Process to prepare insoluble polymer abatement additives in styrene process streams by catalytic oxidation
US11179702B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Feb 4, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oxidation catalyst for the oxidation of styrene to benzaldehyde and acetophenone, the oxidation catalyst comprising: a porous support; and an active phase comprising an oxygen activation metal comprising cobalt (Co), manganese (Mn), iron (Fe), molybdenum (Mo), or a combination thereof. A method of forming the oxidation catalyst, a method of forming an oxidation product comprising benzaldehyde and acetophenone by contacting the oxidation catalyst with styrene and air in an oxidation reactor, and a system and method for reducing the fouling in a process for the production of styrene by introducing an additive stream comprising at least a portion of the oxidation product into a stream comprising styrene and byproduct divinyl benzene (DVB) are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.