Process to produce a krypton-xenon concentrate and a gaseous oxygen product
US4568528A · kind A · utility
21Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1984 |
| Grant date | Feb 4, 1986 |
| 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 krypton-xenon concentration process which also produces substantially rare gas-free oxygen gas while requiring a stripping column substantially smaller than is required by conventional process wherein feed liquid is provided directly to a reboiling zone and only the vapor from the reboiling zone is passed through the stripping column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.