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    Process for chemically hardening wood
    1.
    发明授权
    Process for chemically hardening wood 失效
    化学硬化木材的方法

    公开(公告)号：US5188707A

    公开(公告)日：1993-02-23

    申请号：US818429

    申请日：1991-12-26

    申请人： John Gordy

    发明人： John Gordy

    IPC分类号： B27K5/06 ,  B27L3/00 ,  D21C3/00

    CPC分类号： D21C3/003 ,  B27L3/00 ,  C08H6/00 ,  C08H8/00

    摘要： A method of hardening wood using a pulping agent for the chemical separation of lignin from cellulose in the wood without damage to either component. The pulping agent comprises the reaction product of (a) a compound produced by electrolytic oxidation of a predetermined amount of a loweralkanolamine in aqueous solution and neutralized with a strong mineral acid, with (b) the loweralkanolamine used in excess relative to the predetermined amount of loweralkanolamine subjected to the electrolytic oxidation. Also disclosed are processes utilizing such a pulping agent for chemically debarking whole logs as well as for converting soft wood into hard wood.

    摘要翻译： 使用制浆剂对木材进行硬化的方法，用于将木质素与木材中的纤维素化学分离，而不损害任何一种组分。 制浆剂包括（a）通过电解氧化制备的预定量的低级烷醇胺在水溶液中并用强无机酸中和的反应产物，（b）相对于预定量的 低级烷醇胺进行电解氧化。 还公开了使用这种制浆剂用于化学剥皮整个原木以及将软木材转化成硬木的方法。

    Method for the debarking of logs
    3.
    发明授权
    Method for the debarking of logs 失效
    记录日志的方法

    公开(公告)号：US5103883A

    公开(公告)日：1992-04-14

    申请号：US639668

    申请日：1990-12-24

    申请人： Liisa Viikari ,  Marjaana Ratto ,  Anne Kantelinen

    发明人： Liisa Viikari ,  Marjaana Ratto ,  Anne Kantelinen

    IPC分类号： B27L3/00

    CPC分类号： B27L3/00

    摘要： A method for the debarking of logs is disclosed, which comprises treating the logs with enzymes to weaken the bonds between the bark and wood. An apparatus is also disclosed for the debarking of logs, comprising a conveyor for conveying the logs to a debarker, a piping system with nozzles for spraying the logs with an enzyme solution, a device for separating the enzyme solution from the logs and conducting it back into the piping system, and a feed device for supplying enzyme solution into the circulation system.