Polycarboxylic acid production system with enhanced residence time distribution for oxidative digestion
US7393973B2 · kind B2 · utility
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29References
42Claims
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Key dates
| Filing date | Mar 1, 2006 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Jun 8, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/265
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system includes an oxidative digestion reactor/zone configured to provide optimized residence time distribution for the solid and liquid phases of the reaction medium processed therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.