Method for the production of precleaned pulp
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United States of America Patent
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Mar 18, 2003
Issued Date -
N/A
app pub date -
Jun 8, 2000
filing date -
Dec 8, 1997
priority date (Note) -
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Abstract
A method for preparing pulp from lignin-containing cellulosic material is disclosed, including a step for acid cleaning of the lignocellulosic material, followed by alkaline delignification. The acidic step removes undesired components such as metal ions and side groups of polysaccharides, which may have adverse effects on the process especially when extensive recycling of liquors is employed within the plant.
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Cited Art Landscape
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