Nitrogen adsorption with a divalent cation exchanged lithium X-zeolite
US5258058A · kind A · utility
45Cited by
16References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1992 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Oct 5, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/21
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to a process for separating nitrogen from gas mixtures containing nitrogen and less strongly adsorbed components such as oxygen, hydrogen, argon or helium by use of an at least binary exchanged X-zeolite having lithium and a divalent cation selected from the group consisting of barium, cobalt, copper, chromium, iron, magnesium, manganese, nickel, zinc and mixtures thereof in a ratio of preferably 5% to 50% of the divalent cation and 50% to 95% lithium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.