![PROCESS FOR PRODUCING MECHANICAL PULP](/ep/2012/04/11/EP2438235A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: PROCESS FOR PRODUCING MECHANICAL PULP
- 专利标题(中):VERFAHREN ZUR HERSTELLUNG VON HOLZSTOFF
- 申请号:EP10724032.7 申请日:2010-05-27
- 公开(公告)号:EP2438235A1 公开(公告)日:2012-04-11
- 发明人: HELLSTRÖM, Pia , NILSSON, Pär , WALTER, Karin Susanne Maria , JOHANSSON, Patrik , WACKERBERG, Eva Linnea Elisabeth , PAULSSON, Magnus Lars
- 申请人: Akzo Nobel Chemicals International B.V.
- 申请人地址: Stationsstraat 77 3811 MH Amersfoort NL
- 专利权人: Akzo Nobel Chemicals International B.V.
- 当前专利权人: Akzo Nobel Chemicals International B.V.
- 当前专利权人地址: Stationsstraat 77 3811 MH Amersfoort NL
- 代理机构: De Vries, Adriaan Jacobus
- 优先权: EP09161636 20090602; US183275P 20090602
- 国际公布: WO2010139589 20101209
- 主分类号: D21C1/08
- IPC分类号: D21C1/08
摘要:
The present invention relates to a process for preparing a high-yield pulp comprising a) treating a lignocellulose containing material chemically by means of an oxidising system comprising at least one non-enzymatic oxidant and an activator and optionally an alkali at a pH from about 2 to about 6.5; and b) treating the lignocellulose containing material mechanically in at least one mechanical treatment stage for a time sufficient to produce a high-yield pulp, wherein the lignocellulose containing material is chemically treated prior to and/or during at least one mechanical treatment stage, wherein the temperature of the lignocellulosic material before, during and/or after at least one mechanical treatment stage of the process ranges from about 45°C to about 200°C for a period of time ranging from about 1 second to about 5 hours and wherein oxidant is present: wherein oxidant is present: (i) after addition of alkali provided alkali is added to the oxidising system and/or (ii) after said at least one mechanical treatment stage.
摘要(中):
本发明涉及一种制备高产量纸浆的方法,该方法包括:a)通过包含至少一种非酶催化剂和活化剂的氧化系统和任选的碱在pH值从约2℃下化学处理含木素纤维素的材料 至约6.5; 和b)在至少一个机械处理阶段中将所述含木素纤维素的材料机械处理足以产生高产量纸浆的时间,其中所述含木素纤维素的材料在至少一个机械处理阶段之前和/或期间被化学处理,其中 在该方法的至少一个机械处理阶段之前,期间和/或之后的木质纤维素材料的温度为约45℃至约200℃,时间为约1秒至约5小时,其中氧化剂 存在:其中存在氧化剂:(i)在加入碱后,将碱加入到氧化体系中和/或(ii)所述至少一个机械处理阶段之后。
IPC结构图谱:
D | 纺织;造纸 |
--D21 | 造纸;纤维素的生产 |
----D21C | 从含纤维素原料中除去非纤维素物质生产纤维素;制浆药液的再生;所需设备 |
------D21C1/00 | 蒸煮前经过精细分裂的原料的预处理 |
--------D21C1/08 | .用产生氧的化合物 |