Optimized production of aromatic dicarboxylic acids
US7615663B2 · kind B2 · utility
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16References
35Claims
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Key dates
| Filing date | Jul 28, 2005 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Jun 6, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/487
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is an optimized process and apparatus for more efficiently producing and purifying aromatic dicarboxylic acids (e.g., terephthalic acid). The optimized system employs at least one zoned slurry concentrator to enhance purification of the aromatic dicarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.