Method for continuous production of light acrylates by esterification of a raw ester-grade acrylic acid
US9796651B2 · kind B2 · utility
3Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | Jul 24, 2014 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jul 24, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to methods by which the thermal dissociation of Michael adducts present in a stream of crude acrylic acid, called “crude ester grade”, and the esterification reaction of acrylic acid present in the stream of crude acrylic acid, or generated in situ by thermal dissociation, with a light alcohol, are carried out simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.