Method for recovering methyl acetate and residual acetic acid in the production acid of pure terephthalic acid
US6150553A · kind A · utility
12Cited by
13References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for recovering methyl acetate and residual acetic acid in a two-stage process for producing pure terephthalic acid having a first oxidation stage and a second purification stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.