Method for recovering silica from silica-containing plant body using titanium oxide
US10479691B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Rice straw and chaff that are discharged as agricultural waste in large amounts are effectively utilized. The present invention has been completed on the basis of the finding that silica can be recovered with high efficiency by bringing heated titanium oxide into contact with a silica-containing plant body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.