发明名称 PROCESS FOR THE DERESINATION OF PULP AND USE OF CARBON DIOXIDE OR (BI) CARBONATE THEREFOR
摘要 The invention relates to a process for the deresination of pulp as well as to the use of carbon dioxide or a (bi)carbonate compound for the deresination of pulp. The process concerns the removal of wood extractives or resin from an aqueous pulp suspension in an alkaline process stage of the pulping process, such as an oxygen delignification stage, at a pH above 10. Carbonate ions are provided in the pulp at the high pH for solubilizing a significant part of the wood extractives in the pulp. The alkaline pulp is dewatered to remove solubilized extractives and for providing a deresinated pulp.
申请公布号 US2010024997(A1) 申请公布日期 2010.02.04
申请号 US20070440323 申请日期 2007.09.07
申请人 LINDE AKTIENGESELLSCHAFT 发明人 TIGERSTROM ANNA
分类号 D21C9/16;D21C3/02 主分类号 D21C9/16
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