Process for the preparation of a glyoxylic acid ester

Details Process for the preparation of a glyoxylic acid ester Process for the preparation of a glyoxylic acid ester

1985-01-11

1990-11-06

Garner, Vivian

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

Organic compounds

Carboxylic acid esters

502243, 502247, 502263, 502527, C07C 67313, C07C 6967

Patent

active

049688332

ABSTRACT:
The invention relates to a process for the preparation of a glyoxylic acid ester by oxydehydrogenation of the corresponding glycolic acid ester in the gas phase over a supported catalyst in a tubular reactor. The catalyst support consists of at least one cylindrical monolith which essentially has the same diameter as the reactor tube and contains channels with a diameter of 1 to 10 mm leading from the inlet to the outlet of the reactor tube. 60 to 90% of the monolith volume is formed by hollow spaces.

REFERENCES:
patent: 3347798 (1967-10-01), Baer et al.
patent: 3898180 (1975-08-01), Crooks et al.
patent: 4273681 (1981-06-01), Nonnenmann
patent: 4340748 (1982-07-01), Baltes et al.

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