Activated carbons with high surface areas and methods of making same
US11124418B2 · kind B2 · utility
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14References
29Claims
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Key dates
| Filing date | May 29, 2017 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jul 27, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Activated carbons with high surface areas are produced from a synergistic activation effect triggered at high temperatures by a predetermined combination of chemical activation agents derived from weak acidic salts, and/or weak basic salts, and/or neutral salts, and/or compounds. In one embodiment, a method of the present invention comprises mixing a carbon precursor with a first component comprising a first salt and at least one second component selected from the group consisting of a second salt, a compound and combinations thereof, in an inert environment or in carbon dioxide and/or steam environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.