公开(公告)号：US09777033B2

公开(公告)日：2017-10-03

申请号：US14385263

申请日：2012-03-16

申请人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

发明人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

IPC分类号： C07G1/00 ,  C08H8/00 ,  D21C11/00 ,  D21C11/04 ,  C08H7/00 ,  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 method is for separation of lignin from original black liquor (BLIN) that has a first precipitation phase (PR1/PR2) for precipitation of lignin by a first acidification using acidifier, CO2, at alkaline conditions, then separating a lignin cake with subsequent suspension of the lignin cake in a strong acid in order to leach out metals from the lignin followed by dewatering and obtaining a clean lignin product LP. Lignin germ particles (LG) are 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 results in improved filterability in subsequent dewatering and lignin cake formation and hence an increased lignin yield.

公开(公告)号：US20080047674A1

公开(公告)日：2008-02-28

申请号：US11659733

申请日：2005-09-08

申请人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

发明人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

IPC分类号： D21C11/00 ,  D21C11/04

CPC分类号： D21C11/0007 ,  Y02P40/44

摘要： Method for separating lignin from black liquor includes the following steps: a) precipitating lignin by acidifying black liquor and thereupon dewatering, b) suspending the lignin filter cake obtained in step a) to obtain a second lignin suspension and adjusting the pH level to approximately that of the washing water of step d) below, c) dewatering of the second lignin suspension, d) adding washing water and performing a displacement washing at substantially constant conditions without any dramatic gradients in the pH, and e) dewatering the lignin cake produced in step d) into a high dryness and displacing the remaining washing liquid in the filter cake, whereby a lignin product is obtained which has an even higher dryness after the displacement washing of step d). The lignin product or an intermediate lignin product obtained by the method, and its use, preferably for the production of heat or chemicals is also disclosed.

摘要翻译： 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）将步骤a）中获得的木质素滤饼悬浮以获得第二木质素悬浮液并将pH水平调节至大约 的步骤d）的洗涤水，c）第二木质素悬浮液的脱水，d）加入洗涤水并在基本恒定的条件下进行置换洗涤，而没有任何剧烈的pH值梯度，和e）使在 步骤d）变成高干度并置换滤饼中剩余的洗涤液体，从而得到在步骤d）的置换洗涤后具有甚至更高干燥度的木质素产物。 还公开了通过该方法获得的木质素产物或中间体木质素产物及其用于生产热或化学品的用途。

公开(公告)号：US20150119559A1

公开(公告)日：2015-04-30

申请号：US14385263

申请日：2012-03-16

申请人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

发明人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

IPC分类号： C07G1/00

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 method is for separation of lignin from original black liquor (BLIN) that has a first precipitation phase (PR1/PR2) for precipitation of lignin by a first acidification using acidifier, CO2, at alkaline conditions, then separating a lignin cake with subsequent suspension of the lignin cake in a strong acid in order to leach out metals from the lignin followed by dewatering and obtaining a clean lignin product LP. Lignin germ particles (LG) are 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 results in improved filterability in subsequent dewatering and lignin cake formation and hence an increased lignin yield.

摘要翻译： 该方法用于将木质素与原始黑液（BLIN）分离，该原液具有第一沉淀相（PR1 / PR2），用于通过在碱性条件下使用酸化剂CO 2进行第一次酸化沉淀木质素，然后将木质素饼与随后的悬浮液分离 的木质素饼在强酸中以从木质素中浸出金属，随后脱水并获得干净的木质素产物LP。 在第一沉淀阶段，优选在所述沉淀阶段的两相之间，将木质素颗粒（LG）添加到原始黑液中，以便增加木质素颗粒生长在木质素颗粒上，而不是在原始的木质素颗粒中自发成核木质素颗粒 黑酒。 这导致改进的随后脱水和木质素饼形成过程中的过滤性，从而增加了木质素产率。

公开(公告)号：US20080214796A1

公开(公告)日：2008-09-04

申请号：US12071436

申请日：2008-02-21

申请人： Per Tomani ,  Fredrik Ohman ,  Hans Theliander ,  Peter Axegard

发明人： Per Tomani ,  Fredrik Ohman ,  Hans Theliander ,  Peter Axegard

IPC分类号： C07G1/00 ,  D21C3/00

CPC分类号： D21C11/0007 ,  C07G1/00

摘要： 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 the method. The present invention also provides use of a lignin product or an intermediate lignin product for the production of fuel (solid, gaseous or liquid) or materials.

摘要翻译： 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，以及可通过该方法获得的木质素产物或中间木质素产物。 本发明还提供木质素产物或中间木质素产品用于生产燃料（固体，气体或液体）或材料的用途。

公开(公告)号：US09382389B2

公开(公告)日：2016-07-05

申请号：US12918497

申请日：2008-02-21

申请人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

发明人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

IPC分类号： D21C11/00 ,  C08H8/00

CPC分类号： C08H8/00 ,  D21C11/0007

摘要： The method is for controlling a sodium and sulphur balance of a pulp mill while separating lignin from black liquor. Lignin is precipitated by using an acid followed by filtration. The lignin filter cake thus obtained is re-suspended in acidic liquid and dewatered to form a second cake. The filtrate obtained after dewatering of the second cake is returned for washing and suspension of the first cake. Sodium sulphate-rich ESP (electrostatic precipitator) dust produced in the recovery boiler is used in the washing of the precipitated lignin cake.

摘要翻译： 该方法用于控制纸浆厂的钠和硫平衡，同时将木质素与黑液分离。 木质素通过使用酸沉淀，然后过滤。 将由此获得的木质素滤饼重新悬浮在酸性液体中并脱水以形成第二饼。 返回第二个滤饼脱水后获得的滤液，以洗涤和悬浮第一个滤饼。 在回收锅炉中产生的富含硫酸钠的ESP（静电除尘器）粉尘用于洗涤沉淀的木质素饼。

公开(公告)号：US20100325947A1

公开(公告)日：2010-12-30

申请号：US12918497

申请日：2008-02-21

申请人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

发明人： Fredrik Ohman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

IPC分类号： C10L5/00

CPC分类号： C08H8/00 ,  D21C11/0007

摘要： The method is for controlling a sodium and sulphur balance of a pulp mill while separating lignin from black liquor. Lignin is precipitated by using an acid followed by filtration. The lignin filter cake thus obtained is re-suspended in acidic liquid and dewatered to form a second cake. The filtrate obtained after dewatering of the second cake is returned for washing and suspension of the first cake. Sodium sulphate-rich ESP (electrostatic precipitator) dust produced in the recovery boiler is used in the washing of the precipitated lignin cake.

摘要翻译： 该方法用于控制纸浆厂的钠和硫平衡，同时将木质素与黑液分离。 木质素通过使用酸沉淀，然后过滤。 将由此获得的木质素滤饼重新悬浮在酸性液体中并脱水以形成第二饼。 返回第二个滤饼脱水后获得的滤液，以洗涤和悬浮第一个滤饼。 在回收锅炉中产生的富含硫酸钠的ESP（静电除尘器）粉尘用于洗涤沉淀的木质素饼。

公开(公告)号：US20080051566A1

公开(公告)日：2008-02-28

申请号：US11661412

申请日：2005-10-03

申请人： Fredrik Ohman ,  Hans Theliander ,  Magnus Norgren ,  Per Tomani ,  Peter Axegard

发明人： Fredrik Ohman ,  Hans Theliander ,  Magnus Norgren ,  Per Tomani ,  Peter Axegard

IPC分类号： C07G1/00

CPC分类号： D21C11/0007

摘要： 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. A method for separation of lignin from a lignin containing liquid/slurry, such as black liquor, whereby a more pure lignin is obtained, a lignin product or an intermediate lignin product obtainable by the above methods, and use, preferably for the production of heat or for use as chemical, of the lignin product or intermediate lignin product are also disclosed.

摘要翻译： 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（或用作进一步精制的化学原料或原料）的木质素产物或中间木质素产物 ），来自含木质素的液体/浆液，例如黑液。 从含有木质素的液体/浆液（例如黑液）中分离木质素的方法，由此获得更纯的木质素，可通过上述方法获得的木质素产物或中间木质素产物，并且优选用于产生热量 或用作木质素产品或中间体木质素产品的化学品。

公开(公告)号：US08486224B2

公开(公告)日：2013-07-16

申请号：US11659733

申请日：2005-09-08

申请人： Fredrik Öhman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

发明人： Fredrik Öhman ,  Hans Theliander ,  Per Tomani ,  Peter Axegard

IPC分类号： C07G1/00 ,  C08H7/00 ,  C08L97/00 ,  D21C1/00

CPC分类号： D21C11/0007 ,  Y02P40/44

摘要： Method for separating lignin from black liquor includes the following steps: a) precipitating lignin by acidifying black liquor and thereupon dewatering, b) suspending the lignin filter cake obtained in step a) to obtain a second lignin suspension and adjusting the pH level to approximately that of the washing water of step d) below, c) dewatering of the second lignin suspension, d) adding washing water and performing a displacement washing at substantially constant conditions without any dramatic gradients in the pH, and e) dewatering the lignin cake produced in step d) into a high dryness and displacing the remaining washing liquid in the filter cake, whereby a lignin product is obtained which has an even higher dryness after the displacement washing of step d). The lignin product or an intermediate lignin product obtained by the method, and its use, preferably for the production of heat or chemicals is also disclosed.

摘要翻译： 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）将步骤a）中获得的木质素滤饼悬浮以获得第二木质素悬浮液并将pH水平调节至大约 的步骤d）的洗涤水，c）第二木质素悬浮液的脱水，d）加入洗涤水并在基本恒定的条件下进行置换洗涤，而没有任何剧烈的pH值梯度，和e）使在 步骤d）变成高干度并置换滤饼中剩余的洗涤液体，从而得到在步骤d）的置换洗涤后具有甚至更高干燥度的木质素产物。 还公开了通过该方法获得的木质素产物或中间体木质素产物及其用于生产热或化学品的用途。

公开(公告)号：US08172981B2

公开(公告)日：2012-05-08

申请号：US12071436

申请日：2008-02-21

申请人： Per Tomani ,  Fredrik Öhman ,  Hans Theliander ,  Peter Axegard

发明人： Per Tomani ,  Fredrik Öhman ,  Hans Theliander ,  Peter Axegard

IPC分类号： D21C11/00 ,  C07G1/00 ,  C08H7/00 ,  C08L97/00

CPC分类号： D21C11/0007 ,  C07G1/00

摘要： 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 the method. The present invention also provides use of a lignin product or an intermediate lignin product for the production of fuel (solid, gaseous or liquid) or materials.

摘要翻译： 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，以及可通过该方法获得的木质素产物或中间木质素产物。 本发明还提供木质素产物或中间木质素产品用于生产燃料（固体，气体或液体）或材料的用途。

公开(公告)号：US20090099354A1

公开(公告)日：2009-04-16

申请号：US12293090

申请日：2007-02-02

申请人： Peter Axegard ,  Karin Lindgren ,  Olof Dahlman ,  Per Tomani ,  Fredrik Lundqvist

发明人： Peter Axegard ,  Karin Lindgren ,  Olof Dahlman ,  Per Tomani ,  Fredrik Lundqvist

IPC分类号： C07H1/00

CPC分类号： D21C11/0007 ,  C07H1/06 ,  C08B37/0057 ,  C08H8/00

摘要： The present invention provides a method for extracting polymeric pentose, preferably xylan, from a polymeric pentose containing liquid/slurry, preferably black liquor, comprising the following steps: a) providing a polymeric pentose containing liquid/slurry; b) concentrating the polymeric pentose by membrane separation of a said polymeric pentose containing liquid/slurry; and c) adding alcohol to the concentrate obtained in step b) and subsequently acidifying said concentrate obtained in step b) for precipitating polymeric pentose whereby a polymeric pentose product, or an intermediate polymeric pentose product, is obtained. In this above way polymeric pentose, e.g. xylan, is separated whereby the use of methanol (less lignin must be kept in solution) and acid (less acid which buffers the pH-decrease) become much lower. The present invention also provides according to a second aspect a polymeric pentose product or an intermediate polymeric pentose product obtainable by the method according to the first aspect. The present invention also provides according to a third aspect use, preferably for the production of food additives or as chemical feed stock, of the polymeric pentose product or the intermediate polymeric pentose product of the second aspect of the invention.

摘要翻译： 本发明提供了从含聚合戊糖的液体/浆液（优选黑液）中提取聚合戊糖，优选木聚糖的方法，包括以下步骤：a）提供含有聚合物的含有戊糖的液体/浆液; b）通过膜分离所述含聚合戊糖的液体/浆液来浓缩聚合戊糖; 和c）向步骤b）中获得的浓缩物中加入醇，然后酸化步骤b）中获得的浓缩物，以沉淀聚合戊糖，由此得到聚合戊糖产物或中间聚合戊糖产物。 以上述方式，聚合戊糖，例如 木聚糖被分离，由此使用甲醇（较少的木质素必须保持在溶液中）和酸（较少酸，缓冲pH降低）变得低得多。 本发明还提供根据第二方面的聚合物戊糖产物或通过根据第一方面的方法可获得的中间聚合戊糖产物。 本发明还提供了根据第三方面的用途，优选用于生产本发明第二方面的聚合戊糖产物或中间聚合戊糖产品的食品添加剂或化学原料。