Molecular sieve synthesis
US5296208A · kind A · utility
22Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Aug 7, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B37/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In the hydrothermal synthesis of crystalline microporous molecular sieves from a reaction system containing an organic templating agent, it is found that removal of at least some of the organic reagent prior to the time the formation of crystalline product is complete results in an increased yield of the product. The removal of the organic reagent disrupts the equilibrium that is normally established in the reaction system at the selected crystallization temperature between product formation and product dissolution and shifts the reaction toward the formation of additional product before a new equilibrium can form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.