MODIFIED SULFURIC ACID AND USES THEREOF
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United States of America Patent
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Issued Date -
Sep 26, 2024
app pub date -
Jun 6, 2024
filing date -
Feb 25, 2021
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Abstract
One-pot processes to separate lignin from a lignocellulosic feedstock include providing a vessel; providing a lignocellulosic feedstock; providing a composition comprising an acid, a modifying agent comprising an alkanesulfonic acid, 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. In some instances, such one-pot process can further include removing a liquid phase comprising dissolved lignin fragments from a solid phase comprising cellulose fibres.
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