The preparation of caprolactam

Details The preparation of caprolactam The preparation of caprolactam

C - Chemistry, Metallurgy

07

D

C07D 223/10 (2006.01) C07D 201/08 (2006.01)

Patent

CA 2176741

A process is proposed for manufacturing cyclic lactams by allowing aminocarbozyGc acid nitrites to react with water. This is done in the liquid phase in the presence of heterogeneous catalysts based ou ntanium dioxide, zirconium ozide, cerium oxide and aluminium oxide.

L'invention concerne un procédé de préparation de lactames cycliques par réaction de nitriles d'acide aminocarboxylique avec de l'eau. La réaction s'effectue en phase liquide en présence de catalyseurs hétérogènes à base de dioxyde de titane, d'oxyde de zircone, d'oxyde cérique et d'oxyde d'aluminium.

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