Photocatalytic composites containing titanium and limestone free from titanium dioxide
US8598064B2 · kind B2 · utility
0Cited by
7References
15Claims
0Family size
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Key dates
| Filing date | Jul 31, 2009 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | May 14, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00827
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
New photocatalytic product comprising compounds of titanium integrated with limestone. The product is obtained by reacting limestone with a suitable precursor of titanium dioxide in a basic solution, recovering the product in particular conditions, drying it and calcining it. By operating in presence of sodium, a composite is obtained substantially free from titanium dioxide, containing limestone and calcium titanate. The composite thus obtained, used as such or in mixture with other components, has shown an unexpectedly high photocatalytic activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.