Process for production of acrylic acid or its derivatives
US10301246B2 · kind B2 · utility
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29Claims
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Key dates
| Filing date | Dec 16, 2015 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for the catalytic dehydration of hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propanoic acid, and acetic acid, are provided. The processes can be carried out either in a gas phase or in a liquid phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.