Catalysts for selective hydrogenation of aromatic nitrocompounds and hydrocarbons

  • U. N. Otzhan Al-Farabi Kazakh National University
  • A. K. Kurmansitova Al-Farabi Kazakh National University
  • L. R. Sassykova Al-Farabi Kazakh National University
  • A. A. Serikkanov Al-Farabi Kazakh National University
  • A. S. Kenzhebekov Al-Farabi Kazakh National University
  • E. B. Starikov Chalmers University of Technology

Abstract

The liquid-phase hydrogenation of nitrocompounds and aromatic hydrocarbons at the elevated pressure of hydrogen on the mono- and bimetallic supported catalysts was studied. The optimumtechnological parameters of reactions for obtaining a high yield of target products were determined. It was shown that the mechanism of transforming aromatic nitro compounds – hydrogenation and it was identical for all solvents. It was studied the influence of the added hydrogenation reaction product (p-aminophenol) during p-nitrophenol hydrogenation for determination the cause of reducing of velocity of hydrogenation. It was revealed that the monometallic Rh/Al2O3 or bimetallic catalysts of Rh-Pt/Al2O3 composite are the most active catalysts for hydrogenation of aromatic hydrocarbons. The catalysts applied on aluminum oxide are more active and selective, than the catalysts applied on a silica gel.

Author Biographies

U. N. Otzhan, Al-Farabi Kazakh National University
Faculty of Chemistry and Chemical technology
A. K. Kurmansitova, Al-Farabi Kazakh National University
Faculty of Chemistry and Chemical technology
L. R. Sassykova, Al-Farabi Kazakh National University
Faculty of Chemistry and Chemical technology
A. A. Serikkanov, Al-Farabi Kazakh National University
Faculty of Chemistry and Chemical technology
A. S. Kenzhebekov, Al-Farabi Kazakh National University
Faculty of Chemistry and Chemical technology
E. B. Starikov, Chalmers University of Technology
Department of Physical Chemistry
Published
2016-12-26
How to Cite
OTZHAN, U. N. et al. Catalysts for selective hydrogenation of aromatic nitrocompounds and hydrocarbons. International Journal of Biology and Chemistry, [S.l.], v. 9, n. 2, p. 40-44, dec. 2016. ISSN 2409-370X. Available at: <http://ijbch.kaznu.kz/index.php/kaznu/article/view/259>. Date accessed: 24 apr. 2019. doi: https://doi.org/10.26577/2218-7979-2016-9-2-40-44.