Preparation process for ferrierrite zeolite and its uses as an isomerization catalyst of linear olefin in isoolefin or as a hydrocracking and hydroisomerization paraffin catalyst
US6136289A · kind A · utility
7Cited by
10References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/23
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process of preparing a ferrierite-type zeolite, with high crystallinity rate and having a anhydrous stage composition expressed by the formula M.sub.x (AlO.sub.2).sub.x (SiO.sub.2).sub.y, M being a cation of an alkaline metal such as Na or K, or a mix of both. The process contains a gel-producing step, by addition of boric acid to an aqueous aluminum-sulfate solution mixed with a aqueous solution containing oxides of Na and/or K and of Si, without the use of a structural agent. The invention also pertains to any zeolite obtained by this process, and its uses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.