Preparation of synthetic ferrierite
US4017590A · kind A · utility
16Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1976 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Apr 15, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/23
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Synthetic Na,K-ferrierite, a molecular sieve zeolite capable of intracrystalline adsorption of molecules, is prepared by hydrothermal synthesis in the water, soda, potash, alumina, silica system. Crystallization is best achieved in the temperature range of 230.degree.-310.degree. C and autoclaving times of 2-96 hours with the use of co-precipitated silica-alumina gels and Na and K carbonates and bicarbonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.