COMBINATION APPROACH TO DELIGNIFICATION OF BIOMASS UNDER AMBIENT CONDITIONS
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United States of America Patent
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Issued Date -
Jun 16, 2022
app pub date -
Aug 17, 2021
filing date -
Aug 17, 2021
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Abstract
Method of delignification of plant material, said method comprising:
- providing said plant material comprising cellulose fibres and lignin;exposing said plant material requiring to a composition comprising: an acid;a modifying agent selected from the group consisting of: sulfamic acid; imidazole; N-alkylimidazole derivative; taurine; a taurine derivative; a taurine-related compound; alkylsulfonic acid; arylsulfonic acid; triethanolamine; and combinations thereof;a metal oxide; anda peroxide; adding an organic solvent to the resulting mixture;allowing a delignification reaction to occur for a period of time sufficient to remove at least 80% of the lignin present on said plant material.
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