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1. 发明公开

EP3390712A1 METHOD FOR CONTROLLING VISCOSITY IN DISSOLVING PULPS 审中-公开
公开(公告)号：EP3390712A1
公开(公告)日：2018-10-24
申请号：EP16876147.6
申请日：2016-12-13
申请人： Valmet AB
发明人： WENNERSTRÖM, Maria , BYLUND, Sofia
IPC分类号： D21C9/16 , D21C3/06
CPC分类号： D21C9/16 , D21C3/06 , D21C9/1052 , D21C9/163
摘要： The present invention relates to an improved process for producing dissolving pulp from a sulfite cooking process using a TCF bleaching sequence containing alkali extraction and alkaline peroxide bleaching in the pulp bleaching. The new process adds an acidic peroxide stage (Pacid) which makes it possible to control pulp viscosity in an efficient way and do not introduce new bleaching chemicals into the filtrate handling system.

2. 发明公开

EP3327131A1 PROCESSING METHOD OF PREPARING A CARBOHYDRATE ENRICHED COMPOSITION 审中-公开
公开(公告)号：EP3327131A1
公开(公告)日：2018-05-30
申请号：EP16200923.7
申请日：2016-11-28
申请人： Lenzing AG
发明人： FACKLER, Karin , FEINER, Roland , MALZNER, Erwin
IPC分类号： C12P19/02 , C12P19/14 , C12P7/18 , D21C1/04 , D21C1/06 , D21C3/06 , D21C11/00
CPC分类号： D21C1/04 , C12P7/10 , C12P7/56 , C12P19/02 , C12P2201/00 , C12P2203/00 , D21C1/06 , D21C3/06 , D21C11/0007
摘要： The present invention relates to methods of processing compositions comprising a lignosulfonate and a carbohydrate, methods of preparing a carbohydrate-enriched composition involving the above processing method, associated carbohydrate-enriched compositions, and uses of the same.

3. 发明授权

EP3126567B1 A CONTINUOUS PROCESS FOR PRODUCTION OF CELLULOSE PULP FROM GRASS-LIKE PLANT FEEDSTOCK 有权
标题翻译：一种连续生产草类原料纤维素浆的方法
公开(公告)号：EP3126567B1
公开(公告)日：2018-03-14
申请号：EP14723103.9
申请日：2014-03-31
申请人： Mikulic, Marinko
发明人： Mikulic, Marinko
IPC分类号： D21C3/02 , D21H11/12 , D21C3/06 , D21C5/00
CPC分类号： D21C3/24 , D21C3/02 , D21C3/06 , D21C3/18 , D21C5/00 , D21C7/06 , D21C7/08 , D21C9/10 , D21H11/12
摘要： A continuous process for production of cellulose pulp from grass-like plant feedstock for paper making. The process includes: preparing the grass-like plant feedstock by comminuting, dedusting, continuous digestion, disperging, diluting the cellulose pulp, screening and fractionation, concentration to remove black liquor, dilution with fresh water, and, optionally, pulp bleaching processes. The continuous digestion is performed in the vertical column at 70-100° C. for 40 minutes to 2 hours; average composition of thus formed digestion suspension is maintained within the following ranges: 0.9-1.5% w/w of NaOH; 0.15-0.4% w/w of NaCl or Na2SO3; and 15-18% w/w of grass-like plant feedstock; concentrations of ingredients being calculated on the weight of the liquid phase. Screening and fractionation are resulting with two fractions; one being further processed by milling, and another being further processed to final pulp with or without bleaching processes. The preferred grass-like feedstock for the process is miscanthus/Miscanthus×giganteus, Andersson/.

4. 发明公开

EP3093389A1 DISSOLVING PULP 有权转让
标题翻译： AUFLÖSUNGVON PULPE
公开(公告)号：EP3093389A1
公开(公告)日：2016-11-16
申请号：EP15170245.3
申请日：2015-06-02
申请人： PT Sateri Viscose International
发明人： Devanesan, Alagaratnam Joseph , Chapman, Alan A , Ginting, Eduward
IPC分类号： D21C3/02 , D21C3/06 , D21H11/02 , D21H13/08
CPC分类号： D21H11/02 , D21C3/022 , D21C3/06 , D21H13/08 , Y02P20/582
摘要： There is provided a dissolving pulp, a cellulosic composition, a composition, regenerated cellulose fibre and a textile comprising Acacia crassicarpa. There is provided the use of the compositions for preparing a dissolving pulp. There is provided a method of preparing dissolving pulp, comprising: (a) hydrolysing a composition comprising cellulosic or a lignocellulosic material of Acacia crassicarpa to thereby form a treated cellulosic or lignocellulosic composition; (b) heating the treated composition under conditions to produce said dissolving pulp; and a method of producing regenerated cellulose fibres, comprising: (a) base treatment of a dissolving pulp of Acacia crassicarpa to produce cellulose xanthate; (b) neutralizing said cellulose xanthate to produce said regenerated cellulose fibres.
摘要翻译：提供了溶解纸浆，纤维素组合物，组合物，再生纤维素纤维和包含相思树的纺织品。提供了用于制备溶解纸浆的组合物的用途。提供了制备溶解纸浆的方法，其包括：（a）水解包含纤维素或相思树的木质纤维素材料的组合物，从而形成经处理的纤维素或木质纤维素组合物; （b）在产生所述溶解纸浆的条件下加热处理过的组合物; 以及生产再生纤维素纤维的方法，包括：（a）对相思树的溶解纸浆进行碱处理以生产纤维素黄原酸酯; （b）中和所述纤维素黄原酸酯以产生所述再生纤维素纤维。

5. 发明公开

EP2694723A1 LIGNOCELLULOSE PROCESSING 审中-公开
标题翻译：木质纤维素加工
公开(公告)号：EP2694723A1
公开(公告)日：2014-02-12
申请号：EP12716644.5
申请日：2012-03-29
申请人： University of Limerick
发明人： HAVERTY, Donncha
IPC分类号： D21C1/08 , D21C3/02 , D21C3/22 , D21C9/16
CPC分类号： D21C1/08 , D21C3/026 , D21C3/04 , D21C3/06 , D21C3/222 , D21C9/163
摘要： A method of transforming a lignocellulose material comprises the steps of: a. combining a lignocellulose material with a solution containing hydrogen peroxide and a hydrogen peroxide stabiliser to produce a mixture that is at least 3% by mass hydrogen peroxide, b. feeding said mixture to the entrance of a continuous reactor concomitant with providing an agent that facilitates the rapid decomposition of the hydrogen peroxide in the solution proximal to the entrance of the reactor so as to cause exothermic, explosive decomposition of the hydrogen peroxide to oxygen and water thus forming a mixture of gas, liquid, and solids and increasing the pressure and temperature in the reactor to at least 15 bar, and 70°C respectively without addition of heat from an external source, c. exiting the mixture of gas, water and solids formed in the reactor through an outlet with a pressure change, into a flash vessel wherein the mixture is separated into a liquid phase containing dissolved or suspended solids and a gas phase substantially rich in oxygen, and d. continuously removing from the flash vessel a gas stream substantially rich in oxygen and a separate heated liquid stream having suspended or dissolved therein chemically and physically altered components of the lignocellulose including a substantially cellulosic material with reduced recalcitrance relative to the starting lignocellulose material.
摘要翻译：转化木质纤维素材料的方法包括以下步骤：a。将木质纤维素材料与含有过氧化氢和过氧化氢稳定剂的溶液混合以产生至少3质量％过氧化氢的混合物，b。将所述混合物进料到连续反应器的入口，同时提供促进过氧化氢在接近反应器入口的溶液中快速分解的试剂，以引起过氧化氢放热，爆炸性分解成氧和水从而形成气体，液体和固体的混合物，并且分别将反应器中的压力和温度增加至至少15巴和70℃，而不从外部来源加热，c。通过压力变化的出口将反应器中形成的气体，水和固体的混合物排出到闪蒸容器中，其中混合物被分离成含有溶解或悬浮的固体和基本上富含氧的气相的液相，d 。从闪蒸容器中连续地除去基本上富含氧的气流和其中悬浮或溶解有分离的化学和物理改变的木质纤维素组分的单独的加热液体流，所述木质纤维素组分包括相对于起始木质纤维素材料具有降低的不相容性的基本上纤维素材料。

6. 发明公开

EP2142348A1 VERFAHREN ZUR HERSTELLUNG VON GEBLEICHTEN HOLZPARTIKELN UND HELLEN BIS WEISSEN HOLZWERKSTOFFEN 失效
标题翻译：用于生产颗粒和光漂白木白木质材料
公开(公告)号：EP2142348A1
公开(公告)日：2010-01-13
申请号：EP08749657.6
申请日：2008-04-23
申请人： BASF SE
发明人： SCHÖNHABER, Dieter , ERREN, Stefan , STIEGLITZ, Katerina , BECKMANN, Eberhard , GARCIA ESPINO, Andres Carlos , JÄGER, Norbert , KRÜSEMANN, Juliane
IPC分类号： B27K5/02 , B27N1/00 , D21B1/02 , D21B1/12 , D21C3/04 , D21C3/06 , D21C9/10
CPC分类号： D21J1/00 , D21B1/021 , D21C3/04 , D21C3/06 , D21C9/10 , D21C9/1084 , D21C9/1089 , Y10T428/249925
摘要： The present invention relates to a method for the production of bleached wood particles, and to a method for the production of wood materials ranging from light-toned to white, which are produced from the bleached wood particles.

7. 发明公开

EP0863250A2 PROCESS FOR PREPARING A PULP-COOKING SOLUTION 失效
标题翻译： VERFAHREN ZUR HERSTELLUNG EINER LANGE ZUR ZELLSTOFFKOCHUNG
公开(公告)号：EP0863250A2
公开(公告)日：1998-09-09
申请号：EP96940192.6
申请日：1996-11-13
申请人： Pukanov, Vitaly Valerievich , Grudinin, Vladimir Pavlovich , Grudinin, Alexandr Vladimirovich
发明人： GRUDININ, Vladimir Pavlovich , GRUDININ, Alexandr Vladimirovich
IPC分类号： D21C3/04
CPC分类号： D21C11/0021 , D21C3/02 , D21C3/06
摘要： The proposed invention deals with pulp and paper production, in particular, with the process for preparing pulp cooking liquors to manufacture a fibrous semifabricate.
A cooking liquor is proposed to be prepared by saturation of a water medium with sulfurous anhydride provided that this water medium is in fact either a pulp and paper mill waste water with activated sludge (18-40g/l) and soda ash (1,55-2,50% by weight) in it or alkali hydrolyzate produced in treatment of the same waste water by a mixture of base salts containing sodium carbonate (50-90% by weight based on Na 2 O) at the temperature 25-40°C followed up with a solid sediment removal and the saturation goes on until sulfurous anhydride concentration in the liquor is 2,5-5,5% by weight.
The proposed method allows to increase considerably the output of a fibrous semi-fabricate and improve its mechanical characteristics not to speak of utilizing waste water generated at a waste water treatment plant of a pulp and paper mill and expanding a sources of raw materials needed for cooking liquors preparation.
摘要翻译：所提出的发明涉及纸浆和造纸，特别是制备纸浆蒸煮液以制造纤维半成品的方法。建议通过用含有二硫酸酐的水介质的饱和来制备烹饪液，只要这种水介质实际上是纸浆和造纸厂废水与活性污泥（18-40g / l）和苏打灰（1,55 -2,50重量％）或碱处理相同废水时产生的碱水解产物，该混合物是在25-40℃温度下通过含有碳酸钠（50-90重量％，基于Na 2 O）的碱式盐的混合物，随后随着固体沉淀物的去除，饱和度持续到液体中的亚硫酸酐浓度为2.5-5.5重量％。所提出的方法允许显着地增加纤维半制品的产量并改善其机械特性，而不是说利用纸浆和造纸厂的废水处理厂产生的废水并扩大烹饪所需的原料来源酒制备。

8. 发明公开

EP0351330A1 Procédé de fabrication de pâtes chimicothermomécaniques blanchies 失效
标题翻译： Verfahren zur Herstellung von gebleichten cheemhermomechanischen Zellstoffen。
公开(公告)号：EP0351330A1
公开(公告)日：1990-01-17
申请号：EP89420245.6
申请日：1989-07-06
申请人： ELF ATOCHEM S.A.
发明人： Devic, Michel
IPC分类号： D21C3/06 , D21C9/16
CPC分类号： D21C3/06 , D21C9/163
摘要： Procédé de fabrication de pâtes CTMP blanchies comprenant un traitement de la matière lignocellulosique avec le sulfite à température au moins égale à 100°C sous pression de vapeur d'eau saturée, et un blanchiment à l'aide de H₂O₂ en milieu alcalin, sans élimination de matière solide ou liquide de la pâte depuis le début du traitement jusqu'à la fin du blanchiment.
摘要翻译：用于制造漂白的CTMP纸浆的方法，其包括在饱和蒸汽压力下在至少100℃的温度下处理含有亚硫酸盐的木质纤维素原料，以及借助于H 2 O 2在碱性介质中漂白操作，而不从其中除去固体或液体物质纸浆从开始处理直至漂白结束。

9. 发明公开

EP3341416A1 NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL 审中-实审转让
公开(公告)号：EP3341416A1
公开(公告)日：2018-07-04
申请号：EP16840260.0
申请日：2016-08-29
申请人： API Intellectual Property Holdings, LLC
发明人： NELSON, Kimberly , RETSINA, Theodora , PYLKKANEN, Vesa , IAKOVLEV, Mikhail
IPC分类号： C08B15/08 , D21C3/06 , D21C9/10 , B82Y30/00 , B82Y40/00
CPC分类号： D21C3/06 , B82Y40/00 , C08B15/08 , C08H8/00 , D21C3/00 , D21C3/20 , D21C5/02 , D21C9/005 , D21C9/007 , D21C9/10 , D21H11/04 , D21H11/06 , D21H11/20 , Y02W30/648
摘要： Some variations provide a process for producing a nanocellulose material, comprising: providing a biomass feedstock comprising a bleached or unbleached pulp material; fractionating the feedstock in the presence of an acid, a solvent for lignin, and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form cellulose fibrils and/or cellulose crystals, thereby generating a nanocellulose material. The process is preferably co-located with, or adjacent to, a mill that generates the pulp material. There are several advantages of a bolt-on AVAP® nanocellulose plant to an existing pulp mill, as disclosed herein.

10. 发明授权

EP2925789B1 PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM 有权转让
公开(公告)号：EP2925789B1
公开(公告)日：2018-07-04
申请号：EP13859071.6
申请日：2013-11-28
申请人： Api Intellectual Property Holdings, LLC
发明人： NELSON, Kimberly , RETSINA, Theodora , PYLKKANEN, Vesa , O'CONNOR, Ryan
IPC分类号： C08B15/08
CPC分类号： C08B15/08 , C07G1/00 , C08B15/00 , C08B15/02 , C08B37/0057 , C08H8/00 , C08L1/02 , C12P7/04 , C12P7/10 , C12P7/14 , C12P7/16 , C12P7/28 , C12P7/46 , C12P7/56 , C12P19/02 , C12P19/14 , C12P2201/00 , C12P2203/00 , C13K1/02 , D21C3/04 , D21C3/06 , D21C3/20 , D21C5/00 , D21C5/005 , D21C9/002 , D21C9/007 , D21C9/10 , D21C11/0007 , D21H11/18 , Y02E50/16 , Y02P40/44
摘要： Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.

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