Para-xylene selective adsorbent compositions and methods
US7122496B2 · kind B2 · utility
1Cited by
56References
79Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | May 5, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/13
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Adsorbent compositions for vapor-phase adsorption processes, which are selective for para-xylene. Such compositions can be used in gas-phase adsorption processes for the separation of para-xylene or the separation of para-xylene and ethylbenzene from mixed xylenes or a C8 aromatic mixture, respectively. The adsorbent compositions generally comprise materials of a molecular sieve material and a binder, wherein the adsorbent composition has a macropore volume of at least about 0.20 cc/g and a mesopore volume of less than about 0.20 cc/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.