NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL
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United States of America Patent
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Issued Date -
Sep 6, 2018
app pub date -
Aug 29, 2016
filing date -
Aug 29, 2016
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Abstract
Some variations provide a process for producing a nanocellulose material, comprising: providing a biomass feedstock comprising a bleached or unbleached pulp material; fractionating the feedstock in the presence of an acid, a solvent for lignin, and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form cellulose fibrils and/or cellulose crystals, thereby generating a nanocellulose material. The process is preferably co-located with, or adjacent to, a mill that generates the pulp material. There are several advantages of a bolt-on AVAP® nanocellulose plant to an existing pulp mill, as disclosed herein.
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