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Catalytic hydrogenation of nitriles to amines

Glennie, Sarah. 2006. Catalytic hydrogenation of nitriles to amines. PhD Thesis, Cardiff University.

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Abstract

The adiponitrile hydrogenation reaction, relevant for the production of aminocapronittile and hexamemyldiamine precursors for Nylon 6 and Nylon 6, 6 respectively, has been investigated. Three different reactor systems were used trickle-bed reactor, fixed-bed gas-phase reactor and the stirred-tank autoclave reactor. This meant comparisons between flow system and batch process could be made. Supported metal catalysts were investigated as alternatives for the currendy industrially used Raney catalyst. Precious metals, specifically rhodium, were compared with the base metals nickel and cobalt on the basis of activity and selectivity. Mixed metal alloy catalysts were also prepared and comparisons drawn. Finally a range of supports were also tested. Both flow systems were found to be of limited use with problems attributed to the practical applications of the reactor systems. Using Autoclave activity data as a standard it was possible to define differences in activity between each of the catalysts prepared..

Item Type: Thesis (PhD)
Status: Unpublished
Schools: Chemistry
Subjects: Q Science > QD Chemistry
ISBN: 9781303209673
Date of First Compliant Deposit: 30 March 2016
Last Modified: 12 Feb 2016 23:12
URI: http://orca-mwe.cf.ac.uk/id/eprint/54626

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