Coated catalysts comprising a multimetal oxide comprising...

Details Coated catalysts comprising a multimetal oxide comprising... Coated catalysts comprising a multimetal oxide comprising...

B - Operations, Transporting

01

J

B01J 23/28 (2006.01) B01J 23/00 (2006.01) B01J 23/88 (2006.01) B01J 23/887 (2006.01) B01J 35/00 (2006.01) B01J 37/00 (2006.01) B01J 37/02 (2006.01) B01J 37/03 (2006.01) C07B 33/00 (2006.01) C07B 35/04 (2006.01) C07C 5/333 (2006.01)

Patent

CA 2719157

The invention relates to a shell catalyst that can be obtained from a catalyst precursor comprising, (a) a support body, (b) a shell containing (i) a catalytically active multi-metal oxide containing molybdenum and at least one other metal, represented by general formula (I) Mo12Bi a Cr b X1c Fe d X2e X3f0y (I), wherein X1 = Co and/or Ni, X2 = Si and/or AI, X3 = Li, Na, K, Cs and/or Rb, 0,2 < a< 1, 0< b< 2, 2< c < 10, 0,5 < d< 10, 0< e < 10, 0< f< 0,5 and y= a number determined by the valence and frequency of the elements different from oxygen in (i), with the condition of the charging neutrality, and (ii) at least one pore for-mer.

L'invention concerne un catalyseur en coquille pouvant être obtenu à partir d'un précurseur de catalyseur, comportant (a) un corps support, (b) une coquille contenant (i) un oxyde multimétallique à activité catalytique, renfermant du molybdène et au moins un autre métal, représenté par la formule générale (I) Mo12BiaCrbX1 cFedX2 eX3 fOy (I), dans laquelle X1 = Co et/ou Ni, X2 = Si et/ou AI, X3 = Li, Na, K, Cs et/ou Rb, 0,2 < a < 1, 0 < b < 2, 2 < c < 10, 0,5 < d < 10, 0 < e < 10, 0 < f < 0,5 et y = un nombre déterminé par la valence et la fréquence des éléments différents de l'oxygène dans (i), avec la condition de neutralité de la charge; et (ii) au moins un agent de formation de pores.

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