Method for preparing acrylic acid and methyl acrylate
AssigneeDalian Institute of Chemical Physics, Chinese Academy of Sciences
InventorsLei Shi, Zongmin Liu, Youming In, Wenliang Zhu, Yong Liu, Hongchao Liu
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Abstract
The present invention provides a method for preparing acrylic acid and methyl acrylate. The method comprises passing the feed gas containing dimethoxymethane and carbon monoxide through a solid acid catalyst to generate acrylic acid and methyl acrylate with a high conversion rate and selectivity at a reaction temperature in a range from 180 to 400 and a reaction pressure in a range from 0.1 MPa to 15.0 MPa, the mass space velocity of dimethoxymethane in the feed gas is in a range from 0.05 h−1 to 10.0 h−1, and the volume percentage of dimethoxymethane in the feed gas is in a range from 0.1% to 95%.
Claims17
A method, for preparing acrylic acid and methyl acrylate, the method comprising passing a feed gas containing dimethoxymethane and carbon monoxide through a reactor loaded with a molecular sieve catalyst to carry out a reaction, to generate acrylic acid and methyl acrylate, methyl acetate and acetic acid;
- wherein the esters produced by the method are further hydrolyzed to produce the corresponding carboxylic acids, including the hydrolysis of the methyl acrylate to produce the corresponding acrylic acid, and the hydrolysis of the methyl acetate to produce the corresponding acetic acid.
Dependencies are inferred from the claim text.