Manufacturing method for fluorine-containing ethane
US6455745B1 · kind B1 · utility
8Cited by
3References
6Claims
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Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Jan 10, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/21
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Fluorochromium oxide having a fluorine content of not less than 30 wt. % is used for the fluorination reaction.To provide a manufacturing method for fluorine-containing ethane which contains 1,1,1,2,2-pentafluoroethane as the main component in which the reaction can be performed while controlling the generation of CFCs to the greatest possible extent by fluorinating at least on selected from the group composed of tetrachloroethylene, 2,2-dichloro-1,1,1-trifluoroethane and 2-chloro-1,1,1,2-tetrafluoroethane with hydrogen fluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.