Crystalline zeolite and method of preparing same
US4046859A · kind A · utility
71Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1975 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | Mar 20, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/655
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A new family of crystalline zeolites, designated ZSM-21, a method of making same and the use thereof in catalytic conversion of hydrocarbons is the subject of this application. The new zeolites have the composition, in the anhydrous state, expressed in terms of mole ratios of oxides as follows: EQU (0.3-2.5)R.sub.2 O : (0-0.8)M.sub.2 O : Al.sub.2 O.sub.3 : >8 SiO.sub.2 wherein R is an organic nitrogen-containing cation and M is an alkali metal cation, and are characterized by a specified X-ray powder diffraction pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.