Method of a simultaneous preparation of hexafluoropropylene and octafluorocyclobutane
US6710215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Nov 25, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/281
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of simultaneous and selective prepararation of hexafluoropropylene and octafluorocyclebutane comprising the steps of:(a) thermally decomposing difluorochloromethane to obtain tetrafluoroethylene and then supplying the resulting tetrafluoroethylene into a fluidized bed reactor equipped with a distributor for supplying steam; and(b) supplying steam into a flow of tetrafluoroethylene supplied into the fluidized bed reactor, through a distributor for supplying steam at a certain molar ratio of tetrafluoroethylene/stream, and then performing dimerization of tetrafluoroethylene in the fluidized bed reactor under an atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.