Process for manufacturing tetrafluoropropene
US10227275B2 · kind B2 · utility
11Cited by
4References
13Claims
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Key dates
| Filing date | Jun 22, 2015 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Jun 22, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for manufacturing tetrafluoropropene, including, alternately: at least one step of reacting a chlorinated compound with hydrofluoric acid in the gas phase, in the presence of a fluorination catalyst, the proportion of oxygen optionally present being less than 0.05 mol. % relative to the chlorinated compound; a step of regenerating the fluorination catalyst by bringing the fluorination catalyst into contact with a regeneration stream including an oxidizing agent. Also, equipment suitable for carrying out this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.