Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (9): 977-986.DOI: 10.11944/j.issn.1000-0518.2015.09.150112

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Green and Clean Technology for Preparation of p-Aminophenol by Catalytic Hydrogenation of Nitrobenzene

ZHAO Lijunabc,CHENG Haiyangbc*(),WANG Chengxuea*(),ZHAO Fengyubc   

  1. aSchool of Chemical Engineering,Changchun University of Technology,Changchun 130012,China
    bState Key Laboratory of Electroanalytical Chemistry,Changchun Institute ofApplied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    cLaboratory of Green Chemistry and Process,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2015-03-23 Accepted:2015-05-29 Published:2015-08-31 Online:2015-08-31
  • Contact: CHENG Haiyang,WANG Chengxue
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21273222, No.21202159)

Abstract:

p-Aminophenol(PAP) is an important chemical and pharmaceutical intermediate. Its synthesis from nitrobenzene(NB) has obvious advantages from the view of raw material, and the short reaction process as well as the low energy consumption. However, conventional liquid acid is usually used as catalyst in this reaction, which brings serious corrosion of equipment. Alkali is used to neutralize acid after the reaction to produce a great deal of solid waste of salt. Therefore, green technology for preparation of PAP from NB is of great significance, and becomes one of the hot research topics in these years. Most interests have been focused on searching for benign alternative to conventional liquid acid, and some progresses have been achieved, such as solid acid, acidic ionic liquid, Lewis acid, CO2-H2O system, and bi-functional catalysts with solid acid supported metal nanoparticles. Herein, we review the latest progresses on the hydrogenation of NB to PAP with these environmental benign acid catalysts and give the future development prospects.

 

Key words: nitrobenzene, p-aminophenol, selective hydrogenation, solid acid, acidic ionic liquid, Lewis acid, CO2-H2O system

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