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公开(公告)号：US20150152600A1
公开(公告)日：2015-06-04
申请号：US14390051
申请日：2013-04-03
CPC分类号： D21C9/12 , D21C9/1036 , D21C9/14 , D21C9/144 , D21H17/07 , D21H17/66 , D21H17/74 , D21H21/32
摘要： A method for bleaching pulp is provided. In the method at least one tertiary amine compound is introduced into a process stage of bleaching. This process stage is a stage which comprises mixing pulp and a chlorine compound capable of bleaching.
摘要翻译： 提供了一种漂白纸浆的方法。 在该方法中，将至少一种叔胺化合物引入漂白的工艺阶段。 该工艺阶段是包括混合纸浆和能够漂白的氯化合物的阶段。
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公开(公告)号：US10604589B2
公开(公告)日：2020-03-31
申请号：US14650666
申请日：2013-12-13
发明人： Taisto Tienvieri , Isko Kajanto , Tero Ojala , Sami Saarela , Markus Nuopponen , Timo Paakkonen , Tapani Vuorinen
摘要： Cellulose is oxidized catalytically using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical. The oxidation is performed in a reaction medium which is at medium consistency of cellulosic pulp, which is above 6%, more preferably equal to or higher than 8%, and most preferably in the range of 8-12%. The reaction medium is mixed in a reactor through circulation of the reaction medium back to the reactor.
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3.发明申请METHOD FOR CATALYTIC OXIDATION OF CELLULOSE AND METHOD FOR MAKING A CELLULOSE PRODUCT 有权纤维素催化氧化方法及制备纤维素产品的方法公开(公告)号：US20160201261A1
公开(公告)日：2016-07-14
申请号：US14913513
申请日：2014-09-02
发明人： Markus Nuopponen , Timo Paakkonen , Raili Ponni , Tapani Vuorinen
摘要： A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst and main oxidant acting as oxygen source comprises, before the catalytic oxidation of the cellulose, pretreatment of the cellulose—in an alkaline pretreatment step, where the cellulose is treated in alkaline solution having hydroxide concentration of above 0.3 M, and—in a washing step, where the cellulose treated in the alkaline solution is washed to lower the pH.
摘要翻译： 使用杂环硝酰自由基作为催化剂和作为氧源的主要氧化剂的纤维素催化氧化的方法包括在纤维素的催化氧化之前，在碱性预处理步骤中预处理纤维素，其中纤维素在碱性溶液中处理 具有高于0.3M的氢氧化物浓度，并且在洗涤步骤中，洗涤在碱性溶液中处理的纤维素以降低pH。
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4.发明申请METHOD FOR CATALYTIC OXIDATION OF CELLULOSE AND METHOD FOR MAKING A CELLULOSE PRODUCT 审中-公开纤维素催化氧化方法及制备纤维素产品的方法公开(公告)号：US20160160440A1
公开(公告)日：2016-06-09
申请号：US14907905
申请日：2014-07-29
摘要： A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical, comprises—a preliminary activation step of the heterocyclic nitroxyl radical with hypochlorite to activated catalyst, and after the preliminary activation step, a cellulose oxidation step using the activated catalyst and hypochlorite as the main oxidant to oxidize cellulose. In the cellulose oxidation step, fibrous starting material is subjected to the oxidation to oxidize the cellulose, whereafter the oxidized fibrous raw material is disintegrated to nanofibrillar cellulose (NFC).
摘要翻译： 使用杂环硝酰自由基作为催化剂，作为氧源的主要氧化剂和杂环硝酰基的活化剂的纤维素的催化氧化方法包括 - 将杂环硝酰自由基与次氯酸盐活化的催化剂的预活化步骤，以及后 预活化步骤，使用活化催化剂和次氯酸盐作为主要氧化剂来氧化纤维素的纤维素氧化步骤。 在纤维素氧化步骤中，对纤维原料进行氧化以氧化纤维素，然后氧化的纤维原料分解成纳米纤维素纤维素（NFC）。
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5.发明申请METHOD FOR CATALYTIC OXIDATION OF CELLULOSE AND METHOD FOR MAKING A CELLULOSE PRODUCT 审中-公开纤维素催化氧化方法及制备纤维素产品的方法公开(公告)号：US20150322171A1
公开(公告)日：2015-11-12
申请号：US14650666
申请日：2013-12-13
发明人： Taisto Tienvieri , Isko Kajanto , Tero Ojala , Sami Saarela , Markus Nuopponen , Timo Paakkonen , Tapani Vuorinen
IPC分类号： C08B15/04
CPC分类号： C08B15/04 , D21C9/00 , Y10T428/298
摘要： Cellulose is oxidized catalytically using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical. The oxidation is performed in a reaction medium which is at medium consistency of cellulosic pulp, which is above 6%, more preferably equal to or higher than 8%, and most preferably in the range of 8-12%. The reaction medium is mixed in a reactor through circulation of the reaction medium back to the reactor.
摘要翻译： 使用杂环硝酰基作为催化剂，作为氧源的主要氧化剂和杂环硝酰基的活化剂，氧化催化纤维素。 氧化在纤维素浆的中等稠度的反应介质中进行，其中6％以上，更优选等于或高于8％，最优选在8-12％的范围内。 将反应介质通过反应介质循环回到反应器中而在反应器中混合。
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公开(公告)号：US10767307B2
公开(公告)日：2020-09-08
申请号：US14907905
申请日：2014-07-29
摘要： A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical, comprises—a preliminary activation step of the heterocyclic nitroxyl radical with hypochlorite to activated catalyst, and after the preliminary activation step, a cellulose oxidation step using the activated catalyst and hypochlorite as the main oxidant to oxidize cellulose. In the cellulose oxidation step, fibrous starting material is subjected to the oxidation to oxidize the cellulose, whereafter the oxidized fibrous raw material is disintegrated to nanofibrillar cellulose (NFC).
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公开(公告)号：US09969816B2
公开(公告)日：2018-05-15
申请号：US14913513
申请日：2014-09-02
发明人： Markus Nuopponen , Timo Paakkonen , Raili Ponni , Tapani Vuorinen
摘要： A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst and main oxidant acting as oxygen source comprises, before the catalytic oxidation of the cellulose, pretreatment of the cellulose—in an alkaline pretreatment step, where the cellulose is treated in alkaline solution having hydroxide concentration of above 0.3 M, and—in a washing step, where the cellulose treated in the alkaline solution is washed to lower the pH.
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公开(公告)号：US09540767B2
公开(公告)日：2017-01-10
申请号：US14390051
申请日：2013-04-03
CPC分类号： D21C9/12 , D21C9/1036 , D21C9/14 , D21C9/144 , D21H17/07 , D21H17/66 , D21H17/74 , D21H21/32
摘要： A method for bleaching pulp is provided. In the method at least one tertiary amine compound is introduced into a process stage of bleaching. This process stage is a stage which comprises mixing pulp and a chlorine compound capable of bleaching.
摘要翻译： 提供了一种漂白纸浆的方法。 在该方法中，将至少一种叔胺化合物引入漂白的工艺阶段。 该工艺阶段是包括混合纸浆和能够漂白的氯化合物的阶段。
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