Process for the separation of hydrogen fluoride and of difluoromethane
US5707497A · kind A · utility
12Cited by
1References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 27, 1995 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Feb 27, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B7/196
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the separation of hydrogen fluoride (HF) and of difluoromethane (F32) by fractional distillation and/or condensation, in at least one stage, including in at least one stage obtaining a stream whose HF and F32 contents correspond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.