Optimized liquid-phase oxidation
US7572932B2 · kind B2 · utility
2Cited by
186References
69Claims
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Key dates
| Filing date | Jun 16, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Nov 10, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.