Rare earth stabilized aluminum deficient zeolite
US4701431A · kind A · utility
13Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1986 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Apr 10, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A rare earth stabilized aluminum deficient zeolite having the structure of faujasite is provided. The zeolite is produced by contacting a Y-type zeolite with a dealuminating agent to remove aluminum from the crystal structure of the zeolite and ion exchanging the zeolite with a specified amount of rare earth metal cations to stabilize the aluminum deficient zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.