Modified alkanesulfonic acid and uses thereof
AssigneeSixring Inc.
InventorsClay Purdy, Markus Weissenberger, Kyle G. Wynnyk, Karl W. Dawson
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Abstract
Method of delignification of plant material, said method comprising: providing said plant material comprising cellulose fibers and lignin; exposing said plant material requiring to a composition comprising: alkanesulfonic acid; and a peroxide, wherein said alkylsulfonic acid and peroxide are present in a molar ratio ranging 1:1 to 15:1 and the time of exposure is sufficient to remove substantially all of the lignin present on said plant material. Compositions capable of achieving delignification are also disclosed.
Claims14
An aqueous acidic composition comprising:
- an alkylsulfonic acid;
- a peroxide;
- and
- a compound comprising an amine moiety selected from an alkanolamine,
- wherein said alkylsulfonic acid is present in the composition in an amount ranging from 20 to 65 wt % of the total weight of the composition;
- wherein said peroxide is present in the composition in an amount ranging from 1 to 30 wt % of the total weight of the composition;
- and
- wherein said alkylsulfonic acid and said peroxide are present in the composition in a molar ratio of no less than 1:1.
An aqueous composition comprising:
- alkylsulfonic acid;
- a peroxide;
- and
- a compound comprising an amine moiety selected from an alkanolamine,
- wherein said alkylsulfonic acid is present in the composition in an amount ranging from 20 to 65 wt % of the total weight of the composition;
- wherein said peroxide is present in the composition in an amount ranging from 1 to 30 wt % of the total weight of the composition;
- and
- wherein said alkylsulfonic acid and said peroxide are present in the composition in a molar ratio ranging from 1:1 to 15:1,
- wherein said composition is suitable for delignifying biomass or wood.
A method of delignifying biomass or plant material, said method comprising:
- providing said biomass or plant material comprising cellulose fibers and lignin;
- and
- exposing said biomass or plant material to a composition comprising:
- alkylsulfonic acid;
- a peroxide;
- and
- a compound comprising an amine moiety selected from an alkanolamine,
- wherein said alkylsulfonic acid is present in the composition in an amount ranging from 20 to 65 wt % of the total weight of the composition;
- wherein said peroxide is present in the composition in an amount ranging from 1 to 30 wt % of the total weight of the composition;
- and
- wherein said alkylsulfonic acid and said peroxide are present in the composition in a molar ratio ranging from 1:1 to 15:1;
- for a period of time sufficient to remove substantially all lignin present on said biomass or plant material.
Dependencies are inferred from the claim text.