USE OF A 2 LIQUID PHASE SYSTEM IN BIOMASS DELIGNIFICATION

USE OF A 2 LIQUID PHASE SYSTEM IN BIOMASS DELIGNIFICATION

Method for controlled delignification of lignocellulosic feedstock, said method comprising the steps of:providing a reactive phase of pH less than 1, said reactive phase comprising:water;sulfuric acid;a source of peroxide;a modifying agent, said modifying agent adapted to control the reactivity of t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WYNNYK, Kyle G, WEISSENBERGER, Markus, PURDY, Clay, DEWIT, Matthew, CORBETT, Andrew C, PAGELS, Markus
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ADHESIVES
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
APPARATUS THEREFOR
CHEMISTRY
COMPOSITIONS BASED THEREON
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
DYES
GENERAL PROCESSES OF COMPOUNDING
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PAPER-MAKING
POLISHES
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Beschreibung
Zusammenfassung:Method for controlled delignification of lignocellulosic feedstock, said method comprising the steps of:providing a reactive phase of pH less than 1, said reactive phase comprising:water;sulfuric acid;a source of peroxide;a modifying agent, said modifying agent adapted to control the reactivity of the sulfuric acid;providing a holding phase, said holding phase comprising an organic solvent which does not react with the aqueous acidic composition;combining said reactive phase and holding phase to form a reaction mixture;exposing a lignocellulosic material to said reaction mixture for a period of time sufficient to allow delignification of the lignocellulosic material.