C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 209/48 (2006.01) B01J 25/02 (2006.01) C07C 253/30 (2006.01)
Patent
CA 2624999
The invention relates to a method for the hydrogenation of oligonitriles comprising at least two nitrile groups, in the presence of a catalyst, which is pre-treated by being brought into contact with a compound A prior to the hydrogenation process, said compound being selected from the following: alkaline metal carbonates, alkaline-earth metal carbonates, ammonium carbonate, alkaline metal hydrogencarbonates, alkaline-earth metal hydrogencarbonates, ammonium hydrogencarbonate, alkaline-earth metal oxocarbonates, alkaline metal carboxylates, alkaline-earth metal carboxylates, ammonium carboxylates, alkaline metal dihydrogen phosphates, alkaline-earth metal dihydrogen phosphates, alkaline metal hydrogen phosphates, alkaline- earth metal hydrogen phosphates, alkaline metal phosphates, alkaline-earth metal phosphates and ammonium phosphate, alkaline metal acetates, alkaline- earth metal acetates, ammonium acetate, alkaline metal formiates, alkaline- earth metal formiates, ammonium formiate, alkaline metal oxalates, alkaline- earth metal oxalates and ammonium oxalate.
L'invention concerne un procédé d'hydrogénation d'oligo-nitriles ayant au moins deux groupes de nitrile, en présence d'un catalyseur qui est prétraité avant le début de l'hydrogénation, en étant mis en contact avec un composé A qui est choisi parmi des carbonates de métaux alcalins, carbonates de métaux alcalino-terreux, carbonates d'ammonium, carbonates d'hydrogène de métaux alcalins, carbonates d'hydrogène de métaux alcalino-terreux, carbonates d'hydrogène d'ammonium, d'oxocarbonates de métaux alcalino-terreux, carboxylates de métaux alcalins, carboxylates de métaux alcalino-terreux, carboxylates d'ammonium, phosphates de dihydrogène de métaux alcalins, phosphates de dihydrogène de métaux alcalino-terreux, phosphates d'hydrogène de métaux alcalins, phosphates d'hydrogène de métaux alcalino-terreux, phosphates de métaux alcalins, phosphates de métaux alcalino-terreux et phosphate d'ammonium, acétates de métaux alcalins, acétates de métaux alcalino-terreux, acétate d'ammonium, formiates de métaux alcalins, formiates de métaux alcalino-terreux, formiate d'ammonium, oxalates de métaux alcalins, oxalates de métaux alcalino-terreux et oxalates d'ammonium.
Ernst Martin
Hahn Thilo
Melder Johann-Peter
Basf Se
Robic
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