Process for the preparation of an improved chabazite for the purification of bulk gases
US5026532A · kind A · utility
19Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Apr 6, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2210/0046
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is provided for preparing a synthetic chabazite having a Si/Al ratio of 1.8 to 2.3 by mixing an alumina source, sodium hydroxide, potassium hydroxide, a TMA reagent at a ratio of (TMA).sub.2 O:Al.sub.2 O.sub.3 of 0.08 to 0.0001, and a silica source to form a gel, crystallizing the gel by heating at a temperature of from about 25.degree. to 150.degree. C. for at least one hour, and separating the resulting chabazite product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.