Integrated process for the production of acrylic acids and acrylates
US9073846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Jun 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for producing a crude product stream including an acrylate product and an alkylenating agent and separating at least a portion of the crude product stream to form alkylenating agent and intermediate product streams. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate products in high concentration. The crude product stream is formed by contacting acetic acid and formaldehyde in the presence of at least one aldol condensation catalyst under conditions effective to form the stream. Catalysts which are particularly useful are multielement oxide active materials of the general formulaV1PbFecX1dX2eOn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.