Premium
Selective liquid‐phase hydrogenation of 2,6‐dinitrotoluene with platinum catalysts
Author(s) -
Kut Oemer M.,
Yücelen Füsun,
Gut Günther
Publication year - 1987
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280390205
Subject(s) - catalysis , chemistry , platinum , yield (engineering) , kinetics , hydrogen , slurry , liquid phase , phase (matter) , adsorption , mass transfer , inorganic chemistry , chemical engineering , chromatography , organic chemistry , thermodynamics , materials science , metallurgy , physics , quantum mechanics , engineering
The kinetics of the consecutive liquid‐phase hydrogenation of 2,6‐dinitrotoluene to 2‐amino‐6‐nitrotoluene and 2,6‐diaminotoluene was studied in ethanol with 0·5% Pt/Al 2 O 3 as a catalyst using a stirred tank slurry reactor in the temperature and pressure ranges of 313 to 348 K and 0·5 to 10 MPa, respectively. The intrinsic kinetics of the consecutive reaction can be described by a Langmuir‐Hinshelwood type model with non‐competitive adsorption of organic species and hydrogen on the catalyst surface. At 313 K a maximum yield for the intermediate 2‐amino‐6‐nitrotoluene of over 95% can be achieved if heat and mass transfer effects are eliminated.