PROCESS FOR PREPARING ACRYLIC ACID

摘要

Process for the oxidative conversion of propylene to acrylic acid which comprises contacting a mixture of vaporized propylene and oxygen at a temperature from about 300 DEG C. to about 500 DEG C. with a novel catalyst comprising oxidized molybdenum and at least one of oxidized niobium and oxidized tantalum. The novel catalyst may further include oxidized arsenic. Acrylic acid may be subsequently converted to lower alkyl esters for use in the plastics industry.