Methods for the production of α,β-unsaturated carboxylic acids and salts thereof
US9725393B2 · kind B2 · utility
13Cited by
34References
20Claims
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Assignee
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Key dates
| Filing date | Apr 6, 2016 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Apr 6, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for producing an α,β-unsaturated carboxylic acid, such as acrylic acid, or a salt thereof, using treated solid oxides are disclosed. The treated solid oxides can be calcined solid oxides, metal-treated solid oxides, or metal-treated chemically-modified solid oxides, illustrative examples of which can include sodium-treated alumina, calcium-treated alumina, zinc-treated alumina, sodium-treated sulfated alumina, sodium-treated fluorided silica-coated alumina, and similar materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.