Arylsulfonic acid—modified sulfuric acid and uses thereof
US12123138B2 · kind B2 · utility
3Cited by
2References
17Claims
0Family size
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Key dates
| Filing date | Aug 20, 2021 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Mar 2, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/163
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An aqueous composition comprising: sulfuric acid; a modifying agent comprising an arylsulfonic acid; 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.