Process for producing aromatic dicarboxylic acids
US4831189A · kind A · utility
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26Claims
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Key dates
| Filing date | Feb 20, 1986 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Feb 20, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/285
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing an aromatic dicarboxylic acid which comprises subjecting a "K-region" arene to liquid phase oxidation with hydrogen peroxide in a water-insoluble organic solvent in the presence of a tungsten compound and a phase transfer catalyst and optionally a mineral acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.