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Preparation and Characterization of a Solid Acid Catalyst from Commercial Niobia Hydrate
Author(s) -
Frank B.,
Yildiz A.,
Habel D.,
Schubert H.,
Schomäcker R.
Publication year - 2006
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200500380
Subject(s) - hydrate , catalysis , chemistry , acetic acid , solid acid , clathrate hydrate , mass transport , inorganic chemistry , chemical engineering , organic chemistry , engineering , engineering physics
A commercially available niobia hydrate, which is an industrial intermediate in the production of pure niobia, was prepared, characterized, and tested as a solid acid catalyst. The gas phase esterification of acetic acid with ethanol was used as a simple model reaction for the determination of the acidity and the catalytic activity. The kinetic evaluation of the experiments includes an estimation of mass transport limitation as well as a mechanistic study.