Introduction of mesoporosity into zeolite materials with sequential acid, surfactant, and base treatment
US9376324B2 · kind B2 · utility
31Cited by
160References
31Claims
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Key dates
| Filing date | Jan 14, 2013 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Oct 27, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Compositions and methods for introducing mesoporosity into zeolitic materials employing sequential acid, surfactant, and base treatments are disclosed herein. Mesopores can be introduced into zeolitic materials, such as zeolites, by treatment with an acid and surfactant followed by treatment with a base. The resulting mesoporous zeolitic materials can have a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g. Additionally, the resulting mesoporous zeolitic materials can have a total 0 to 20 Å micropore volume of at least 0.10 cc/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.