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公开(公告)号：US20240263394A1
公开(公告)日：2024-08-08
申请号：US18638250
申请日：2024-04-17
Applicant: SixRing Inc
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G WYNNYK
Abstract: A one-pot process to separate lignin from a lignocellulosic feedstock includes providing a vessel; providing a lignocellulosic feedstock; providing a composition comprising an acid, a modifying agent comprising a carbonyl-containing nitrogenous base compound, and a peroxide; 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; and optionally, removing a liquid phase comprising dissolved lignin fragments from a solid phase comprising cellulose fibres.
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公开(公告)号：US20220267952A1
公开(公告)日：2022-08-25
申请号：US17407424
申请日：2021-08-20
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G. WYNNYK
IPC: D21C3/00
Abstract: An aqueous composition comprising: sulfuric acid; an alkanesulfonic acid; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
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公开(公告)号：US20220195665A1
公开(公告)日：2022-06-23
申请号：US17405029
申请日：2021-08-18
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G WYNNYK , Matthew DEWIT , Andrew C CORBETT
IPC: D21C3/04
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; taurine; a taurine derivative; a taurine-related compound; alkylsulfonic acid; aryl sulfonic acid; triethanolamine; and combinations thereof; a metal salt; and a peroxide; for a period of time sufficient to remove substantially all (at least 80%) of the lignin present on said plant material.
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公开(公告)号：US20240318381A1
公开(公告)日：2024-09-26
申请号：US18736335
申请日：2024-06-06
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G. WYNNYK
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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公开(公告)号：US20240229354A1
公开(公告)日：2024-07-11
申请号：US18608493
申请日：2024-03-18
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G WYNNYK
Abstract: An aqueous composition comprising: sulfuric acid; a heterocyclic compound; an alkanesulfonic acid; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
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Patent Agency Ranking
公开(公告)号：US20220267953A1
公开(公告)日：2022-08-25
申请号：US17407447
申请日：2021-08-20
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G WYNNYK
IPC: D21C3/00
Abstract: An aqueous composition comprising: sulfuric acid; a substituted aromatic compound; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
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公开(公告)号：US20220267956A1
公开(公告)日：2022-08-25
申请号：US17407477
申请日：2021-08-20
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G. WYNNYK
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.
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公开(公告)号：US20220267955A1
公开(公告)日：2022-08-25
申请号：US17407528
申请日：2021-08-20
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G WYNNYK
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.
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公开(公告)号：US20220267150A1
公开(公告)日：2022-08-25
申请号：US17407401
申请日：2021-08-20
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G. WYNNYK
Abstract: An aqueous composition comprising: sulfuric acid; a modifying agent comprising an amine group; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
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公开(公告)号：US20220170206A1
公开(公告)日：2022-06-02
申请号：US17405026
申请日：2021-08-18
Applicant: SixRing Inc.
Inventor： Clay PURDY , Markus WEISSENBERGER , Markus PAGELS , Kyle G WYNNYK , Matthew DEWIT , Andrew C CORBETT
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 capping agent; and a peroxide; for a period of time sufficient to remove substantially all (at least 80%) of the lignin present on said plant material. Also disclosed are compositions to accomplish such delignification and processes using such.
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