Engineered coal char
US11819820B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 20, 2021 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Sep 3, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/007
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Provided herein are an adsorbent and method of treating water using the adsorbent. The adsorbent includes thermally- and chemically-treated lignite coal. The method includes contacting wastewater with the treated lignite coal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.