Method and apparatus for making acetic acid with improved light ends column productivity
US7989659B2 · kind B2 · utility
3Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2007 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | May 17, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved apparatus and method of producing acetic acid includes condensing overhead vapor to provide reflux to the light ends column as well as condensing vapor from a central portion of the light ends column to increase capacity. Throughput or load on the light ends column is substantially reduced without compromising product quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.