Catalysts for the production of acrylic acid or its derivatives
US10294186B2 · kind B2 · utility
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Oct 18, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/530496
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed protonated monophosphates. Methods of preparing the catalysts are also provided.
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