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Journal
2007 | 5 | 3 | 912-921
Article title

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

Content
Title variants
Languages of publication
EN
Abstracts
EN
The 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. [...]
Publisher

Journal
Year
Volume
5
Issue
3
Pages
912-921
Physical description
Dates
published
1 - 9 - 2007
online
12 - 4 - 2007
Contributors
author
  • College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China
author
  • College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China
author
  • College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China
author
  • College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China, jzgao@nwnu.edu.cn
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-007-0008-x
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