Modified sulfuric acid and uses thereof
US12371853B2 · kind B2 · utility
0Cited by
11References
18Claims
0Family size
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Key dates
| Filing date | May 13, 2024 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | May 13, 2044 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/163
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
One-pot processes to separate lignin from a lignocellulosic feedstock include providing a vessel; providing a lignocellulosic feedstock; providing an aqueous composition comprising an acid, a modifying agent comprising a substituted aromatic compound, and a peroxide; and exposing the lignocellulosic feedstock to the composition in the vessel for a period of time sufficient to remove at least 80% of the lignin present in the lignocellulosic feedstock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.