C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 45/35 (2006.01) B01J 27/185 (2006.01) B01J 27/192 (2006.01) B01J 37/02 (2006.01) C07C 47/22 (2006.01)
Patent
CA 2184840
Catalytic compositions including a carrier coated with an active phase based, in particular, on bismuth, molybdenum and/or tungsten, cobalt, nickel, iron and oxygen, and doped with phosphorus and at least one alkaline element, said active phase constituting 15-33 wt % of the catalytic composition, wherein the active phase has an atomic ratio 100 x (P + alkaline elements)/Ni of 0.9-10. The use of such catalytic compositions for preparing unsaturated aldehydes by oxidising the corresponding olefins is also disclosed.
La présente invention a trait à des compositions catalytiques comprenant un support enrobé d'une phase active à base notamment de bismuth, de molybdène et/ou de tungstène, de cobalt, de nickel, de fer, d'oxygène, dopée par du phosphore et au moins un élément alcalin, ladite phase active représentant 15 à 33 % en poids de la composition catalytique, caractérisée en ce que la phase active présente un rapport atomique 100 x (P + éléments alcalins) / Ni compris entre 0,9 et 10. L'invention concerne de même l'utilisation de telles compositions catalytiques pour l'obtention d'aldéhydes insaturés par oxydation des oléfines correspondantes.
Adisseo Ireland Limited
Robic
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