Title:
PROCESS FOR PRODUCING GLYOXAL
Document Type and Number:
WIPO Patent Application WO/1984/000955
Kind Code:
A1
Abstract:
Glyoxal is produced in a high yield by bringing a gaseous mixture of ethylene glycol and molecular oxygen diluted with an inert gas into contact with a silver catalyst at high temperatures in the presence of phosphorus or a phosphorus compound to conduct gas phase oxidation. In this process, the use of powdery silver particles having a diameter of 1 x 10-3 mm or less as at least part of the silver catalyst serves to depress production of a reaction intermediate of glycolaldehyde and increase stability of the reaction.
Inventors:
TOYODA YOSHIAKI (JP)
WAKIMURA KAZUO (JP)
HASE TADAHARU (JP)
ARASHIBA NOBUMASA (JP)
WAKIMURA KAZUO (JP)
HASE TADAHARU (JP)
ARASHIBA NOBUMASA (JP)
Application Number:
PCT/JP1983/000283
Publication Date:
March 15, 1984
Filing Date:
August 30, 1983
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS (JP)
International Classes:
C07C45/38; (IPC1-7): C07C47/127; B01J23/50; C07C45/38
Foreign References:
| JPS4711111A | ||||
| JPS465617A | ||||
| JPS5859933A | 1983-04-09 |
Download PDF:
Previous Patent: A METHOD FOR THE PREPARATION OF A SECONDARY ALLYLIC ESTER OR ALCOHOL
Next Patent: SECONDARY ARYLETHANOLAMINES
Next Patent: SECONDARY ARYLETHANOLAMINES