Direct crystallization of organic-swelled layered silicates and preparation of layered silicates containing interlayer polymeric chalcogenides therefrom
US5283043A · kind A · utility
10Cited by
6References
19Claims
0Family size
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Key dates
| Filing date | Apr 16, 1992 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Apr 16, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B33/44
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is provided a method for preparing organic-swelled layered silicate by direct crystallization from an alkaline reaction mixture containing a source of silicon oxide and organic onium compound, e.g., a cetyltrimethylammonium salt. Layered silicates containing interlayer polymeric chalcogenide are prepared by contacting the organic-swelled layered silicate with a source of polymeric chalcogenide, e.g., tetraethylorthosilicate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.