| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 06.00 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Process for purifying argon to obtain high-purity argon from argon gas contg at least N, CO, O & CH4 - Adding air or O to the Ar gas in an amount sufficient to oxidi ze the contained CO into CO2 in the presence of a catalyst while maintaining a T sufficient to oxidize the contained CO without oxidizing CH4 - Adding H into the Ar gas & reacting contained O with H into water in the presence of catalyst - Removing CO2 & water from Ar gas by use of an absorbent - Cooling the Ar gas, introducing the Ar thus cooled into a distn column & performing distn by use of a reflux contg Ar as a main comp to remove N, H, & CH4, thereby recove ring high purity Ar gas |
| PATENT PHOTOCOPY | Available on request |
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