Crystalline aluminosilicate percursor
US4160011A · kind A · utility
10Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1977 |
| Grant date | Jul 3, 1979 |
| Priority date | — |
| Expiry date | Dec 29, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An amorphous powder useful as a precursor for the preparation of crystalline aluminosilicates is prepared by forming a sodium aluminum silicate water mixture whose composition falls within specified ranges for forming sodium zeolite A. By dehydrating the mixture with a water miscible solvent prior to aging and crystal formation, an amorphous powder is recovered for future use. Upon subsequent treatment the amorphous powder can be converted to crystalline aluminosilicates including type 3A, 4A, 5A, X and Y.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.