Process for producing fluorine-containing olefin
US9856191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2016 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | May 27, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/25
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the production of fluorine-containing olefins using a chlorine-containing alkane or a chlorine-containing alkene as a starting material, a process for producing a plurality of useful fluorine-containing olefins with high selectivity using the same raw material, the same equipment, and the same conditions is provided. The present invention provides a process for producing fluorine-containing olefins, the process comprising reacting a chlorine-containing compound represented by a specific formula and anhydrous hydrogen fluoride in the presence of oxidative gas and a fluorination catalyst, wherein the fluorination catalyst is a catalyst in which at least one metal element M selected from the group consisting of Group VIII and Group IX is present together with chromium. This production process can simultaneously produce two or more fluorine-containing olefin compounds, including HFO-1234yf and HFO-1234ze, with high selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.