C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 201/08 (2006.01)
Patent
CA 2337326
The invention concerns a method for cyclizing hydrolysis of an aminonitrile compound into a lactam in the presence of a catalyst. More particularly, it concerns a method for cyclizing hydrolysis of an aminonitrile compound in the presence of a macroporous particulate catalyst resulting from deposit/impregnation of an oxygen-containing compound on a macroporous support such as alumina. The invention is particularly useful for preparing .epsilon.-caprolactam by cyclizing hydrolysis of aminocapronitrile.
L'invention concerne un procédé d'hydrolyse cyclisante d'un composé aminonitrile en lactame en présence d'un catalyseur. Elle se rapporte plus particulièrement à un procédé d'hydrolyse cyclisante d'un composé aminonitrile en présence d'un catalyseur particulaire macroporeux obtenu par dépôt/imprégnation d'un composé oxygéné sur un support macroporeux tel que l'alumine. L'invention s'applique notamment à la préparation d'.epsilon.- caprolactame par hydrolyse cyclisante de l'aminocapronitrile.
Brunelle Jean-Pierre
Seigneurin Aline
Sever Lionel
Rhodia Fiber And Resin Intermediates
Robic
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