Method for producing a cellulose suspension
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United States of America Patent
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Aug 26, 2003
Grant Date -
N/A
app pub date -
May 15, 2001
filing date -
Aug 17, 1998
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Abstract
A procedure to continuously produce a suspension of cellulose in aqueous N-methylmorpholine-N-oxide is characterized in that: (a) The cellulose is conveyed through a first shearing zone in the absence of N-methylmorpholine-N-oxide and is homogenized, and (b) the homogenized cellulose is conveyed through a second shearing zone after adding enough aqueous N-methylmorpholine-N-oxide for a suspension to result in a N-methylmorpholine-N-oxide content in the liquid phase of 70-80 weight percent after mixing, whereby the cellulose or suspension almost completely fills the available content cross-section in the shearing zones.
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