Modified sulfuric acid and uses thereof
US12065780B2 · kind B2 · utility
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2References
20Claims
0Family size
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Key dates
| Filing date | Aug 20, 2021 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Apr 20, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C11/0007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An aqueous composition comprising: sulfuric acid; a modifying agent comprising a carbonyl-containing nitrogenous base compound; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.