Method of making essentially silicic zeolite beta
US5554356A · kind A · utility
11Cited by
15References
20Claims
0Family size
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Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/27
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A molecular sieve having a zeolite beta morphology, but essentially free of alumina, is prepared from a silicon oxide source in high yield by a hydrothermal crystallization in the presence of a diquaternary templating agent. The templating agent may be derived from a diamine such as 4,4'-trimethylenebis(N-benzylpiperidine).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.