System and method for oxygen delignification of pulp made for lignocellulosic material
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United States of America Patent
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app pub date -
Jul 16, 2005
filing date -
Jul 6, 1999
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Abandoned
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Abstract
The system is for the oxygen delignification, in at least two reaction stages, of pulp that consists of lignocellulose-containing material having a mean concentration of 8-18% pulp consistency. The system has a first pump followed by a first oxygen mixer that is followed by a first delignification zone. The first delignification zone is followed by a second steam mixer that is followed by a second pump that is followed by a third oxygen mixer and a second delignification zone.
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