On the Principles of Modelling of Homogeneous−Heterogeneous Reactions in the Production of Fine Chemicals. A Case Study: Reductive Alkylation of Aromatic Amines

Autor:	Tapio Salmi, and Antti Vuori, Esko Tirronen, Juha Lehtonen
Rok vydání:	1998
Předmět:	chemistry.chemical_classification Chemistry Organic Chemistry Industrial scale Substituent Aromatic amine Alkylation Aldehyde Catalysis chemistry.chemical_compound Computational chemistry Homogeneous Organic chemistry Physical and Theoretical Chemistry Alkyl
Zdroj:	Organic Process Research & Development. 2:78-85
ISSN:	1520-586X 1083-6160
DOI:	10.1021/op970032f
Popis:	A kinetic model for the reductive alkylation of aromatic amines, which implies a combination of homogeneous and heterogeneous reactions, was developed. The kinetic model was combined with a reactor model for a semibatch reactor, traditionally used for the reductive alkylation on both laboratory and industrial scale. The system was modelled as a three-phase system, with mass-transfer limitations at the gas−liquid interface. The mass-transfer resistances at the outer surface of the catalyst and inside the catalyst were considered to be negligible, since very finely dispersed catalyst particles were used. The kinetic parameters were determined for a system containing an aromatic amine with one alkyl substituent and an aldehyde. The results revealed that it is possible to describe this kind of complex reaction system with very few parameters.
Databáze:	OpenAIRE
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