Stable high solids, high ratio alkali metal silicate solutions
US5624651A · kind A · utility
5Cited by
7References
10Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 20, 1996 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Feb 20, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B33/325
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a method of increasing the silica to metal oxide ratio in alkali metal silicate solutions by removing smaller size anions from the solution using a strong cation exchange resin comprising: condensing the smaller size anions as silica in the pores of the strong cation exchange resin; leaving the larger, more siliceous anions in the external solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.