Oxidation process
US4330676A · kind A · utility
49Cited by
1References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1978 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Jun 22, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/265
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A reaction slurry of a solid aromatic carboxylic acid such as terephthalic acid in mother liquor such as acetic acid which has been obtained by catalytic oxidation of an aromatic compound such as p-xylene in a solvent such as acetic acid is held in a washing zone to allow the solid acid to separate under gravity into fresh solvent, and a washed slurry of solid acid in solvent is withdrawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.