| abstract |
The invention relates to a process for the preparation of acrolein from glycerol, according to which dehydration of glycerol is carried out in the presence of a catalyst MWOA, where MWO represents a mixture of simple oxides and / or mixed oxides of tungsten and at least one metal M selected from zirconium, silicon, titanium, aluminum and yttrium, and A represents one or more Lewis bases, a said Lewis base corresponding to formula B (R1 p (R 2) q (R 3) r, where B is a member selected from C, S, P, O, N, B and the halides, R 1, R 2 and R 3 represent, independently of each other, H, a group C1-C6 alkyl, O, OH or OR where R is C1-C6 alkyl, and the sum of p, q and r ranges from 0 to 4. |