Process for dehydrohalogenation of halogenated alkanes
US9884796B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Apr 16, 2013 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/25
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the manufacture of halogenated olefins in semi-batch mode by dehydrohalogenation of halogenated alkanes in the presence of an aqueous base such as KOH which simultaneously neutralizes the resulting hydrogen halide. During the process, aqueous base is continuously added to the haloalkane which results in better yields, lower by-product formation and safer/more controllable operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.