Separation of hydrogen fluoride from hydrogen chloride gas
US4009214A · kind A · utility
4Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1975 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Apr 25, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrogen chloride gas, containing hydrogen fluoride and/or silicon tetrafluoride, is contacted with calcium chloride supported on activated alumina, to separate the hydrogen fluoride and/or silicon tetrafluoride therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.