发明授权
- 专利标题： Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage
- 专利标题（中）： 第一阶段过氧化物增强的木质纤维素纤维氧脱木质的两阶段工艺
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申请号： US354522申请日： 1989-05-19
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公开(公告)号： US5011572A公开(公告)日： 1991-04-30
- 发明人: V. R. Parthasarathy , Meenaksi Sundaram , Hasan Jameel , Josef S. Gratzl , Ronald J. Klein
- 申请人： V. R. Parthasarathy , Meenaksi Sundaram , Hasan Jameel , Josef S. Gratzl , Ronald J. Klein
- 申请人地址： PA Philadelphia NC Raleigh
- 专利权人： FMC Corporation,North Carolina State University
- 当前专利权人： FMC Corporation,North Carolina State University
- 当前专利权人地址： PA Philadelphia NC Raleigh
- 主分类号： D21C9/10
- IPC分类号： D21C9/10 ; D21C9/147 ; D21C9/16
摘要：
A process is provided for a two-stage oxygen delignification of chemical pulp in which 0.01% to 1% hydrogen peroxide is incorporated into the first and, optionally the second stage. The invention is particularly suitable when the pulp is subsequently bleached with at least one chlorine dioxide stage and at least one hydrogen peroxide stage.
公开/授权文献
- US5438919A Egg separator 公开/授权日：1995-08-08
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