  
Extraction Behavior ◽  
Hydrochloric Acid Solutions ◽  
Organophosphorus Extractants

Various 3-phenyl-4-aroyl-5-isoxazolones, namely, 3-phenyl-4-benzoyl-5-isoxazolone (HPBI), 3-phenyl-4-(4-fluorobenzoyl)-5-isoxazolone (HFBPI) and 3-phenyl-4-(4-toluoyl)-5-isoxazolone (HTPI) were synthesized and examined with regard to the solvent extraction behavior of Zr(IV) and Hf(IV) from hydrochloric acid solutions. The results demonstrated that Zr(IV) and Hf(IV) extracted into chloroform with 3-phenyl-4-aroyl-5-isoxazolones (HA), as ZrOA

Study on Properties of Extraction Palladium(II) with the New Synthesized Material

2013 ◽  
Vol 774-776 ◽  
pp. 1342-1345 ◽  
Author(s):  
Shao Ping Feng ◽  
Zhao Long Huang ◽  
Wei Liu ◽  
Zi Jing Li ◽  
Yan Jiang ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Contact Time ◽  
Acid Solutions ◽  
Quantitative Extraction ◽  
Hydrochloric Acid Solutions ◽  
Thiourea Concentration ◽  
Extraction Parameters ◽  
Hcl Concentration

In this study, the solvent extraction of Pd(II) from hydrochloric acid solutions was investigated using the new synthesized material, 2-ethylhexyl benzothiazolyl sulfide (EHBTS) which was dissolved in xylene. Pd(II) was strongly extracted by 7% EHBTS in a lower concentration hydrochloric acid solution. Extraction parameters of Pd(II), including EHBTS concentration in different diluents, contact time of aqueous and organic phases, organic/aqueous (O/A) phase ratio and HCl concentration of aqueous phase, were studied. Quantitative extraction of Pd(II) occurred at 0.1 mol.L-1 of HCl concentration, 7% of EHBTS concentration, 1.0 of O/A, 40 min of contact time. In addition，the percentage stripping of Pd(II) could be more than 98% when thiourea concentration was 0.8 mol.L-1. EHBTS can be used more than 8 as extractant to extract of Pd(II) from hydrochloric acid solutions.

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