.beta.-zeolite molecular sieve absorbent
US6207604A · kind A · utility
4Cited by
25References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Aug 20, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2253/108
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provies an adsorbent which, as compared with an adsorbent comprising a zeolite (an aluminosilicate) of at least about equal Si/(Fe+Al) molar ratio (Fe is substantially absent), has high heat resistance and high hydrothermal resistance and can maintain adsorption capability even when exposed to high temperatures. This adsorbent comprises a .beta.-silicate molecular sieve containing at least Fe besides H, O and Si and, when Al is contained, containing Fe in a molar amount at least equal to that of Al.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.