发明授权
- 专利标题: Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate
- 专利标题(中): 二氧化氯纸浆漂白工艺通过回收氯化废液滤液而减少了钡垢
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申请号: US09100158申请日: 1998-06-18
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公开(公告)号: US06315863B1公开(公告)日: 2001-11-13
- 发明人: David B. Jack
- 申请人: David B. Jack
- 主分类号: D21C914
- IPC分类号: D21C914
摘要:
Collection of a post-chlorination washer filtrate and recycle thereof to acidify a wood pulp stream entering the initial chlorine dioxide bleaching stage is provided in order to reduce the formation of barium scale.