Separation process
US5211817A · kind A · utility
25Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1992 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Mar 11, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A product stream containing, inter alia, HCl, HF and fluorocarbons which form close boiling point azeotropes with HF is subjected to distillation using sidestream rectification in order to effect energy efficient separation of selected fluorocarbon/HF azeotropes from one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.