发明名称 |
METHOD FOR TREATING LIGNO-CELLULOSIC MATERIALS |
摘要 |
<p>The present invention relates to a method for treating pectin-containing ligno- cellulosic raw materials in a high-yield pulping process utilizing one or more treatment stages at alkaline conditions. The invention provides a method for controlling the alkaline treatment step, wherein the alkali is applied at a low temperature treatment stage before one or more consecutive treatment stages at the same or higher temperature. The present invention also provides pulp, paper, board or tissue obtained with said method.</p> |
申请公布号 |
WO2009050336(A1) |
申请公布日期 |
2009.04.23 |
申请号 |
WO2008FI50574 |
申请日期 |
2008.10.15 |
申请人 |
KEMIRA OYJ;PRANOVICH, ANDREY;HOLMBOM, BJARNE;KONN, JONAS |
发明人 |
PRANOVICH, ANDREY;HOLMBOM, BJARNE;KONN, JONAS |
分类号 |
D21C3/00;D21B1/12;D21C3/02;D21C9/08 |
主分类号 |
D21C3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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