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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.48A [2009] >
IJC-A Vol.48A(02) [February 2009] >
| Title: | Influence of rare earths on activity and selectivity of hydrogenation of chloronitrobenzene over PtM/C (M=La, Ce, Pr, Nd and Sm) catalysts |
| Authors: | Han, Xiaoxiang |
| Keywords: | Catalysts
Hydrogenation
Haloamines
Chloronitrobenzene
Rare earths
Cerium
Lanthanum
Neodymium
Praseodymium
Samarium |
| Issue Date: | Feb-2009 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl. ⁸ B01J23/10; B01J23/63; C07B35/00 |
| Abstract: | Hydrogenation of chloronitrobenzene has been studied over Pt/C and PtM/C catalysts (M= Sm, Pr, Ce, Nd and La) in ethanol at 303 K and normal pressure. The effect of substrate concentration and reaction temperature has also been investigated over PtCe/C catalyst. The hydrogenation has been carried out over Pt/C catalyst. The order of the hydrogenation of choloronitrobenzene is p>o>m, and that of the yield of chloroaniline is: p>o>m. The conversion of chloronitrobenzene is >99% and chloroaniline is the main product on hydrogenation over PtM/C catalysts. PtCe/C catalyst exhibits the best catalytic activity (TOF = 0.47 s⁻¹) and the highest yield of p-CAN (96.6 mol%). PtLa/C catalyst gives the best yield for m-chloroaniline (95.8 mol%) and o-chloroaniline (96.5 mol%). PtCe/C (0.1 wt%) catalyst exhibits good catalytic activity and stability on the hydrogenation of p-chloronitrobenzene. |
| Page(s): | 168-172 |
| ISSN: | 0376-4710 |
| Source: | IJC-A Vol.48A(02) [February 2009]
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