Process for purification of rare gas
US5294422A · kind A · utility
7Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 5, 1992 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Oct 5, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B23/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Highly purified rare gas (helium, neon, argon, krypton, xenon, etc.) is obtained by removing impurities contained therein, such as nitrogen, hydrocarbon, carbon monoxide, carbon dioxide, oxygen, hydrogen and water, at relatively low temperatures by the use of a getter. This getter is a two-component alloy of zirconium and vanadium, or a multi-component alloy containing, as well as zirconium and vanadium, at least one of chromium, nickel and cobalt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.