C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 201/16 (2006.01) C07D 201/08 (2006.01)
Patent
CA 2351655
The invention concerns a method for treating lactams. Said method enables in particular to modify the chemical nature of impurities contained in a medium containing lactams either for transforming them into non-troublesome compounds or extractable compounds in subsequent purifying operations. It consists in hydrogenating in the presence of ammonia the medium containing the lactam.
La présente invention concerne un procédé de traitement de lactames. Ce procédé permet notamment de modifier la nature chimique des impuretées contenues dans un milieu contenant des lactames soit pour les transformer en composés non gênants soit en composés extractibles dans des opérations de purification ultérieures. Il consiste à réaliser une hydrogénation en présence d'ammoniac du milieu contenant le lactame.
Rhodia Polyamide Intermediates
Robic
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