Transalkylation of alkylated phenols
US12312302B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Sep 30, 2020 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Nov 10, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Transalkylation processes using catalysts comprising three dimensional 12 membered ring zeolites with a combination of small and large pores are described. These catalysts have increased conversion of alkylphenols to phenol, cresols, and alkylbenzenes from coal-derived liquid streams compared to catalysts consisting of HZSM-5 zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.