Production of a fermentation product
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United States of America Patent
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Oct 27, 2009
Grant Date -
Jul 26, 2007
app pub date -
Jan 20, 2005
filing date -
Feb 4, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process of separating suspended solids from a fermentation liquor by subjecting the liquor to a solids-liquid separation stage, wherein the fermentation liquor is produced in a fermentation process for the production of a fermentation product, and which liquor comprises lignin, wherein the solids-liquid separation stage is assisted by a treatment system, characterized in that the treatment system comprises an anionic polymer, with the proviso that the treatment system and does not include a cationic polymer having an intrinsic viscosity (IV) of at least 4 dl/g.
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