Process for preparation of layered sodium silicate from anhydrous sodium silicate
US5567404A · kind A · utility
4Cited by
7References
10Claims
0Family size
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Key dates
| Filing date | Sep 1, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Sep 1, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B33/38
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved layered sodium silicate having a .delta. crystalline structure and a process for preparing it is described. By pulverizing anhydrous sodium silicate into an anhydrous sodium silicate powder, adding a limited mount of water to form a mixture granulating the mixture, and directly calcining the granules, a layered sodium silicate having improved calcium ion binding capacity and magnesium ion binding capacity can be produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.