Choudhary, Vasant R. ; Sane, Mukund G. (1998) Poisoning of Pd-carbon catalysts by sulphur, chloro and heavy metal compounds in liquid phase hydrogenation of o-nitrophenol to o-aminophenol Journal of Chemical Technology and Biotechnology, 73 (4). pp. 336-340. ISSN 0142-0356
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1...
Related URL: http://dx.doi.org/10.1002/(SICI)1097-4660(199812)
Abstract
The poisoning of Pd-carbon (4.1% Pd) catalysts by thiophene, dichloroethane, mercuric chloride and lead, zinc and mercuric acetates at different concentrations (0-5000 g m-3) in the liquid phase hydrogenation of o-nitrophenol to o-aminophenol (at 308 K and H2 pressure of 1508 kPa) in a three-phase stirred slurry reactor has been investigated. The hydrogenation activity of the catalyst is drastically reduced due to the presence of these poisons in the reaction mixture, even at a very low concentration of poison (20 g m-3). Among the poisons, mercuric acetate was found to be the most potent.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Pd-carbon Catalyst; Liquid Phase Hydrogenation; O-nitrophenol; O-aminophenol; Catalyst Poisoning |
| ID Code: | 88515 |
| Deposited On: | 29 Mar 2012 04:36 |
| Last Modified: | 29 Mar 2012 04:36 |
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