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公开(公告)号：EP2855765B1
公开(公告)日：2016-11-02
申请号：EP13725949.5
申请日：2013-05-28
CPC分类号： D21C9/004 , C08B9/00 , C08H8/00 , D21C3/02 , D21C3/022 , D21C3/045 , D21C9/02 , D21C9/18 , D21C11/0007 , D21C11/0057 , D21H11/04
摘要： The invention relates to processes for manufacturing pulp and more specifically to improved processes for manufacturing dissolving pulp. The processes have primarily been developed to be used in connection with large scale kraft processes, i.e. they have been designed to be incorporated into a plant. A liquor derivable from the process and comprising xylan, lignin, alkali and water is also disclosed as well as a dissolving pulp produced by the process.
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公开(公告)号：EP3536829A1
公开(公告)日：2019-09-11
申请号：EP18160142.8
申请日：2018-03-06
摘要： The present invention provides a lyocell fiber with increased water retention value and decreased crystallinity as well as a method for producing same and products comprising same.
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公开(公告)号：EP2016222B1
公开(公告)日：2017-05-03
申请号：EP07718436.4
申请日：2007-05-09
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公开(公告)号：EP3762523A1
公开(公告)日：2021-01-13
申请号：EP19707834.8
申请日：2019-03-06
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5.发明授权VERFAHREN ZUR HERSTELLUNG EINES CELLULOSISCHEN FORMKÖRPERS 有权VERFAHREN ZUR HERSTELLUNG EINES CELLULOSISCHENFORMKÖRPERS
公开(公告)号：EP2929071B1
公开(公告)日：2017-02-01
申请号：EP13801568.0
申请日：2013-12-04
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公开(公告)号：EP2929071A1
公开(公告)日：2015-10-14
申请号：EP13801568.0
申请日：2013-12-04
摘要： The invention relates to a method for producing a cellulosic molded body in accordance with the viscose method by shaping a spinning mass containing cellulose xanthate. The method is characterized in that xylan is added to the cellulose xanthate at a fraction of at least 1 wt%, with respect to cellulose, preferably 1 wt% to 20 wt%, especially preferably 3 wt% to 15 wt%. The invention further relates to cellulosic molded bodies, obtained in accordance with the viscose method, having a fraction of high-molecular-weight xylan having an average degree of polymerization (DP) of 75 to 350, preferably 110 to 220, of at least 0.5 wt%, preferably 2 wt% to 8 wt%.
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公开(公告)号：EP2855765A1
公开(公告)日：2015-04-08
申请号：EP13725949.5
申请日：2013-05-28
CPC分类号： D21C9/004 , C08B9/00 , C08H8/00 , D21C3/02 , D21C3/022 , D21C3/045 , D21C9/02 , D21C9/18 , D21C11/0007 , D21C11/0057 , D21H11/04
摘要： The invention relates to processes for manufacturing pulp and more specifically to improved processes for manufacturing dissolving pulp. The processes have primarily been developed to be used in connection with large scale kraft processes, i.e. they have been designed to be incorporated into a plant. A liquor derivable from the process and comprising xylan, lignin, alkali and water is also disclosed as well as a dissolving pulp produced by the process.
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公开(公告)号：EP2016222A1
公开(公告)日：2009-01-21
申请号：EP07718436.4
申请日：2007-05-09
IPC分类号： D21C9/00
摘要： The invention relates to a method for producing a chemical conversion pulp from a cellulose starting material by kraft pulping, comprising the step of cooking the starting material with a cooking liquor. The method according to the invention is characterized by exposing the starting material to a steam treatment prior to cooking and by subjecting the pulp obtained by cooking to cold caustic extraction (CCE) during its further processing.
摘要翻译： 在煮沸之前，将原料进行蒸汽处理。 在进一步处理过程中，将通过煮沸得到的纤维素进行冷碱提取。 蒸汽处理在120℃以上，P值为50以下。 使用150℃-180℃的中压蒸汽。 在煮沸之前，原料被浸渍。 浸渍和蒸汽处理在连续分批沸腾过程中在同一锅炉中进行。 在冷碱提取过程中产生的部分压榨液碱，通过膜过滤，特别是通过纳米或超滤进行纯化。 在两个分离阶段之间，第一阶段的滞留物用水稀释。 从膜分离阶段的部分滞留物中回收含有的半纤维素，特别是木聚糖。 对于降水反转，使用无机酸，CO 2和一价或多元醇。 回收的木聚糖通过水解热解或酶水解进一步加工成低聚木糖。 该方法与纸纤维素的制造相结合。 将从冷碱萃取中回收的一部分压滤液和/或在压滤液上进行的膜过滤的渗余物的一部分加入到纸纤维素制造的沸腾过程的沸腾碱液中。 将来自煮沸的纤维素进行常规漂白处理和调节聚合度的处理。 这包括氧化漂白，酸水解和电子束照射，后者详细描述了条件。 使用碱过氧化物处理。 沸腾分两个阶段进行，如所要求的那样，密切相关的披露。 对由纤维素制造的纤维的性质进行定量。 包括通过旋转化学纤维素材料生产的lyocell和粘胶纤维的独立权利要求。
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