Solvent extraction behavior of some metal-1-(2-pyridylazo)-2-naphthol chelates

1960 ◽  
Vol 23 ◽  
pp. 367-369 ◽  
Author(s):  
S SHIBATA
Keyword(s):  
Solvent Extraction ◽  
Extraction Behavior

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

scholarly journals Solvent extraction separation of zirconium(IV) from succinate media with N-n-octylaniline

2006 ◽  
Vol 71 (3) ◽  
pp. 223-234 ◽  
Author(s):  
M.M. Rajmane ◽  
B.M. Sargar ◽  
S.V. Mahamuni ◽  
M.A. Anuse
Keyword(s):  
Solvent Extraction ◽  
Binary Mixture ◽  
Extraction Behavior ◽  
Quantitative Extraction ◽  
Extraction Separation ◽  
Ph Range

The extraction behavior of zirconium(IV) from succinate (0.01 - 0.03 M) medium (25 mL) with 10 mL 3 % N-n-octylaniline in xylene was investigated. The pH range 3.7 - 5.0 was effective for the quantitative extraction of zirconium(IV). Zirconium(IV) was back extracted with 0.5 M HNO3 (3 x 5 mL). The method was free from interferences of a large number of cations and anions. Zirconium(IV) was separated from associated elements in its binary mixture with Mo(VI), Nb(V), Re(VII), La(III), Ti(IV), Th(IV) and Al(III). The proposed method was applied to synthetic mixtures. The results of analysis indicate that trace amounts of zirconium( IV) could be separated effectively from higher amounts of other elements. The method is simple, selective, rapid and eco-friendly.

Solvent Extraction Behavior of Plutonium (IV) Ions in the Presence of Simple Hydroxamic Acids

2007 ◽  
Vol 25 (6) ◽  
pp. 723-745 ◽  
Author(s):  
M. J. Carrott ◽  
O. D. Fox ◽  
C. J. Maher ◽  
C. Mason ◽  
Robin J. Taylor ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Hydroxamic Acids ◽  
Extraction Behavior

scholarly journals Molten solvent extraction behavior of palladium with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone at 60 °C

2007 ◽  
Vol 5 (3) ◽  
pp. 912-921 ◽  
Author(s):  
Bo Peng ◽  
Xiaojun Guo ◽  
Xuefen Mao ◽  
Jinzhang Gao
Keyword(s):  
Solvent Extraction ◽  
Precious Metal ◽  
Extraction Efficiency ◽  
Equilibrium Temperature ◽  
Paraffin Wax ◽  
Analysis Method ◽  
Extractant Concentration ◽  
Slope Analysis ◽  
Extraction Behavior ◽  
Ph Range

AbstractThe solvent extraction behavior of precious metal palladium with 1-phenyl-3-methyl-4-benzoyl-5-pyrazone (PMBP) into molten paraffin wax has been studied in the temperature range from 55 to 75 °C. The complex consisting of PMBP and palladium was extracted into molten wax phase in the pH range from 1.0 to 3.5 at 60 °C. The extraction efficiency was up to 97% at the experimental pH. The stoichiometry of the extracted species of palladium was determined on the basis of slope analysis method. The effects of time to achieve equilibrium, temperature, and extractant concentration on the extraction were discussed. The thermodynamic data indicate that the extraction is an endothermic reaction and the increase of temperature promotes the extraction of palladium into molten paraffin wax and the extraction of palladium with PMBP is entropy controlled at high temperatures.

Sign in / Sign up

Export Citation Format

Share Document