Process for separating methacrolein from methacrylic acid in a gas phase product from the partial oxidation of isobutene
US7799946B2 · kind B2 · utility
3Cited by
1References
9Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 14, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Feb 19, 2029 |
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.