Beta type zeolite and its preparation process
US5171556A · kind A · utility
15Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The object of the invention is a synthetic crystalline zeolite of the beta type characterized by: PA0 a) the following approximate general formula: EQU M.sub.2/n O, Al.sub.2 O.sub.3, xSiO.sub.2 PA0 where M represents a proton and/or a metallic cation PA0 n is the valence of M PA0 x is a number ranging from 5 to 800, PA0 b) an X-ray diffraction diagram represented in table I of the description, and PA0 c) a fluorine content ranging from about 0.005 to 2.0% by weight, said zeolite having been furthermore synthetized in a fluoride medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.