Zeolitic adsorbents with large external surface area, process for preparing them and uses thereof
US9914109B2 · kind B2 · utility
2Cited by
12References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/556
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to zeolitic adsorbents based on agglomerated crystals of FAU zeolite comprising barium and/or potassium, with large external surface area, combining optimum properties in terms of selectivity and mechanical strength.These adsorbents find applications in the separation of cuts of C8-aromatic isomers and notably of xylenes, in the separation of isomers of substituted toluene such as nitrotoluene, diethyltoluene, toluenediamine, in the separation of cresols, and polyhydric alcohols, such as sugars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.