Process for preparing methacrolein
AssigneeRuhrchemie Aktiengesellschaft
InventorsWolfgang Bernhagen, Hanswilhelm Bach, Eike Brundin, Wilhelm Gick, Helmut Springer, Adolf Hack
Life of this patent
Estimating the term…
Abstract
A process for preparing methacrolein by catalytic reaction of propionaldehyde with formaldehyde is disclosed wherein the catalyst comprises a mixture of secondary amine and organic carboxylic acid with up to 8 carbon atoms.
Claims14
In a process for preparing methacrolein by catalytic reaction between propionaldehyde and formaldehyde, the improvement wherein said catalyst is a mixture of a secondary amine and an organic carboxylic acid with up to 8 carbon atoms selected from the group consisting of formic acid, acetic acid, propionic acid, n-butanoic acid, i-butanoic acid, oxalic acid, maleic acid, acetylene dicarboxylic acid, malonic acid, glutaric acid, succinic acid, tartaric acid, adipic acid, hydroxy succinic acid, salicylic acid and 2-ethylhexanoic acid and the process is carried out at a temperature of 70.degree. to 120.degree. C.
Dependencies are inferred from the claim text.