Selectivity tuning options in hydrogenation of m-chloronitrobenzene to m-chloroaniline over mono- and bimetallic supported Pt catalysts

TitleSelectivity tuning options in hydrogenation of m-chloronitrobenzene to m-chloroaniline over mono- and bimetallic supported Pt catalysts
Publication TypeJournal Article
Year of Publication2012
AuthorsMane, RB, Potdar, AS, Nadgeri, JM, Biradar, NS, Rode, CV
JournalIndustrial & Engineering Chemistry Research
Volume51
Issue48
Pagination15564-15572
Date PublishedDEC
ISSN0888-5885
Abstract

Supported monometallic (Pt, Ni,) and bimetallic (Ni-Pt) catalysts were prepared for the selective liquid phase hydrogenation of m-chlronitrobenzene to m-chloroaniline (m-CAN). It was found that the use of sodium carbonate as an additive substantially reduced the extent of dehydrohalogenation in the case of monometallic, 1% Pt/C catalyst, to give the highest selectivity of 96% to m-CAN. Ni-Pt bimetallic catalyst although showed almost complete selectivity (>99%) to m-chloroaniline; its activity was several fold lower than that of 1% Pt/C Na2CO3 system. However, compared with Ni monometallic catalyst, bimetallic Ni-Pt showed higher activity and selectivity due to the presence of electron rich surface metallic Pt stabilized by Ni having lower ionization potential compared with Pt.

DOI10.1021/ie301363x
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)2.206
Divison category: 
Chemical Engineering & Process Development