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1. 发明申请

WO2013070130A1 METHOD FOR LIGNIN SEPARATION FROM BLACK LIQUOR INVOLVING MULTIPLE ACIDIFICATION STEPS 审中-公开
标题翻译：涉及多种酸化步骤的黑色液体的木质素分离方法
公开(公告)号：WO2013070130A1
公开(公告)日：2013-05-16
申请号：PCT/SE2011/051360
申请日：2011-11-11
申请人： METSO POWER AB , WIMBY, Martin , SVENSSON, Mattias , WALLMO, Henrik , ÖHMAN, Fredrik , TOMANI, Per , ÅKERLUND, Lars-Erik
发明人： WIMBY, Martin , SVENSSON, Mattias , WALLMO, Henrik , ÖHMAN, Fredrik , TOMANI, Per , ÅKERLUND, Lars-Erik
IPC分类号： D21C11/00 , C08H8/00
CPC分类号： D21C11/0007 , C08H6/00 , C08H8/00 , C08L97/005 , C08L2205/18 , Y02P40/44
摘要： The present invention relates to a method for separation of lignin from original black liquor (BL IN ) comprising the following phases in sequence; a first precipitation phase (PR1 ) for precipitation of lignin by a first acidification of the original black liquor by adding a first acid or mixture of acids (G 1a ); followed by a first storage phase wherein precipitated lignin particles are allowed to increase in size, followed by a second precipitation phase (PR2) for precipitation of lignin by a further acidification of the original black liquor by adding a second acid or mixture of acids (G 1b ). By retaining the acidified black liquor for at least 25 minutes in the storage phase are the precipitated lignin particles allowed to grow in size and the filterability is improved considerably.
摘要翻译：本发明涉及一种从原始黑液（BLIN）中分离木质素的方法，其中包括以下阶段：用于通过加入第一种酸或酸的混合物（G1a）首次酸化原始黑液来沉淀木质素的第一沉淀相（PR1）; 随后是其中允许沉淀的木质素颗粒大小增加的第一储存阶段，随后是用于通过加入第二种酸或酸的混合物（G1b）进一步酸化原始黑液来沉淀木质素的第二沉淀相（PR2））。通过在储存阶段保留酸化的黑液至少25分钟，允许沉淀的木质素颗粒尺寸增长，并且过滤性明显改善。

2. 发明申请

WO2013137790A1 METHOD FOR LIGNIN SEPARATION FROM BLACK LIQUOR 审中-公开
标题翻译：从黑液中分离的方法
公开(公告)号：WO2013137790A1
公开(公告)日：2013-09-19
申请号：PCT/SE2012/050293
申请日：2012-03-16
申请人： METSO POWER AB , ÖHMAN, Fredrik , THELIANDER, Hans , TOMANI, Per , AXEGÅRD, Peter
发明人： ÖHMAN, Fredrik , THELIANDER, Hans , TOMANI, Per , AXEGÅRD, Peter
IPC分类号： D21C11/00 , C08H7/00 , D21C11/04 , C08H8/00 , C10L5/44
CPC分类号： C07G1/00 , C08H6/00 , C08H8/00 , C08L2205/18 , C10L5/44 , C10L5/445 , D21C11/00 , D21C11/0007 , D21C11/04 , Y02E50/10 , Y02E50/30 , Y02P40/44
摘要： The present invention relates to a method for separation of lignin from original black liquor (BL IN ) comprising a first precipitation phase (PR1/PR2) for precipitation of lignin by a first acidification using acidifier, CO 2 , at alkaline conditions, then separating a lignin cake with subsequent suspension of the lignin cake in a strong acid in order to leach our metals from the lignin followed by dewatering and obtaining a clean lignin product LP. According to the invention are lignin germ particles (LG) added to the original black liquor in the first precipitation stage, preferably between two phases in said precipitation stage, in order to increase lignin particle growth on such lignin germ particles instead of spontaneous nucleation of lignin particles in said original black liquor. This will result in improved filterability in subsequent dewatering and lignin cake formation and hence an increased lignin yield.
摘要翻译：本发明涉及一种用于从原始黑液（BLIN）分离木质素的方法，其包括用于在碱性条件下使用酸化剂CO 2首先酸化沉淀木质素的第一沉淀相（PR1 / PR2），然后分离木质素饼随后将木质素饼块悬浮在强酸中以从木质素中浸出我们的金属，随后脱水并获得干净的木质素产物LP。根据本发明，在第一沉淀阶段，优选在所述沉淀阶段的两相之间加入原始黑液中的木质素颗粒（LG），以便增加木质素颗粒生长在木质素颗粒上而不是木质素的自发成核所述原始黑液中的颗粒。这将导致改进的随后脱水和木质素饼形成过程中的过滤性，从而提高木质素产率。

3. 发明申请

WO2006038863A1 METHOD FOR SEPARATING LIGNIN FROM A LIGNIN CONTAINING LIQUID/SLURRY 审中-公开
标题翻译：从含有液体/浆液的木质素分离木瓜的方法
公开(公告)号：WO2006038863A1
公开(公告)日：2006-04-13
申请号：PCT/SE2005/001453
申请日：2005-10-03
申请人： STFI-PACKFORSK AB , ÖHMAN, Fredrik , THELIANDER, Hans , NORGREN, Magnus , TOMANI, Per , AXEGÅRD, Peter
发明人： ÖHMAN, Fredrik , THELIANDER, Hans , NORGREN, Magnus , TOMANI, Per , AXEGÅRD, Peter
IPC分类号： D21C11/00
CPC分类号： D21C11/0007
摘要： The present invention provides a method for precipitating (separation) of lignin, using small amounts of acidifying agents, whereby a lignin product or an intermediate lignin product is obtained which can be used as fuel or chemical feed stock (or as a chemical or a raw material for further refining), from a lignin containing liquid/slurry, such as black liquor. The present invention also provides a method for separation of lignin from a lignin containing liquid/slurry, such as black liquor, whereby a more pure lignin is obtained. The present invention also provides a lignin product or an intermediate lignin product obtainable by the above methods. The present invention also provides use, preferably for the production of heat or for use as chemical, of said lignin product or intermediate lignin product.
摘要翻译：本发明提供一种使用少量酸化剂沉淀（分离）木质素的方法，由此获得可用作燃料或化学原料（或化学原料或原料）的木质素产物或中间木质素产物用于进一步精炼的材料），来自含木质素的液体/浆液，例如黑液。本发明还提供了用于从含木质素的液体/浆料如黑液中分离木质素的方法，由此得到更纯的木质素。本发明还提供可通过上述方法获得的木质素产品或中间木质素产品。本发明还提供了优选用于生产所述木质素产物或中间木质素产物的热或用作化学品的用途。

4. 发明申请

WO2009104995A1 A METHOD FOR SEPARATING LIGNIN FROM BLACK LIQUOR, A LIGNIN PRODUCT, AND USE OF A LIGNIN PRODUCT FOR THE PRODUCTION OF FUELS OR MATERIALS 审中-公开
标题翻译：用于从黑色液体中分离木瓜的方法，木质素产品和用于生产燃料或材料的木质素产品的使用
公开(公告)号：WO2009104995A1
公开(公告)日：2009-08-27
申请号：PCT/SE2008/000142
申请日：2008-02-21
申请人： LIGNOBOOST AB , ÖHMAN, Fredrik , THELIANDER, Hans , TOMANI, Per , AXEGARD, Peter
发明人： ÖHMAN, Fredrik , THELIANDER, Hans , TOMANI, Per , AXEGARD, Peter
IPC分类号： D21C11/00 , C08H5/02 , D21C11/04
CPC分类号： C08H8/00 , D21C11/0007
摘要： The invention relates to a method for controlling the sodium and sulphur balance of a pulp mill while separating lignin from black liquor, and also a lignin product or an intermediate lignin product obtainable by said method. The invention also provides use of a lignin product or an intermediate liqnin product for the production of fuel (solid, gaseous or liquid) or materials. The method involves the steps: (1) precipitation of lignin using an acid followed by filtration, (2) re-suspension of the filter cake, (3) filtration forming a second cake, and (4) returning filtrate for washing and suspending in previous steps. In a preferred embodiment sodium sulphate-rich ESP (electrostatic precipitator) -dust produced in the recovery boiler is used in the washing of the precipitated lignin.
摘要翻译：本发明涉及一种用于控制纸浆厂的钠和硫平衡的方法，同时将木质素与黑液分离，以及可通过所述方法获得的木质素产物或中间体木质素产物。本发明还提供了用于生产燃料（固体，气体或液体）或材料的木质素产物或中间体液体产品的用途。该方法包括以下步骤：（1）使用酸沉淀木质素，然后过滤，（2）滤饼再悬浮，（3）过滤形成第二个滤饼，（4）将滤液返回洗涤和悬浮以前的步骤。在一个优选的实施方案中，在回收锅炉中产生的富含硫酸钠的ESP（静电除尘器） - 水泥被用于洗涤沉淀的木质素。

5. 发明申请

WO2006031175A1 METHOD FOR SEPARATING LIGNIN FROM BLACK LIQUOR 审中-公开
标题翻译：从黑液中分离木瓜的方法
公开(公告)号：WO2006031175A1
公开(公告)日：2006-03-23
申请号：PCT/SE2005/001301
申请日：2005-09-08
申请人： STFI-PACKFORSK AB , ÖHMAN, Fredrik , THELIANDER, Hans , TOMANI, Per , AXEGARD, Peter
发明人： ÖHMAN, Fredrik , THELIANDER, Hans , TOMANI, Per , AXEGARD, Peter
IPC分类号： D21C11/00
CPC分类号： D21C11/0007 , Y02P40/44
摘要： The present invention provides a method for separation of lignin from black liquor comprising the following steps: a) Precipitation of lignin by acidifying black liquor and thereupon dewatering, b) suspending the lignin filter cake obtained in step a) whereupon a second lignin suspension is obtained and adjusting the pH level to approximately the pH level of the washing water of step d) below, c) dewatering of the second lignin suspension, d) addition of washing water and performing a displacement washing at more or less constant conditions without any dramatic gradients in the pH, and e) dewatering of the lignin cake produced in step d) into a high dryness and displacement of the remaining washing liquid in said filter cake, whereby a lignin product is obtained which has an even higher dryness after the displacement washing of step e). The present invention also provides a lignin product or an intermediate lignin product obtainable by the above method. The present invention also provides use, preferably for the production of heat or chemicals, of said lignin product or said intermediate lignin product.
摘要翻译：本发明提供了一种从黑液中分离木质素的方法，包括以下步骤：a）通过酸化黑液并随后脱水来沉淀木质素，b）悬浮步骤a）中获得的木质素滤饼，由此获得第二木质素悬浮液并且将pH水平调节到下面步骤d）的洗涤水的大约pH值水平，c）第二木质素悬浮液的脱水，d）加入洗涤水并在或多或少的恒定条件下进行置换洗涤，而没有任何显着的梯度在pH值中，e）将步骤d）中产生的木质素滤饼脱水到所述滤饼中的高干燥度和剩余洗涤液体的位移，由此得到木质素产物，其在置换洗涤后具有更高的干燥度步骤e）。本发明还提供可通过上述方法获得的木质素产品或中间木质素产品。本发明还提供了用于生产所述木质素产物或所述中间体木质素产物的热或化学物质的用途。

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