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The catalytic hydrogenation of adiponitrile to hexamethylenediamine over a rhodium/alumina catalyst in a three phase slurry reactor

✍ Scribed by S Alini; A Bottino; G Capannelli; R Carbone; A Comite; G Vitulli

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 155 KB
Volume: 206
Category: Article
ISSN: 1381-1169
DOI: 10.1016/s1381-1169(03)00449-7

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✦ Synopsis

Adiponitrile was hydrogenated to hexamethylenediamine in a three phase stirred slurry reactor at 353 K and 3 MPa using rhodium on ␥-alumina powder as a catalyst. Rhodium, with a very high metal dispersion, was deposited on the alumina support using the metal vapour synthesis technique. The performances of this supported catalyst were compared to those of one currently used in industrial processes (Raney Ni). The Rh/Al 2 O 3 catalyst showed interesting hexamethylenediamine selectivity and adiponitrile conversion. Both the temperature and pressure positively influenced conversion and selectivity, and under a certain pressure threshold the formation of hexamethylenediamine was negligible.

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