B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 38/12 (2006.01) C07D 201/08 (2006.01)
Patent
CA 2337327
The invention concerns a method for reactivating a catalyst for cyclizing hydrolysis of an aminonitrile for making lactams. More particularly, it concerns the reactivation of solid catalysts used in processes for producing lactams by cyclizing hydrolysis of aminonitriles. Said reactivating method consists in treating the spent catalyst at a temperature ranging between 300 ·C and 600 ·C with an oxidizing atmosphere.
La présente invention concerne un procédé de régénération d'un catalyseur d'hydrolyse cyclisante d'un aminonitrile pour la fabrication de lactames. Elle se rapporte plus particulièrement à la régénération des catalyseurs solides utilisés dans les procédés de production de lactames par hydrolyse cyclisante d'aminonitriles. Ce procédé de régénération consiste à traiter le catalyseur usé ou en fin de cycle, à une température comprise entre 300 ~C et 600 ~C par une atmosphère oxydante.
Brunelle Jean-Pierre
Nedez Christophe
Rhodia Fiber And Resin Intermediates
Robic
LandOfFree
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