Hollow spherical zeolite IM-5 and preparation method therefor
US9248437B2 · kind B2 · utility
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3References
18Claims
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Key dates
| Filing date | Oct 30, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Jan 23, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/61
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a hollow IM-5 molecular sieve sphere and the preparation process thereof. The process according to the present invention adds a relatively great amount of the surfactant of a cationic quaternary ammonium salt in the IM-5 molecular sieve system, to form a hollow IM-5 molecular sieve sphere via the micelle action by the surfactant, which structure benefits the mass transfer of the reaction process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.