High silica faujasite polymorph - CSZ-3 and method of synthesizing
US4333859A · kind A · utility
25Cited by
2References
18Claims
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Key dates
| Filing date | Oct 27, 1980 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Oct 27, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/21
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high silica faujasite structure, CSZ-3, has a composition 0.02 to 0.20 Cs.sub.2 O: 0.80 to 0.95 Na.sub.2 O: Al.sub.2 O.sub.3 : 5.0 to 7.0 SiO.sub.2 : 2-10 H.sub.2 O The zeolite has utility in sorption, separation and catalytic applications and it has high hydrothermal stability. It is made by reacting sources of silica, alumina, soda, and cesia together with a nucleating agent in the form of seeds or a seed solution, followed by hot aging at a temperature between 50.degree. and 160.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.