Process for preparing modified V-Ti-P catalysts for synthesis of 2,3-unsaturated carboxylic acids
US8883672B2 · kind B2 · utility
7Cited by
54References
27Claims
0Family size
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Key dates
| Filing date | Sep 16, 2011 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Dec 21, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/55
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.