Process for regenerating a deactivated vanadium-titanium-phosphorous catalyst
US11351523B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | May 13, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for regenerating a deactivated vanadium-titanium-phosphorous catalyst which has been used in the production of unsaturated carboxylic acid is disclosed. The process comprises contacting the deactivated vanadium-titanium-phosphorous catalyst with a regeneration stream comprising steam as a regeneration agent at a temperature which is the same or similar to that used in the production of the unsaturated carboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.