Polyvalent pollution removal composition and use thereof
US9938441B2 · kind B2 · utility
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3References
10Claims
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Key dates
| Filing date | Nov 28, 2013 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Nov 28, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/49
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pollution removal composition includes: (a) at least one silica gel; and (b) at least one wood-derived absorbent agent, characterized in that the silica gel has a grain-size distribution of between 60 and 500 ym and a density of between 150 and 400 kg/m3. A pollution removal method using the composition is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.