C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 67/20 (2006.01) C07C 67/22 (2006.01) C07C 69/34 (2006.01) C07C 69/44 (2006.01)
Patent
CA 2658399
The present invention relates to a process for the preparation of diesters from imide or dinitrile compounds. More particularly, said invention relates to a process for the preparation of diester compounds from dinitrile compounds by utilizing vapor phase hydrolysis of dinitrile compounds in the presence of alcohol for obtaining diester compounds. Still more particularly, said invention relates to a process for the preparation of diesters from branched dinitrile compounds such as methylglutaronitrile or the branched dinitrile compounds obtained as secondary products during the preparation of adiponitrile by hydrocyanation of butadiene.
La présente invention concerne un procédé de fabrication de diesters à partir de composés imides ou dinitriles. Elle se rapporte plus particulièrement à un procédé de fabrication de composés diesters à partir de composés dinitriles mettant en AEuvre une hydrolyse en phase vapeur de composés dinitriles en présence d'alcool pour obtenir des composés diesters. Elle concerne encore plus particulièrement un procédé de fabrication de diesters à partir de composés dinitriles ramifiés tels que le méthylglutaronitrile ou les composés dinitriles ramifiés obtenus comme sous produits dans le procédé de fabrication de l'adiponitrile par hydrocyanation du butadiène.
Jacquot Roland
Leconte Philippe
Marion Philippe
Rhodia Operations
Robic
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