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1. 发明授权

EP3387187B1 SCREEN FOR TREATMENT VESSELS 有权
公开(公告)号：EP3387187B1
公开(公告)日：2020-11-25
申请号：EP16873463.0
申请日：2016-12-06
申请人： Valmet AB
发明人： SAETHERÅSEN, Jonas
IPC分类号： D21C7/14 , D21C3/24 , D21C7/08

2. 发明授权

EP3186439B1 COST EFFICIENT KRAFT COOKING METHOD USING POLYSULFIDE COOKING LIQUOR 有权
公开(公告)号：EP3186439B1
公开(公告)日：2019-07-24
申请号：EP14900793.2
申请日：2014-08-26
申请人： Valmet AB
发明人： ANTONSSON, Stefan , OLSSON, Krister
IPC分类号： D21C1/06 , D21C3/02 , D21C3/24

3. 发明公开

EP3464714A1 DOUBLE ALKALI CHARGING FOR CHIP IMPREGNATION 审中-公开
公开(公告)号：EP3464714A1
公开(公告)日：2019-04-10
申请号：EP17803173.8
申请日：2017-05-23
申请人： Valmet AB
发明人： WILGOTSON, Fredrik , DEUD, Eduardo
IPC分类号： D21C1/06 , D21C7/12 , D21C3/24 , D21C7/06

4. 发明公开

EP3387187A1 SCREEN FOR TREATMENT VESSELS 审中-公开
公开(公告)号：EP3387187A1
公开(公告)日：2018-10-17
申请号：EP16873463.0
申请日：2016-12-06
申请人： Valmet AB
发明人： SAETHERÅSEN, Jonas
IPC分类号： D21C7/14 , D21C3/24
CPC分类号： D21C7/14 , D21C3/24 , D21C7/00 , D21C7/08
摘要： The invention relates to an improved treatment vessel screen (SC) for continuous treatment vessels. In order to obtain an easy cleaning of the withdrawal space behind screens in treatment vessels is the screen designed such that it may slide vertically into an upper recess of the screen frame and thereafter dropped into a mounting position wherein the lower part of the screen is locked radially in a lower recess of the screen frame. Exposing the withdrawal chamber for cleaning is simply a reversal of the mounting procedure, i.e sliding the screen upwards and then swinging the lower part of the screen out from mounting position. This inexpensive design prevent chip disturbance of column while allowing full access for cleaning of lower part of withdrawal space.

5. 发明公开

EP3377696A1 METHOD FOR HEATING CELLULOSIC MATERIAL TO FULL COOKING TEMPERATURE IN DIGESTERS 审中-公开
公开(公告)号：EP3377696A1
公开(公告)日：2018-09-26
申请号：EP16866744.2
申请日：2016-10-18
申请人： Valmet AB
发明人： OLSSON, Krister
IPC分类号： D21C7/10 , D21C7/14 , D21C11/10 , D21C3/22 , D21C3/24
CPC分类号： D21C7/10 , D21C3/02 , D21C3/22 , D21C3/24 , D21C7/14 , D21C11/10
摘要： The invention relates to an improved method for generating steam in a digester plant of a chemical pulp mill. A mixture of alkaline cooking liquor and black liquor is before charge to the digester system heated in a reboiler producing black liquor steam used to heat the cellulosic feed material in digester top reaching full cooking temperature. By this method could addition of clean steam condensate to cooking liquor be avoided, and problems like lignin precipitation in black liquor heaters as well as alkaline corrosion in cooking liquor heaters may be totally avoided.

6. 发明公开

EP3365493A1 USE OF CELLULASE TO IMPROVE VISCOSITY CONTROL OF DISSOLVING PULP 审中-公开
公开(公告)号：EP3365493A1
公开(公告)日：2018-08-29
申请号：EP16784500.7
申请日：2016-10-20
申请人： Novozymes A/S
发明人： LOUREIRO, Pedro, Emanuel, Garcia , LUND, Henrik
IPC分类号： D21C3/00 , D21C3/24 , D21C3/26 , C12N9/42
CPC分类号： D21C3/006 , D21C3/24 , D21C3/26 , D21C5/005
摘要： The present invention relates to treatment of unbleached or partially bleached or alkaline extracted dissolving pulp with one or more cellulases. The cellulase treatment results in increased viscosity control, reduced viscosity and/or increased reactivity of the final dissolving pulp.

7. 发明公开

EP3186439A1 COST EFFICIENT KRAFT COOKING METHOD USING POLYSULFIDE COOKING LIQUOR 有权
标题翻译：使用多硫化物烹饪液的成本有效的牛皮纸烹饪方法
公开(公告)号：EP3186439A1
公开(公告)日：2017-07-05
申请号：EP14900793.2
申请日：2014-08-26
申请人： Valmet AB
发明人： ANTONSSON, Stefan , OLSSON, Krister
IPC分类号： D21C1/06 , D21C3/02 , D21C3/24
CPC分类号： D21C3/022 , D21C1/06 , D21C3/24 , D21C3/26 , D21C7/06
摘要： The invention is related to a method for the preparation of kraft pulp with increased pulping yield from lignin-containing cellulosic material using polysulfide cooking liquor. In order to obtain a cost efficient system both in aspects of investment costs but also in aspects of heat economy of operating the process is most of the total charge of alkali charged as heated polysulfide liquor to an first atmospheric vessel, wherein the hot polysulfide liquor flashes off steam providing most if not all of the necessary steaming effect for the cellulose material. The polysulfide liquor is then allowed to impregnate the cellulose material at a temperature closer to cooking temperature but still so low that essentially no delignification occurs in impregnation vessel, as the H-factor in impregnation vessel is kept within 1-20.
摘要翻译：本发明涉及使用多硫化物蒸煮液从含木质素的纤维素材料制备提高制浆产率的牛皮纸浆的方法。为了在投资成本方面以及在操作的热经济方面获得成本有效的系统，大部分作为加热的多硫化物液体加入到第一大气容器中的碱的总计量，其中热的多硫化物液体闪烁提供大部分（如果不是全部的话）对纤维素材料必需的蒸汽效果。然后使多硫化物液体在接近于烹饪温度的温度下浸渍纤维素材料，但仍然很低，使得浸渍容器中基本上不发生脱木素，因为浸渍容器中的H因子保持在1-20。

8. 发明授权

EP2516732B1 METHOD AND ARRANGEMENT FOR IMPROVING A WASHING STEP AFTER COMPLETED COOKING IN A CONTINUOUS DIGESTER 有权转让
标题翻译： FOR改进洗涤过程的方法和系统完成加热的蒸煮器，
公开(公告)号：EP2516732B1
公开(公告)日：2015-06-24
申请号：EP10839896.7
申请日：2010-12-20
申请人： Valmet Aktiebolag
发明人： SAETHERÅSEN, Jonas
IPC分类号： D21C9/02 , D21C7/08 , D21C3/24
CPC分类号： D21C3/24 , D21C7/08 , D21C9/02

9. 发明公开

EP2516732A4 METHOD AND ARRANGEMENT FOR IMPROVING A WASHING STEP AFTER COMPLETED COOKING IN A CONTINUOUS DIGESTER 有权转让
标题翻译： FOR改进洗涤过程的方法和系统完成加热的蒸煮器，
公开(公告)号：EP2516732A4
公开(公告)日：2014-09-03
申请号：EP10839896
申请日：2010-12-20
申请人： VALMET AKTIEBOLAG
发明人： SAETHERÅSEN JONAS
IPC分类号： D21C9/02 , D21C3/24 , D21C7/08
CPC分类号： D21C3/24 , D21C7/08 , D21C9/02

10. 发明授权

EP2268862B1 FEEDING SYSTEM COMPRISING PUMPS IN PARALLEL FOR A CONTINUOUS DIGESTER 有权转让
标题翻译：包含并联泵的进料系统用于连续排放装置
公开(公告)号：EP2268862B1
公开(公告)日：2013-10-02
申请号：EP09723152.6
申请日：2009-03-19
申请人： Metso Paper Sweden AB
发明人： SAMUELSSON, Anders , SAETHERÅSEN, Jonas , TROLIN, Daniel
IPC分类号： D21C7/06 , D21C3/24
CPC分类号： D21C3/24 , D21C1/06 , D21C7/06

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