Crystalline zeolite ZSM-25
US4247416A · kind A · utility
13Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Feb 28, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/70
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A new crystalline zeolite, designated "ZSM-25", a method of making the zeolite and using the zeolite in catalytic conversion of hydrocarbons, is the subject of this application. The new zeolite has a composition in the anhydrous state expressed in terms of mole ratios of oxides as follows: EQU (0.01-0.4)R.sub.2 O:(0.9.+-.0.2)M.sub.2 O:Al.sub.2 O.sub.3 : (6-10)SiO.sub.2 wherein R is an organic nitrogen-containing cation such as tetraethylammonium ions and M is an alkali metal cation such as sodium and is characterized by a specified X-ray powder diffraction pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.