<p>There is disclosed a process for producing methyl methacrylate through gas-phase catalytic reaction of methyl alpha -hydroxyisobutyrate which comprises feeding methanol in an amount by weight of 0.1 to 3.0 times the methyl alpha -hydroxyisobutyrate in a reactor along therewith and proceeding with the reaction at a reaction temperature in the range of 230 to 300 DEG C by the use of a transition-type synthetic faujasite zeolite having a specific lattice constant and a specific Na content (Na/Al) as the catalyst. The process is capable of stably producing the objective product having excellent quality in high yield for a long period of time while preventing the problems of early deterioration of the catalyst and coloring of reaction product.</p>
申请公布号
EP0598243(A2)
申请公布日期
1994.05.25
申请号
EP19930117110
申请日期
1993.10.22
申请人
MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人
SHIMA, YOSHIKAZU, C/O MITSUBISHI GAS CHEMICAL;ABE, TAKAFUMI, C/O MITSUBISHI GAS CHEMICAL;HIGUCHI, HIROFUMI, C/O MITSUBISHI GAS CHEMICAL