Selective hydrogenation of m-chloronitrobenzene to m-chloroaniline over polyvinylpyrrolidone-stabilized Pt and Pt/Sn catalysts

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• 作者：Feng Li (1)
  Rui Ma (1)
  Hualin Song (2)
  Hua Song (1)
  Dezhi Yu (1)
  
  1. Provincial Key Laboratory of Oil & Gas Chemical Technology ; College of Chemistry & Chemical Engineering ; Northeast Petroleum University ; Daqing Heilongjing ; 163318 ; China
  2. Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province ; Mudanjiang Medical University ; Mudanjiang Heilongjing ; 157011 ; China
  
• 关键词：selective hydrogenation ; m ; chloronitrobenzene ; Pt catalysts ; Pt ; Sn catalysts ; catalysts modification
• 刊名：Russian Journal of Physical Chemistry A, Focus on Chemistry
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：89
• 期：5
• 页码：766-770
• 全文大小：209 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1531-863X

文摘

A Pt-polyvinylpyrrolidone (PVP) catalyst was synthesized via chemical reduction of platinum ions with hydrazine hydrate in a PVP/n-butanol/H2PtCl6 aqueous solution. Its catalytic activity was evaluated by the liquid-phase hydrogenation of m-chloronitrobenzene (m-CNB) to m-chloroaniline (m-CAN) under mild conditions (T = 303 K, p = 0.1 MPa). The as prepared catalyst exhibited higher activity and selectivity than prepared via conventional ethanol reduction with the same platinum load. The catalytic performance of PVP-Pt catalyst was remarkably improved by addition of 0.2 wt % Sn4+. The modification mechanism may be related with the interaction of Sn4+ with nitro group of m-CNB and -NH2 in m-CAN.