公开(公告)号：WO2012131665A1

公开(公告)日：2012-10-04

申请号：PCT/IE2012/000014

申请日：2012-03-29

Applicant: UNIVERSITY OF LIMERICK ,  HAVERTY, Donncha

Inventor： HAVERTY, Donncha

IPC: D21C1/08 ,  D21C3/02 ,  D21C3/22 ,  D21C9/16

CPC classification number: D21C1/08 ,  D21C3/026 ,  D21C3/04 ,  D21C3/06 ,  D21C3/222 ,  D21C9/163

Abstract: 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.

Abstract translation: 转化木质纤维素材料的方法包括以下步骤：a。 b。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组合以产生至少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，同时提供有助于过氧化氢在反应器入口附近的溶液中快速分解的试剂，从而引起过氧化氢对氧和水的放热，爆炸性分解 从而形成气体，液体和固体的混合物，并将反应器中的压力和温度分别提高至至少15巴和70℃，而不需要从外部来源加热。 将通过压力变化的出口在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，其中将混合物分离成含有溶解或悬浮固体的液相和基本上富氧的气相，d 。 从闪蒸容器中连续除去基本上富含氧气的气流，以及具有悬浮或溶解的木质纤维素的化学和物理改变的组分的单独加热的液体料流，包括相对于起始木质纤维素材料具有降低的顽固性的基本上纤维素材料。

公开(公告)号：WO1982001019A1

公开(公告)日：1982-04-01

申请号：PCT/SE1981000273

申请日：1981-09-21

Applicant: SUNDS DEFIBRATOR AB ,  NARDI F

Inventor： SUNDS DEFIBRATOR AB

IPC: D21C03/02

CPC classification number: D21C11/04 ,  D21C3/026 ,  D21C9/1073

Abstract: A process to produce pulp from vegetable, cellulose-containing fibrous material such as coniferous wood, hardwood, straw, bagasse etc., the fibrous material being treated in several stages. In a first stage the fibrous material is impregnated with a solution of sodium hydroxide, in which solution the material is soaked and partly disintegrated by mechanical working. In a second stage excess of alkaline solution is squeezed out to such extent that the content of sodium peroxide in the raw pulp amounts to at least 15 kgs per BD ton of pulp. In a third stage the pulp material is subjected to additional disintegration under supply of a solution of sodium carbonate so that a pumpable pulp suspension having a sodium carbonate content of 150-400 kgs per BD ton of pulp is obtained. In a fourth stage the pulp suspension is subjected to a cooking process at a temperature of at least 100`C during 1-4 hours and under stirring and supply of oxygen, whereupon the cooked pulp is washed.

Abstract translation: 由植物性纤维素纤维材料如针叶木，硬木，秸秆，甘蔗渣等生产纸浆的方法，该纤维材料分几个阶段进行处理。 在第一阶段中，纤维材料用氢氧化钠溶液浸渍，其中溶液通过机械加工浸泡并部分分解。 在第二阶段中，过量的碱性溶液被挤出到这样的程度，使得生纸浆中的过氧化钠含量相对于BD吨的纸浆至少为15kg。 在第三阶段，纸浆材料在碳酸钠溶液的供应下进行额外的分解，从而获得每BD吨纸浆的碳酸钠含量为150-400kgs的可泵送纸浆悬浮液。 在第四阶段中，纸浆悬浮液在1-4小时内并在搅拌和供给氧气的同时在至少100℃的温度下进行烹饪过程，然后清洗煮熟的纸浆。

公开(公告)号：WO02014598A1

公开(公告)日：2002-02-21

申请号：PCT/US2001/041644

申请日：2001-08-09

IPC: C08H8/00 ,  D21C1/02 ,  D21C3/02 ,  D21C3/18 ,  D21C3/26 ,  D21B1/12 ,  C08B16/00 ,  D21C1/06 ,  D21C1/08

CPC classification number: D21C3/02 ,  D21C1/02 ,  D21C3/026 ,  D21C3/028 ,  D21C3/18 ,  D21C3/26 ,  Y02P70/24

Abstract: A multi-function process for the separation of cellulose fibers (9) from the other constituents of lignocellulosic biomass such as found in grasses, agricultural waste, and waste paper with application in the preparation of feedstocks (1) for use in the manufacture of paper, plastics, ethanol, and other chemicals. This process minimizes waste disposal problems since it only uses only steam (6), water, and oxygen at elevated temperature in the range of 180 OC to 240 OC for 1 to 10 minutes plus a small amount of chemical reagents (23) to maintain pH in the range 8 to 13. An energy recuperation function is important to the economic viability of the process.

Abstract translation: 用于将纤维素纤维（9）与木质纤维素生物质的其它组分（例如在草，农业废物和废纸中发现）分离的多功能方法，用于制备用于制造纸的原料（1） ，塑料，乙醇等化学品。 这个过程最大限度地减少废物处理问题，因为它仅在180℃至240℃范围内的高温下仅使用蒸汽（6），水和氧，持续1至10分钟加上少量化学试剂（23）以维持pH 在8至13范围内。能量回收功能对于该过程的经济可行性很重要。

公开(公告)号：WO9208842A3

公开(公告)日：1992-11-26

申请号：PCT/US9108147

申请日：1991-11-08

Applicant: DU PONT

Inventor： CHANG HOU-MIN ,  CHIN YUNG-CHANG ,  CHOU YU-CHIA TERRY

IPC: A23K1/12 ,  A23L1/10 ,  A23L1/308 ,  D21C3/02 ,  D21C3/26 ,  D21C5/00 ,  D21C9/16

CPC classification number: D21C5/00 ,  A23K10/32 ,  A23L7/115 ,  A23L33/24 ,  D21C3/026 ,  D21C3/263 ,  D21C9/163

Abstract: A process for delignifying and optionally bleaching nonwoody lignocellulosic substrates to produce a dietary fiber suitable for human consumption is disclosed. The process involves (a) an optional first step of treating the substrate with an aqueous alkali solution containing 1 to 20 % by weight, based on dry substrate, of a base at 20° to 100 °C to swell and remove base soluble materials from the substrate; (b) separating the substrate and optionally washing it with water; (c) uniformly wetting the substrate with an aqueous alkaline solution containing 1 to 20 wt. % of base, based on dry substrate, to form a slurry, placing the slurry in a pressure vessel which is pressured with oxygen gas to 20 to 300 psig (138 to 2070 kPa) for 5 to 180 minutes at a temperature of 50° to 150 °C to delignify the substrate, separating the delignified susbstrate from the lignin containing extract solution; (d) optionally bleaching the delignified substrate, preferably with an alkaline aqueous hydrogen peroxide solution; and (e) recovering the delignified substrate. Optionally more than one oxygenation step can be used with the substrate being separated from the oxygenation-extraction medium between oxygenation steps. Optionally, in a preferred aspect of the present invention a peroxide, preferably 0.5 to 10 weight percent hydrogen peroxide, is included in the reaction medium during one of the oxygenation steps.

公开(公告)号：WO2018022427A1

公开(公告)日：2018-02-01

申请号：PCT/US2017/043099

申请日：2017-07-20

Applicant: ECOLAB USA, INC.

Inventor： DUGGIRALA, Prasad, Y. ,  SHEVCHENKO, Sergey, M.

IPC: D21C9/10 ,  D21C9/147

CPC classification number: D21C3/026 ,  D21C9/1084 ,  D21C9/14 ,  D21C9/147

Abstract: The present disclosure provides methods and compositions for improving the oxygen delignification process. The methods may include adding low doses of a borohydride stabilized in an alkaline solution to brownstock pulp. The methods may result in significant chemical savings, increased pulp brightness, increased pulp yield, and reduced kappa number.

Abstract translation: 本公开提供了用于改善氧气去木质素过程的方法和组合物。 该方法可以包括将低剂量的在碱性溶液中稳定的硼氢化物加入到粗果浆中。 这些方法可能会导致显着的化学节省，增加纸浆亮度，增加纸浆产量和减少卡伯值。

公开(公告)号：WO2011156708A1

公开(公告)日：2011-12-15

申请号：PCT/US2011/039974

申请日：2011-06-10

Applicant: PACKAGING CORPORATION OF AMERICA ,  KIROV, Ventzislav, H. ,  SHIN, Namhee

Inventor： KIROV, Ventzislav, H. ,  SHIN, Namhee

IPC: D21C3/02 ,  D21C9/147 ,  D21C9/02

CPC classification number: D21C9/147 ,  D21C3/00 ,  D21C3/02 ,  D21C3/026 ,  D21C3/263 ,  D21C9/02 ,  D21D1/20 ,  D21H11/02

Abstract: A method to make pulp adapted for forming a corrugated medium, the method includes: cooking chips in a cooking vessel using a caustic carbonated pulping soda/caustic (SC) cooking liquor injected into the cooking vessel; fiberizing the chips discharged from the cooking vessel to form a pulp, and removing lignin from the pulp or oxidizing lignin in the pulp by injecting oxygen (O 2 ) into the fiberized pulp.

Abstract translation: 一种制备适于形成波纹状介质的纸浆的方法，所述方法包括：使用注入到所述烹饪容器中的苛性碳酸化制浆苏打/苛性（SC）蒸煮液将切片放入烹饪容器中; 使从烹饪容器排出的碎屑纤维化以形成纸浆，并通过将氧（O 2）注入到纤维化纸浆中，从纸浆中除去木质素或在纸浆中氧化木质素。

公开(公告)号：WO2015067446A1

公开(公告)日：2015-05-14

申请号：PCT/EP2014/072096

申请日：2014-10-15

Applicant: EVONIK INDUSTRIES AG ,  DIETZ, Thomas ,  HOPF, Bernd ,  GRIMMER, Ralf ,  WEGMANN, Sigrid ,  ILLHARDT, Verena

Inventor： DIETZ, Thomas ,  HOPF, Bernd ,  GRIMMER, Ralf ,  WEGMANN, Sigrid ,  ILLHARDT, Verena

IPC: D21C3/00 ,  D21C9/10 ,  D21C9/147 ,  D21C9/16

CPC classification number: D21C9/163 ,  D21C3/00 ,  D21C3/026 ,  D21C9/10 ,  D21C9/1036 ,  D21C9/1042 ,  D21C9/1057 ,  D21C9/147 ,  D21C9/16 ,  D21C9/166

Abstract: Verfahren zur Delignifizierung und Bleiche von Zellstoff, umfassend eine erste Bleichstufe mit Wasserstoffperoxid in Gegenwart eines Molybdats oder eines Wolframats in einer sauren wässrigen Mischung, eine der ersten Bleichstufe nachfolgende zweite Bleichstufe mit Wasserstoffperoxid in einer alkalischen wässrigen Mischung und eine der zweiten Bleichstufe nachfolgende dritte Bleichstufe mit Wasserstoffperoxid in Gegenwart eines Molybdats oder eines Wolframats in einer sauren wässrigen Mischung.

Abstract translation: 脱木素和纸浆的漂白方法，包括在钼酸盐或在酸性水溶液混合物钨酸盐，在碱性水溶液混合物与过氧化氢的第一漂白阶段之后的第二漂白阶段中的一个，并与一个第二漂白阶段随后的第三漂白阶段的存在下与过氧化氢的第一漂白阶段的过程 过氧化氢在钼酸盐的存在下或在酸性水溶液混合物钨酸盐。

公开(公告)号：WO01059204A1

公开(公告)日：2001-08-16

申请号：PCT/SE2000/001578

申请日：2000-08-15

IPC: D21C3/02 ,  D21C11/12

CPC classification number: D21C3/026 ,  D21C11/12

Abstract: The process of the present invention relates to a substantially sulfur free process for the manufacturing of a chemical pulp from lignocellulosic material with an integrated recovery system for recovery of pulping chemicals. The subject process is carried out on in several stages involving a pretreatment stage and a cooking stage followed by oxygen delignification in a buffer alkali in order to obtain a cellulose pulp. Spent cellulose liquor comprising lignin components and spent chemical reagents is fully or partially oxidized in a gas generator wherein a stream of hot raw gas and a stream of alkaline chemicals and chemical reagents is formed for subsequent recycle and reuse in the pulp manufacturing process.

Abstract translation: 本发明的方法涉及用于从木质纤维素材料制造化学纸浆的基本上无硫的方法，其具有用于回收制浆化学品的综合回收系统。 本发明方法在涉及预处理阶段和烹饪阶段的几个阶段中进行，然后在缓冲碱中进行氧脱木质，以获得纤维素纸浆。 包含木质素组分和废化学试剂的废纤维素液体在气体发生器中被完全或部分氧化，其中形成热原料气流和碱性化学品和化学试剂流，用于纸浆制造过程中的后续再循环和再利用。

公开(公告)号：WO1991010774A1

公开(公告)日：1991-07-25

申请号：PCT/SE1991000020

申请日：1991-01-11

Applicant: MO OCH DOMSJÖ AKTIEBOLAG ,  LINDAHL, Jonas, Arne, Ingvar

Inventor： MO OCH DOMSJÖ AKTIEBOLAG

IPC: D21C09/00

CPC classification number: D21C3/026 ,  D21C9/10 ,  D21C9/147 ,  D21H11/04 ,  D21H15/02

Abstract: Cellulose pulp, preferably sulphate pulp, from softwood, characterized in that it: (i) has a limit viscosity which lies beneath 900 cm /g (ii) has a kappa number which is beneath 12, preferably beneath 10, such as beneath 8, and (iii) has a fibre size distribution according to Bauer McNett such, (a) that 60 % by weight, preferably >70 % by weight of its fibres are retained on 30 mesh, and that its shive content is 10 % by weight, preferably >15 % by weight of its fibres pass through 200 mesh, and that its shive content is substantially 0 % by weight.

Abstract translation: 来自软木的纤维素纸浆，优选硫酸盐纸浆，其特征在于：（i）具有低于900cm 3 / g（ii）的极限粘度具有低于12，优选低于10的卡巴值，例如 低于8，和（iii）根据Bauer McNett的纤维尺寸分布如下：（a）<10重量％，其纤维的重量比<5重量％通过200目，优选> 60重量％ > 70重量％的纤维保留在30目上，其含量<0.05重量％，或使（b）<40重量％，优选<30重量％的纤维保持在 30目和> 10重量％，优选> 15重量％的纤维通过200目，其含量基本上为0重量％。

公开(公告)号：WO2013164234A1

公开(公告)日：2013-11-07

申请号：PCT/EP2013/058535

申请日：2013-04-24

Applicant: ANNIKKI GMBH

Inventor： DYBOV, Alexander ,  BOECK, Florian

IPC: D21C3/00 ,  D21C3/02 ,  D21C3/04 ,  D21C3/20

CPC classification number: D21H17/66 ,  D21C3/00 ,  D21C3/02 ,  D21C3/026 ,  D21C3/04 ,  D21C3/20 ,  D21C5/005

Abstract: Verfahren zur Gewinnung von Zellstoff mit niedrigem Ligningehalt, gekennzeichnet durch eine Kombination der Massnahmen, dass a) lignocellulosisches Material mit einer wässrigen Lösung, welche einen C 1-6 -Alkohol enthält und einen pH-Wert von 10 bis 14 aufweist, bei einer Temperatur unter 100°C behandelt wird, worauf die wässrige Lösung, in der Lignin, das aus der Lignocellulose abgespalten wurde, gelöst vorliegt, vom Feststoff, der ein mit Cellulose und Hemicellulose angereichertes Material darstellt, abgetrennt wird, b) Hemicellulose aus dem mit Cellulose und Hemicellulose angereichertes Material aus a) entfernt wird, c) das in b) erhaltene Material, das mit Hemicellulose abgereichert ist, in wässriger alkalischer Lösung mit einem Alkali-, Erdalkali- oder Ammoniumsulfit, insbesondere Na 2 SO 3 , und/oder mit Sauerstoff, behandelt wird, wobei Lignin in Lösung geht und Zellstoff mit niedrigem Ligningehalt erhalten wird; sowie durch das Verfahren herstellbarer Zellstoff.

Abstract translation: 一种回收的纸浆具有低的木质素含量的方法，其特征在于，所述措施的组合是：a）木质纤维素材料与包含C 1-6醇，并具有10的pH值至14，在低于100℃的温度的水溶液中 ℃下处理，并将水溶液存在于木质素，将其从溶解木质纤维素裂解，从固体，其富含纤维素和半纤维素材料，b）中的半纤维素从富含纤维素和半纤维素中分离 来自a）的被除去，c）如b）中获得的材料，其被耗尽，在碱性水溶液中与碱金属，碱土金属或铵，尤其是亚硫酸钠处理的半纤维素，和/或氧，其中木质素材料 进入溶液和纸浆将具有低的木质素含量; 和由纸浆的方法生产。