Zeolite adsorbents based on barium, strontium, potassium and sodium, preparation process therefor, and uses thereof
US11439975B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Dec 17, 2018 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Jun 22, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C211/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to zeolite adsorbents based on agglomerated crystals of zeolite X comprising barium, potassium, sodium and strontium. These adsorbents have applications in the separation of fractions of aromatic C8 isomers and in particular xylenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.