System for producing methacrylic acid
US8273313B2 · kind B2 · utility
2Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2010 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Aug 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A system and process for separating methacrolein (MA) from methacrylic acid (MAA) and acetic acid in the gas phase product from partial oxidation of isobutylene (IB) in two oxidation steps is disclosed. The process and system maximize recovery of all three components at minimum capital and energy cost, under conditions that minimize polymerization conditions and plugging by solids deposition in compressors, columns, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.