C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 209/48 (2006.01) C07C 253/30 (2006.01)
Patent
CA 2265488
The invention concerns a process for simultaneously preparing 6- aminocapronitrile and hexamethylene diamine proceeding from a mixture which contains a phosphorated compound and substantially adipodinitrile and is obtained by reacting butadiene with hydrocyanic acid in the presence of a catalyst containing a phosphorated compound. The process is characterized in that: (1) the portion by weight of a phosphorated compound, calculated as phosphorus, in the mixture is reduced; (2) the resultant mixture is partially hydrogenated in the presence of a catalyst in order to form an alpha-, omega aminonitrile; and (3) 6-aminocapronitrile and hexamethylene diamine are separated from the mixture.
L'invention concerne un procédé de préparation simultanée de 6-aminocapronotrile et de diamine d'hexaméthylène à partir d'un mélange contenant un composé comprenant du phosphore et essentiellement de l'adipodinitrile et obtenu par réaction de butadiène avec de l'acide cyanhydrique en présence d'un catalyseur contenant un composé comprenant du phosphore. Ce procédé se caractérise en ce que (1) la proportion en poids d'un composé comprenant du phosphore, calculée en tant que phosphore, est réduite dans le mélange et que (2) le mélange obtenu est partiellement hydrogéné en présence d'un catalyseur pour former un alpha, omega-aminonitrile et que (3) le 6-aminocapronitrile et la diamine d'hexaméthylène sont séparés du mélange.
Bassler Peter
Flick Klemens
Luyken Hermann
Rehfinger Alwin
Voit Guido
Basf Aktiengesellschaft
Robic
LandOfFree
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