Process for producing methyl methacrylate

Details Process for producing methyl methacrylate Process for producing methyl methacrylate

1993-10-12

1994-12-06

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 6700

Patent

active

053712730

ABSTRACT:
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.degree. to 300.degree. 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.

REFERENCES:
patent: 5068399 (1991-11-01), Naito et al.
patent: 5075493 (1991-12-01), Shima et al.
patent: 5087736 (1992-02-01), Higuchi et al.
patent: 5250729 (1993-10-01), Abe et al.

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