Removal of permanganate reducing compounds from intermediate GAA process streams
US10584087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Mar 22, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C53/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of producing acetic acid, the method comprising: reacting methanol and/or methanol derivatives with carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions to form a carbonylation product comprising acetic acid and one or more oxidizable impurities; and contacting at least a portion of the carbonylation product or a derivative thereof with an adsorbent at adsorption conditions to provide a purified product comprising a reduced concentration of at least one of the one or more oxidizable impurities relative to a concentration thereof in the at least a portion of the carbonylation product or the derivative thereof. A system for carrying out the method is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.