Biochar production method and composition therefrom
US8398738B2 · kind B2 · utility
4Cited by
1References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Mar 4, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B32/336
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention is directed to a method for producing an oxygenated biochar material possessing a cation-exchanging property, wherein a biochar source is reacted with one or more oxygenating compounds in such a manner that the biochar source homogeneously acquires oxygen-containing cation-exchanging groups in an incomplete combustion process. The invention is also directed to oxygenated biochar compositions and soil formulations containing the oxygenated biochar material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.