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1. 发明申请

US20110036524A1 METHOD OF BLEACHING A PULP 失效
标题翻译：漂白纸浆的方法
公开(公告)号：US20110036524A1
公开(公告)日：2011-02-17
申请号：US12867985
申请日：2009-02-12
申请人： Mårten Dahl , Sara Eriksson , Solveig Nordén
发明人： Mårten Dahl , Sara Eriksson , Solveig Nordén
IPC分类号： D21C9/02
CPC分类号： D21C9/14 , D21C9/1036 , D21C9/147 , D21C9/16
摘要： Methods for bleaching oxygen delignified and washed pumps having a consistency of between 8 and 20% are disclosed including a first chlorine dioxide bleaching step, washing the bleached pulp, subjecting the washed pulp to an alkaline extraction step to obtain an alkali-containing pulp, adding chlorine dioxide and adjusting the pH in a second chlorine dioxide bleaching step performed directly after the alkaline extraction step without an intermediate washing step, and subjecting the bleached alkali-containing pulp to a peroxide treatment step directly after the second chlorine dioxide bleaching step or with an intermediate washing step prior to the peroxide treatment step.
摘要翻译：公开了漂白氧脱木素和洗涤的泵的方法，其具有8至20％的稠度，其包括第一二氧化氯漂白步骤，洗涤漂白纸浆，对经洗涤的纸浆进行碱性萃取步骤以获得含碱浆，加入二氧化氯，并且在没有中间洗涤步骤的碱性提取步骤后直接进行的第二二氧化氯漂白步骤中调节pH，并且在第二次二氧化氯漂白步骤之后直接对漂白的含碱纸浆进行过氧化物处理步骤在过氧化物处理步骤之前的中间洗涤步骤。

2. 发明授权

US07182835B2 Two-stage chlorine bleaching process with filtrate recirculation 失效
标题翻译：两步氯漂洗过程与滤液再循环
公开(公告)号：US07182835B2
公开(公告)日：2007-02-27
申请号：US10344425
申请日：2001-08-14
申请人： Lars-Åke Lindström , Solveig Nordén , Gunnar Carré
发明人： Lars-Åke Lindström , Solveig Nordén , Gunnar Carré
IPC分类号： D21C9/10 , D21C9/14 , D21C9/18
CPC分类号： D21C9/144
摘要： Methods for bleaching chemical pulp are disclosed including dewatering the pulp to a concentration of from 25 to 40%, bleaching in a first chlorine dioxide stage, followed by a second alkaline bleaching stage, followed by a third chlorine dioxide bleaching stage, dewatering the bleached pulp to a concentration of from 10 to 40% and producing a filtrate, and recycling the filtrate to control the pulp concentration of the dewatered chemical pulp to from 8 to 15% in the first bleaching stage.
摘要翻译：公开了漂白化学纸浆的方法，包括将纸浆脱水至浓度为25至40％，在第一二氧化氯阶段漂白，随后进行第二碱性漂白阶段，随后进行第三次二氧化氯漂白阶段，将漂白纸浆脱水浓度为10〜40％，生成滤液，在第一漂白阶段中将滤液再循环至控制脱水化学浆的纸浆浓度为8〜15％。

3. 发明授权

US06319357B1 Method for two-stage oxygen bleaching and delignification of chemical pulp 失效
标题翻译：化学纸浆两步氧漂和脱木质的方法
公开(公告)号：US06319357B1
公开(公告)日：2001-11-20
申请号：US09759032
申请日：2001-01-12
申请人： Monica Bokström , Pia Mellander , Solveig Nordén
发明人： Monica Bokström , Pia Mellander , Solveig Nordén
IPC分类号： D21C9147
CPC分类号： D21C9/147
摘要： Methods for oxygen delignification of a pulp are disclosed, including initially delignifying the pulp at a delignification temperature of less than 90° C., adding oxygen to the pulp so that the oxygen is present during the initial delignification step, and further delignifying the pulp at a delignification temperature of greater than 90° C., the difference between the two delignification temperatures being less than about 20° C., and the pressure being greater in the initial delignification step. The method also includes adding alkali solely to the initial delignification step in order to obtain high alkalinity therein.
摘要翻译：公开了一种纸浆氧脱木质的方法，包括首先在低于90℃的脱木质素温度下脱木质纤维，向纸浆中加入氧，使得在初始脱木质步骤期间存在氧，并进一步脱木素脱木素温度大于90℃，两个脱木质素温度之间的差异小于约20℃，并且初始脱木质步骤中的压力较大。该方法还包括仅在初始脱木素步骤中加入碱以获得其中的高碱度。

4. 发明授权

US06221206B1 Method for oxygen delignification of a digested pulp 失效
标题翻译：消化纸浆氧脱木质的方法
公开(公告)号：US06221206B1
公开(公告)日：2001-04-24
申请号：US08927925
申请日：1997-09-11
申请人： Monica Bokström , Pia Mellander , Solveig Nordén
发明人： Monica Bokström , Pia Mellander , Solveig Nordén
IPC分类号： D21C326
CPC分类号： D21C9/147
摘要： Methods for oxygen delignification of a pulp are disclosed, including initially delignifying the pulp at a delignification temperature of less than 90° C., adding oxygen to the pulp so that the oxygen is present during the initial delignification step, and further delignifying the pulp at a delignification temperature of greater than 90° C., the difference between the two delignification temperatures being less than about 20° C., and the pressure being greater in the initial delignification step. The method also includes adding alkali solely to the initial delignification step in order to obtain high alkalinity therein.
摘要翻译：公开了一种纸浆氧脱木质的方法，包括首先在低于90℃的脱木质素温度下脱木质纤维，向纸浆中加入氧，使得在初始脱木质步骤期间存在氧，并进一步脱木素脱木素温度大于90℃，两个脱木质素温度之间的差异小于约20℃，并且初始脱木质步骤中的压力较大。该方法还包括仅在初始脱木素步骤中加入碱以获得其中的高碱度。

5. 发明授权

US08257550B2 Method of bleaching a pulp 失效
标题翻译：漂白纸浆的方法
公开(公告)号：US08257550B2
公开(公告)日：2012-09-04
申请号：US12867985
申请日：2009-02-12
申请人： Mårten Dahl , Sara Eriksson , Solveig Nordén
发明人： Mårten Dahl , Sara Eriksson , Solveig Nordén
IPC分类号： D21C9/14 , D21C9/16 , D21C9/02
CPC分类号： D21C9/14 , D21C9/1036 , D21C9/147 , D21C9/16
摘要： Methods for bleaching oxygen delignified and washed pumps having a consistency of between 8 and 20% are disclosed including a first chlorine dioxide bleaching step, washing the bleached pulp, subjecting the washed pulp to an alkaline extraction step to obtain an alkali-containing pulp, adding chlorine dioxide and adjusting the pH in a second chlorine dioxide bleaching step performed directly after the alkaline extraction step without an intermediate washing step, and subjecting the bleached alkali-containing pulp to a peroxide treatment step directly after the second chlorine dioxide bleaching step or with an intermediate washing step prior to the peroxide treatment step.
摘要翻译：公开了漂白氧脱木素和洗涤的泵的方法，其具有8至20％的稠度，其包括第一二氧化氯漂白步骤，洗涤漂白纸浆，对经洗涤的纸浆进行碱性萃取步骤以获得含碱浆，加入二氧化氯，并且在没有中间洗涤步骤的碱性提取步骤后直接进行的第二二氧化氯漂白步骤中调节pH，并且在第二次二氧化氯漂白步骤之后直接对漂白的含碱纸浆进行过氧化物处理步骤在过氧化物处理步骤之前的中间洗涤步骤。

6. 发明授权

US06454900B2 Method for two-stage oxygen delignification of chemical pulp 失效
标题翻译：化学纸浆二级氧脱木质方法
公开(公告)号：US06454900B2
公开(公告)日：2002-09-24
申请号：US09886913
申请日：2001-06-21
申请人： Monica Bokström , Pia Mellander , Solveig Nordén
发明人： Monica Bokström , Pia Mellander , Solveig Nordén
IPC分类号： D21C326
CPC分类号： D21C9/147
摘要： Methods for oxygen delignification of a pulp are disclosed, including initially delignifying the pulp at a delignification temperature of less than 90° C., adding oxygen to the pulp so that the oxygen is present during the initial delignification step, and further delignifying the pulp at a delignification temperature of greater than 90° C., the difference between the two delignification temperatures being less than about 20° C., and the pressure being greater in the initial delignification step. The method also includes adding alkali solely to the initial delignification step in order to obtain high alkalinity therein.
摘要翻译：公开了一种纸浆氧脱木质的方法，包括首先在低于90℃的脱木质素温度下脱木质纤维，向纸浆中加入氧，使得在初始脱木质步骤期间存在氧，并进一步脱木素脱木素温度大于90℃，两个脱木质素温度之间的差异小于约20℃，并且初始脱木质步骤中的压力较大。该方法还包括仅在初始脱木素步骤中加入碱以获得其中的高碱度。

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