Process for preparation of glyoxylic acid
US4503246A · kind A · utility
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3References
14Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 1, 1981 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Dec 1, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/29
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of glyoxylic acid is disclosed which comprises reacting an aqueous solution of glyoxal with chlorine. The reaction is preferably carried out under pressure, under the condition that the hydrochloric acid concentration in the aqueous solution of glyoxal is 1 to 15%. The reaction can be carried out in the presence of a catalytically effective amount of bromine as a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.