METHOD FOR PRODUCING ACROLEIN FROM GLYCERINE Russian patent published in 2018 - IPC C07C45/52 C07C47/22 C07C319/18 C07C323/22 C07C319/12 C07C323/25 C07C323/58 C07C323/52 B01J27/132 B01J27/135 B01J27/182 B01J27/188 

FIELD: chemistry; technological processes.

SUBSTANCE: invention refers to the method for preparation of acrolein from glycerol. Method consists in dehydrogenation of glycerol in the presence of the MWOA catalyst, where the MWO is the mixture of simple oxides and/or mixed tungsten oxides and at least one metal M, which is selected from zirconium, silicon, titanium, aluminum and yttrium, and A is one or more Lewis bases, the mentioned Lewis base has the following formula B(R₁)p(R₂)q(R₃)r, where B is the element, which is selected from C, S, P, O, N and halides, R₁, R₂ and R₃ independently from each other, are H, C₁-C_6-alkyl group, O, OH or OR, where R is the C₁-C₆-alkyl group and the sum of p, q and r is from 0 up to 4. In addition, the invention refers to the method for the preparation of 3-(methylthio)-propionaldehyde, 2-hydroxy-4-methylthiobutyronitrile, methionine, 2-hydroxy-4-methylthiobutanoic acid, its esters and metallic chelates, 2-oxo-4-methylthiobutanoic acid, its esters and metallic chelates, as well as the use of the catalyst for the conversion of glycerol into acrolein.

EFFECT: proposed method for the production of acrolein allows to obtain the desired product with high selectivity using the stable and regenerable catalyst.

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