B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 23/40 (2006.01) B01J 21/04 (2006.01) B01J 23/06 (2006.01) B01J 23/36 (2006.01) B01J 23/74 (2006.01) B01J 23/889 (2006.01) C07C 209/16 (2006.01) C07D 295/023 (2006.01) C07C 211/10 (2006.01) C07C 211/14 (2006.01)
Patent
CA 2146906
The present invention relates to improved reductive amination catalysts useful in the production of alkyleneamine compositions having lower levels of cyclic components. Although typical reductive amination catalysts contain nickel or nickel-rhenium on carriers such as alumina, silica, silica-alumina and silica-titania, it has been discovered that by using carriers selected from the transitional aluminas, improvements are obtained in both selectivity to acyclic products and in activity of the catalysts.
La présente invention porte sur des catalyseurs améliorés pour amination par réduction, utiles pour la production de compositions d'alkylèneamines renfermant des constituants cycliques inférieurs. Bien que les catalyseurs habituels d'amination par réduction comportent du nickel ou du nickel-rhénium sur des supports comme l'alumine, la silice, la silice-alumine et la silice-oxyde de titane, on a découvert que l'utilisation de véhicules choisis parmi les alumines de transition permettait d'améliorer à la fois la sélectivité vis-à-vis des produits acycliques et l'activité des catalyseurs.
Sim & Mcburney
Union Carbide Chemicals & Plastics Technology Corporation
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