Process for producing adipic acid
US7491845B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | May 18, 2004 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Nov 17, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
It is provided to a process for producing adipic acid which comprises making a wastewater containing hydroxycaproic acid and discharged from the step of oxidizing cyclohexane with molecular oxygen in a liquid phase react with hydrogen peroxide in the presence of a tungsten catalyst in the pH range of 0 to 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.