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公开(公告)号:US20040112557A1
公开(公告)日:2004-06-17
申请号:US10731359
申请日:2003-12-09
申请人: Weyerhaeuser Company
IPC分类号: D21C003/00
CPC分类号: D21C9/163 , D21B1/16 , D21C9/1036 , D21C9/1042 , D21C9/18 , D21D1/20
摘要: Methods of bleaching mechanical pulp under alkaline conditions with hydrogen peroxide. The methods include introducing a source of magnesium ions and hydroxyl ions to a refiner. The wood particulates are refined into a pulp in the presence of the magnesium ions and hydroxyl ions, and optionally perhydroxyl ions to simultaneously refine and bleach the pulp in a refiner.
摘要翻译: 在碱性条件下用过氧化氢漂白机械纸浆的方法。 所述方法包括将镁离子和羟基离子源引入精磨机。 在镁离子和羟基离子的存在下,将木质微粒精制成纸浆,以及任选的全羟基离子,以在精炼机中同时精制和漂白纸浆。