Patent ID: 9714205
Date: 2017-07-25
CPC Classifications: B01J,C07C

Claim:
1. A process for direct synthesis of (meth)acrolein comprising i) reacting a reactive mixture comprising at least one reactive compound, oxygen and a non-reactive diluent gas, in a reaction assembly operated in the gas phase at a temperature of between 200° C. and 400° C. and at a pressure of between 1 and 10 bar, in the presence of a solid oxidation catalyst chosen from molybdenum-based catalysts and optionally of an aldol condensation catalyst, and then ii) recovering gas effluent comprising the (meth)acrolein formed in the presence of water coproduced by the reaction, wherein the at least one reactive compound comprises a compound of formula (I) R R 1 is H or a methyl, ethyl or propyl radical, and R 2 is a methyl, ethyl or propyl radical or a radical of formula CH 2 —O—R 3 , CH(CH 3 )—O—R 3 or CH(CH 2 —CH 3 )—O—R 3 , with R 3 being a methyl, ethyl or propyl radical, wherein R wherein, when R wherein the at least one reactive compound is chosen such that the R