Improved metal-ligand complex catalyzed processes

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 45/50 (2006.01) B01J 31/02 (2006.01) B01J 31/18 (2006.01) B01J 31/40 (2006.01) B01J 38/74 (2006.01) C07C 45/80 (2006.01) C07C 47/02 (2006.01) C07C 47/228 (2006.01) C07C 47/277 (2006.01) C07C 67/347 (2006.01) C07C 69/716 (2006.01) C07D 209/46 (2006.01) C07D 333/22 (2006.01) C07F 9/02 (2006.01) C07F 9/145 (2006.01) C07F 9/6574 (2006.01)

Patent

CA 2239594

This invention relates to a method of stabilizing a metal-organopolyphosphite ligand complex catalyst against deactivation in a process which comprises reacting one or more reactants in the presence of a metal-organopolyphosphite ligand complex catalyst and optionally free organopolyphosphite ligand to produce a reaction product fluid comprising one or more products, which method comprises conducting said process in the presence of one or more free heterocyclic nitrogen compounds sufficient to prevent and/or lessen deactivation of the metal-organopolyphosphite ligand complex catalyst.

Procédé de stabilisation d'un catalyseur constitué d'un complexe métal-ligand organopolyphosphite pour empêcher sa désactivation dans un procédé consistant à faire réagir un ou plusieurs réactifs en présence d'un catalyseur constitué d'un complexe métal-ligand organopolyphosphite et d'un ligand organopolyphosphite éventuellement libre de façon à obtenir un fluide produit par une réaction constitué d'un ou de plusieurs produits. Le procédé consiste à effectuer cette opération en présence d'un ou plusieurs composés d'azote hétérocycliques, en quantité suffisante pour prévenir et/ou diminuer la désactivation du catalyseur constitué d'un complexe métal-ligand organopolyphosphite.

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