基本信息:
- 专利标题： Method for bleaching mechanically defibered pulp
- 专利标题（中）：漂白机械脱纤维纸浆的方法
- 申请号：US10500738 申请日：2003-01-22
- 公开(公告)号：US20060124257A9 公开(公告)日：2006-06-15
- 发明人： Teemu Tanner
- 申请人： Teemu Tanner
- 优先权： FI20020123 20020123
- 国际申请： PCT/FI03/00051 WO 20030122
- 主分类号： D21C11/00
- IPC分类号： D21C11/00
摘要：
The invention relates to a method for bleaching mechanically defibered pulp with peroxide in alkaline conditions and for washing the bleached pulp and recovering chemicals from the spent liquor the bleaching step by concentrating and combusting the spent liquor and subsequently dissolving the ash thus formed into water. According to the invention, the alkaline conditions of the bleaching step are obtained by adding sodium aluminate to the pulp to be bleached, at least a part of the added sodium aluminate being the ash dissolved in water.
摘要（中）：
本发明涉及一种在碱性条件下用过氧化物漂白机械脱纤维的纸浆的方法，用于洗涤漂白的纸浆并通过浓缩和燃烧废液从废液中回收化学品的漂白步骤，随后将由此形成的灰分溶解在水中。 根据本发明，漂白步骤的碱性条件是通过向待漂白的纸浆中加入铝酸钠，至少一部分加入的铝酸钠是灰分溶解在水中。
公开/授权文献:
- US20050098279A1 Method for bleaching mechanically defibered pulp 公开/授权日：2005-05-12