Argon/oxygen selective X-zeolite
US6432170B1 · kind B1 · utility
13Cited by
9References
22Claims
0Family size
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Key dates
| Filing date | Feb 13, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Feb 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An AgX-type zeolite having a silver exchange level of 20-70% and a Ar/O2 Henry's law selectivity ratio at 23° C. of 1.05 or greater has an optimum combination of selectivity for argon over oxygen at lower cost than higher silver exchange levels. This material can be used in oxygen VSA/PSA processes to produce oxygen at purities above 97%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.