发明名称 Method for hydrogen peroxide bleaching of pulp using an organic solvent in the bleaching medium
摘要 Disclosed is a method for pulp bleaching. The method comprises the steps of providing a pulp sample for bleaching, the pulp sample stemming from a pulp producing process, providing a bleaching liquor comprising water and an organic component as solvent components constituting a bleaching medium, dissolved within are at least a bleaching agent, and a basic agent; and subjecting the pulp sample to the bleaching liquor for a predefined amount of time at predefined bleaching conditions. A preferred bleaching agent is hydrogen peroxide. The organic component amounts to at least 5% in weight of the bleaching medium.
申请公布号 US6923887(B2) 申请公布日期 2005.08.02
申请号 US20030369688 申请日期 2003.02.21
申请人 ALBERTA RESEARCH COUNCIL INC. 发明人 PAN GEORGE
分类号 D21B1/16;D21C5/02;D21C9/12;D21C9/16;(IPC1-7):D21C9/16 主分类号 D21B1/16
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