Process to produce an oxygen-free krypton-xenon concentrate
US4647299A · kind A · utility
11Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1984 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Aug 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/925
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method to concentrate krypton and xenon in a substantially oxygen-free liquid employing a two-section exchange column, the top section of which is refluxed by a substantially rare gas-free liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.