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1.发明公开METHOD AND SYSTEM FOR PULP PROCESSING USING COLD CAUSTIC EXTRACTION WITH ALKALINE FILTRATE REUSE 有权方法和设备使用一冷，碱提法重用碱性滤液处理纸浆
公开(公告)号：EP2567022A1
公开(公告)日：2013-03-13
申请号：EP10771810.8
申请日：2010-08-18
CPC分类号： D21C1/06 , D21C3/02 , D21C11/0021 , D21C11/0028 , D21C11/0035 , D21C11/0064 , D21C11/0085 , D21C11/10
摘要： A method for pulp processing includes a cold caustic extraction stage in which the spent cold caustic solution and the spent liquid used to wash the extracted pulp are concentrated by an evaporation system. The concentrated liquid can be used as part of the neutralization and cooking liquor in the pulp process, leading to increased efficiency without significant reduction in pulp quality. Highly concentrated filtrate from the cold caustic extraction stage may help reduce hemicellulose deposition on wood fiber during the cooking step.
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公开(公告)号：EP0113754B1
公开(公告)日：1986-06-25
申请号：EP83902318.1
申请日：1983-07-11
CPC分类号： D21C11/106 , B01D1/26 , D21C11/0035
摘要： A method for keeping the heating surfaces in the final thickener (VI), which is divided into several sections (A, B, C), clean in evaporating waste liquors in pulping processes for recovering the cooking chemicals. Chemical solutions e.g. residual products from other processes as tall oil separation and chlorine dioxide production are added to cover the chemical losses. According to the invention the chemical solutions are supplied to those sections of the final thickener which are at the time not being washed with thick waste liquor from the preceding evaporator (II).
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公开(公告)号：EP3152359B1
公开(公告)日：2018-12-26
申请号：EP15730208.4
申请日：2015-05-26
申请人： Andritz Oy
发明人： MCKEOUGH, Paterson
CPC分类号： D21C11/0007 , C04B2/108 , D21C11/00 , D21C11/0021 , D21C11/0035 , D21C11/0042 , Y02P40/44
摘要： A method of utilizing lignin-containing material separated from spent kraft pulping liquor including: acidifying the liquor to a pH not less than seven thereby precipitating solid particles, separating precipitated solid particles from the accompanying liquid, and subjecting the separated precipitated solid particles to a washing process in which: the separated precipitated solid particles are washed with an aqueous medium or aqueous media in one or more washing steps, in each one of the washing steps, the aqueous washing medium contains, in a dissolved form, significant amounts of one or more added sodium salts, and a combined concentration of the added sodium salts in the washing medium in each of the washing step exceeds three percent by weight; and utilizing as fuel in a lime kiln at least part of the washed lignin-containing material is utilized as fuel in a lime kiln of a pulp mill.
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4.发明授权METHOD FOR RECOVERING CHEMICALS AND BY-PRODUCTS FROM HIGH-SULPHIDITY PULPING LIQUORS 有权中回收化学品和副产物从中透出碱高硫化
公开(公告)号：EP2951346B1
公开(公告)日：2016-12-07
申请号：EP14706866.2
申请日：2014-02-03
申请人： Andritz Oy
发明人： McKEOUGH, Paterson
CPC分类号： D21C11/12 , D21C3/022 , D21C11/0007 , D21C11/0035 , D21C11/0085 , D21C11/06
摘要： A method used in connection with the recovery of pulping chemicals from spent pulping liquor produced by kraft-type pulping at very high sulphidity. In the method, spent pulping liquor is acidified to a relatively low pH which converts a most or all of the sulphide and hydrosulphide in the liquor to hydrogen sulfide. Sulphur containing gases released from the acidification of the spent pulping liquor, together with other sulphur gases collected at the pulp mill, are converted into an acid compound. This acid compound is employed as an acidification agent in the acidification of the spent pulping liquor. The amount of acid compound generated by the conversion of sulphur containing gases may be sufficient to provide most, if not all, of the acid needed for the acidification of the spent pulping liquor.
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公开(公告)号：EP3080353A1
公开(公告)日：2016-10-19
申请号：EP14821093.3
申请日：2014-12-11
申请人： Annikki GmbH
发明人： DYBOV, Alexander , MATEJKA, Julia
CPC分类号： D21C11/0007 , C07C29/86 , C07G1/00 , D21C11/0035 , D21C11/0085 , D21C11/04
摘要： A method for removing inorganic salts from an alcoholic basic lignin solution, comprising the steps of adding an acid to said solution whereby an alcoholic lignin solution is formed, and separating a precipitate comprising an inorganic precipitate from said solution, and a method for separating lignin from an alcoholic basic lignin solution, comprising the steps of adding an acid to said solution whereby an alcoholic lignin solution is formed, separating a precipitate comprising an inorganic precipitate from said solution, removing ethanol from said solution, optionally adjusting the pH of the mixture obtained, and separating lignin from said mixture, and, a method for avoiding foaming during alcohol recovery from an alcoholic mixture comprising lignin, optionally after separation of an inorganic precipitate, which method is characterized in that a pH of 2 to 9 of the alcoholic mixture is adjusted during alcohol recovery.
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公开(公告)号：EP2567023A1
公开(公告)日：2013-03-13
申请号：EP10773393.3
申请日：2010-08-18
CPC分类号： D21C1/06 , D21C3/02 , D21C11/0021 , D21C11/0028 , D21C11/0035 , D21C11/0064 , D21C11/0085 , D21C11/10
摘要： A method for pulp processing used in connection with a pre-hydrolysis kraft process (PHKP) includes adding wood chips or similar material to a reaction vessel, performing pre-hydrolysis, and neutralizing the mixture with a first quantity of white liquor followed by a different solution such as a cold caustic extraction alkaline filtrate optionally enriched with white liquor. The neutralization fluids are replaced with a cooking fluid comprising a hot black liquor and alkaline filtrate, optionally enriched with white liquor. The cooking fluid may have a relatively high effective alkali concentration. The cooked pulp may exhibit very low residual hemicelluloses and a kappa number within an optimal range.
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7.发明授权METHOD AND SYSTEM FOR PULP PROCESSING USING COLD CAUSTIC EXTRACTION WITH ALKALINE FILTRATE REUSE 有权方法和设备使用一冷，碱提法重用碱性滤液处理纸浆
公开(公告)号：EP2567022B1
公开(公告)日：2014-10-15
申请号：EP10771810.8
申请日：2010-08-18
CPC分类号： D21C1/06 , D21C3/02 , D21C11/0021 , D21C11/0028 , D21C11/0035 , D21C11/0064 , D21C11/0085 , D21C11/10
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8.发明公开
公开(公告)号：EP2058434A1
公开(公告)日：2009-05-13
申请号：EP08020295.5
申请日：1999-08-13
CPC分类号： D21C9/00 , D21C9/004 , D21C11/0035 , D21H17/675 , D21H17/70
摘要： L'invention concerne un procédé de fabrication d'une feuille de papier.
Selon l'invention, ce procédé consiste à
a) préparer ou fournir une composition de fabrication à base d'eau et d'une pâte de fibres papetières chimique blanchie ou écrue, d'une pâte mécanique ou thermomécanique, ou de leurs mélanges, comprenant en équilibre ionique au moins des ions de métaux alcalins et/ou alcalino-terreux et des ions hydrogénocarbonates, carbonates ou silicates ;
b) ajouter à ladite composition de fabrication, un hydroxyde d'une charge minérale pour fixer en ligne ladite charge minérale sur les fibres papetières ;
c) injecter le dioxyde de carbone dans la composition de fabrication après fixation de la charge minérale sur les fibres pour ajuster le pH ;
d) former une feuille de papier humide sur une machine à papier à partir des fibres papetières ainsi chargées en suspension et sécher ladite feuille,
e) récupérer les eaux d'égouttage de l'étage d); et
f) recycler les eaux ainsi traitées dans la composition de fabrication de l'étape a).摘要翻译： 制备纸张包括：（a）制备或提供用于制造化学漂白或未漂白纸纤维纸浆，机械或热机械纸浆或其混合物的水基组合物; （b）向组合物中加入矿物填料的氢氧化物，以将矿物填料固定在纸纤维上; （c）将矿物填料固定在纤维上后，在组合物中注入二氧化碳; （d）在造纸机上从纸纤维形成湿纸，并干燥纸张; （e）收集排水; 和（f）回收组合物中处理过的水。 制备纸张的方法包括：（a）制备或提供用于制造化学漂白或未漂白的纸纤维纸浆，机械或热机械纸浆或其混合物的水基组合物，其中所述组合物包含碱性和/或碱土 金属离子和碳酸氢根离子，离子平衡中的碳酸盐或硅酸盐; （b）向组合物中加入矿物填料的氢氧化物，将矿物填料固定在纸纤维上; （c）在将矿物填料固定在纤维上以调节pH后，在组合物中注入二氧化碳; （d）在造纸机上从纸纤维形成湿纸，并干燥纸张; （e）收集步骤（d）的排水; 和（f）在步骤（a）的组合物中回收处理过的水。
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9.发明授权
公开(公告)号：EP1076132B1
公开(公告)日：2008-11-26
申请号：EP99402058.4
申请日：1999-08-13
CPC分类号： D21C9/00 , D21C9/004 , D21C11/0035 , D21H17/675 , D21H17/70
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10.发明公开Procédé pour fixer une charge minérale sur des fibres cellosiques et procédé de fabrication d'une feuille de papier 有权Papierherstellungsverfahren mit Fixierung vonMineralfüllstoffauf cellulosischen Fasern
公开(公告)号：EP1076132A1
公开(公告)日：2001-02-14
申请号：EP99402058.4
申请日：1999-08-13
申请人： FORT JAMES FRANCE
CPC分类号： D21C9/00 , D21C9/004 , D21C11/0035 , D21H17/675 , D21H17/70
摘要： L'invention concerne un procédé pour fixer une charge minérale sur des fibres cellulosiques en suspension aqueuse.
Selon l'invention, ce procédé consiste à utiliser comme milieu réactionnel une suspension aqueuse de fibres cellulosiques issue d'une fabrication papetière, comprenant au moins des hydrogénocarbonates, carbonates ou silicates de métaux alcalins et/ou alcalino-terreux et à ajouter audit milieu réactionnel, un hydroxyde de la charge minérale, pour précipiter des carbonates ou silicates de la charge minérale sur les fibres.
L'invention trouve notamment application dans la fabrication du papier.摘要翻译： 为了将矿物材料的电荷与悬浮液中的纤维素纤维结合，作为造纸纸浆的纤维悬浮液至少包含碳酸氢盐，碳酸盐或碱金属硅酸盐和/或碱土金属与试剂。 加入用于粘附到纤维上的粘合材料作为无机氢氧化物，将其碳酸盐或硅酸盐沉淀在纤维上。 纤维悬浮液含有碳酸氢钠和碳酸氢钙和/或碳酸氢钙。 碱含量在2-30华氏度完成。纤维悬浮液含有速率为20-1000ppm的钠（N +）离子或钙离子（Ca 2（+）） 200ppm和/或镁离子（Mg 2+（+）），速率为5-200ppm。 氢氧化物矿物质是作为浓缩乳或固体形式的氢氧化钙，粒径≤6μm。 在矿物材料沉淀在悬浮液中的纤维上之后，将气体注入到含有二氧化碳的悬浮液中以中和并稳定纤维素纤维悬浮液的pH值。 使用的纤维悬浮液作为化学漂白或未漂白纤维的纸浆，机械纸浆，热机械纸浆或纸浆类型的混合物供应。 包括用于从已经将矿物材料沉积到纤维上的纤维悬浮液的纸浆生产纸张的独立权利要求。 将湿纸浆送入造纸机，将湿纸干燥。
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