Purification of HCFC-133A
US6288294A · kind A · utility
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3Claims
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Inventor
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Mar 6, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/395
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for purifying a 133a product mixture containing olefinic impurities is provided wherein the mixture is contacted with a diene under conditions sufficient to convert the olefinic impurities to cyclohexenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.