Preparation of zeolites
US4340573A · kind A · utility
18Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1980 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | Jan 9, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Synthetic crystalline alumino-silicate zeolites are prepared by combining reactant quantities of alumina, silica, sodium hydroxide and water with zeolite-forming alumino-silicate seeds having the composition 16 Na.sub.2 O: 2 to 9 Al.sub.2 O.sub.3 : 15 SiO.sub.2 : 500 to 2000 H.sub.2 O. The seed compositions may be used to produce Type A, X and Y crystalline alumino-silicate zeolites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.