Patent Number: 6,251,821

Title: Solid mixed oxide composition containing molybdenum, cobalt and bismuth, which is suitable for the manufacture of acrolein from propylene by a redox reaction

Abstract: A mixed oxide solid composition of the formulas (I): (a) Mo.sub.12 Co.sub.4.7 Bi.sub.1 Ni.sub.2.6 Fe.sub.3.7 W.sub.0.5 Sn.sub.0.5 Si.sub.1 K.sub.0.08 O.sub.x ; (b) Mo.sub.12 Co.sub.3.5 Bi.sub.1.1 Fe.sub.0.8 W.sub.0.5 Si.sub.1.4 K.sub.0.05 O.sub.x ; and (c) Mo.sub.12 Co.sub.3.8 Bi.sub.1.2 Fe.sub.0.9 W.sub.1.1 Si.sub.1.5 K.sub.0.05 O.sub.x, wherein x is the quantity of oxygen bonded to the other elements and depends on their oxidation states, is suitable for the manufacture of acrolein by oxidizing propylene. The solid composition reacts with propylene according to the redox reaction (1): To manufacture acrolein, gaseous propylene is passed over the solid composition. Redox reaction (1) is conducted at a temperature of 200 to C., at a pressure of 1.01.times.10.sup.4 to 1.01 to 10.sup.6 Pa (0.1 to 10 atmospheres) and with a residence time of 0.01 second to 90 seconds, in the absence of molecular oxygen.

Inventors: Hecquet; Gerard (Bethune, FR), Schirmann; Jean-Pierre (Paris, FR), Simon; Michel (Saint-Avold, FR), Descat; Gilles (Saint-Avold, FR), Etienne; Eric (Saint-Avold, FR)

Assignee: Institut Francais du Petrole

International Classification: C07C 45/00 (20060101); C07C 45/28 (20060101); B01J 023/00 ()

Expiration Date: 06/26/2018