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1.发明公开Chlorine-free wood pulps and process of making 失效Chlorfreier Holzzellstoff und Verfahren zur Herstellung。
公开(公告)号：EP0480469A2
公开(公告)日：1992-04-15
申请号：EP91117401.9
申请日：1991-10-11
CPC分类号： D21C9/153 , D21C9/1057 , D21C9/147 , D21C9/16
摘要： This invention provides for a batch and continuous process with countercurrent recycle of bleaching filtrates (34,44,54,64) for the delignification and bleaching of pulp (10). Oxygen delignification of pulp (33) is achieved in excess of 50% as measured by kappa numbers, while the pulp viscosity is minimally decreased by no more than about 8 cps.
Bleaching of delignified pulp may be achieved with peroxy (23,43,53) compounds and ozone (43) and pulp brightness of from about 82 to 88 ISO maybe achieved with pulp containing zero level TOX from chlorine based bleaching chemicals and zero level of AOX in the bleach effluents. Higher brightness of from about 90 to about 92 ISO can also be achieved by addition of very low levels of chlorine based bleaching chemicals. Corresponding bleach effluents contain less than 200 ppm AOX. Bleaching filtrates may be recycled for pulp washing and for use with an organosolv pulping process which results in significant energy savings and mitigation if not elimination of pollution typically associated with chlorine based bleaching. This invention also relates to bleach pulp product derived from the process and to an apparatus for carrying out the process.摘要翻译： 本发明提供了一种用于脱木素和漂白纸浆的漂白滤液的逆流循环的间歇和连续方法。 通过卡伯值测量，纸浆的氧脱木质素达到超过50％，而纸浆粘度最小降低不超过约8cps。 脱木质纸浆的漂白可以用过氧化合物和臭氧来实现，并且通过含氯漂白化学品的含有零级TOX的纸浆和漂白废水中的零水平的AOX可以实现约82至88℃的纸浆亮度。 通过加入非常低水平的氯基漂白化学品也可以达到约90至约92 ISO的较高亮度。 相应的漂白废水含有少于200ppm的AOX。 漂白的滤液可以回收用于纸浆清洗和用于有机溶剂制浆过程，如果不消除通常与基于氯的漂白相关的污染，则可以显着节省能源和减轻污染物。 本发明还涉及从该方法得到的漂白纸浆产品和用于实施该方法的设备。
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公开(公告)号：EP0763622A3
公开(公告)日：1999-08-25
申请号：EP96118706.9
申请日：1991-05-15
摘要： A continuous solvent pulping process is practiced with oxygen free gas (e.g. nitrogen) purges of all major treatment vessels (23, 24, 85, 103, 105) during the time when the process is arrested or terminated. The wood chips or other cellulosic fibrous material to be pulped is steamed in a first horizontal steaming zone (23) at a pressure of about 10-20 psi, and then in a second horizontal steaming zone (24) at a pressure of about 20-75 psi. Gases, including vaporized solvent (e.g. ethanol or other alcohol) are vented (via 30, 36) from the steaming zones, and solvent is added (at 39) to the steamed material prior to feeding to a high pressure feeder (11) . The high pressure feeder introduces the material into the top of a single digesting vessel (12), liquid and chips being separated at the top of the digester vessel without mechanical means that could cause a spark. Lignin containing liquid is withdrawn from a central portion (14) of the digester and passed through flash tanks (51-53) and ultimately for lignin and alcohol recovery. Washing -- which also may be practiced using solvent pulp from a batch system -- is accomplished by first continuously passing the pulp to a pressure diffuser (85), then to a first multi stage drum displacer washer (103), and then to a second multi stage drum displacer washer (105).
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公开(公告)号：EP0855995A2
公开(公告)日：1998-08-05
申请号：EP96938620.0
申请日：1996-10-11
CPC分类号： C04B24/18 , C04B28/02 , C04B20/023 , C04B2103/302 , C04B2103/50 , C04B24/003
摘要： The invention provides for an admixture for reducing the water content of a concrete mix. The admixture comprises an alkaline solution of a lignin in a sulfomethylolated form. The sulfomethylolated lignin in the admixture can also be cross-linked with a cross-linking agent. The admixture further comprises an air detrainer. Also provided are novel cement compositions comprising the admixture of the invention.
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公开(公告)号：EP0851888A1
公开(公告)日：1998-07-08
申请号：EP96916877.0
申请日：1996-05-31
发明人： BONO, Pierre , FELDMAN, Dorel , BANU, Dorina , LORA, Jairo, H. , WANG, Jiashu , WU, Chih, Fae
CPC分类号： C08L97/00 , C08K5/098 , C08L23/02 , C08L23/06 , C08L53/02 , C08L97/005 , C08L2201/06 , C08L2207/066 , C08L2666/26
摘要： This invention provides for degradable plastic polymeric blends and methods of making same. The blends comprise a polymeric material and an organosolv lignin. The invention also provides for articles of manufacture.
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公开(公告)号：EP0764188A1
公开(公告)日：1997-03-26
申请号：EP95921322.0
申请日：1995-05-31
发明人： BONO, Pierre , FELDMAN, Dorel , BANU, Dorina , LORA, Jairo, H.
CPC分类号： C08J5/18 , C08J2327/06 , C08L23/02 , C08L23/06 , C08L23/10 , C08L27/06 , C08L97/005 , C08L2201/06 , C08L2203/16 , C08L2666/26 , C08L2666/04
摘要： This invention provides for degradable plastic polymeric blends and methods of making same. The blends comprise a polymeric material and an organosol lignin. The invention also provides for articles of manufacture.
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公开(公告)号：EP0763622A2
公开(公告)日：1997-03-19
申请号：EP96118706.9
申请日：1991-05-15
摘要： A continuous solvent pulping process is practiced with oxygen free gas (e.g. nitrogen) purges of all major treatment vessels (23, 24, 85, 103, 105) during the time when the process is arrested or terminated. The wood chips or other cellulosic fibrous material to be pulped is steamed in a first horizontal steaming zone (23) at a pressure of about 10-20 psi, and then in a second horizontal steaming zone (24) at a pressure of about 20-75 psi. Gases, including vaporized solvent (e.g. ethanol or other alcohol) are vented (via 30, 36) from the steaming zones, and solvent is added (at 39) to the steamed material prior to feeding to a high pressure feeder (11) . The high pressure feeder introduces the material into the top of a single digesting vessel (12), liquid and chips being separated at the top of the digester vessel without mechanical means that could cause a spark. Lignin containing liquid is withdrawn from a central portion (14) of the digester and passed through flash tanks (51-53) and ultimately for lignin and alcohol recovery. Washing -- which also may be practiced using solvent pulp from a batch system -- is accomplished by first continuously passing the pulp to a pressure diffuser (85), then to a first multi stage drum displacer washer (103), and then to a second multi stage drum displacer washer (105).
摘要翻译： 连续溶剂制浆方法被实践与无氧气体（氮气E. G.）所有主要治疗血管的清洗（23，24，85，103，105）的时间期间当处理被逮捕或终止。 在约20的压力被制浆木片或其他纤维素纤维材料在约10-20磅的压力的第一水平蒸烘区内（23）蒸，然后在第二水平汽蒸区（24） 75磅。 气体，包括蒸发溶剂（例如乙醇或其它醇）的排气（通孔30，36）从蒸区，并加入溶剂（在39），以蒸材料进给到一个高压给料器（11）之前。 的高压给料器介绍该材料到一个单一的蒸煮器（12），液体和碎屑在蒸煮器没有机械bedeutet顶部被分离的顶部，能否DASS引起火花。 含木质素的液体从蒸煮器的中央部分（14）取出并通过闪蒸罐（51-53），并最终为木质素和酒精回收通过。 水洗 - 因此其可以使用溶剂纸浆从间歇系统来实践 - 由第一纸浆连续通过扩散（85）的压力，然后至第一多级滚筒洗衣机置换器（103），然后到一个完成 第二多级鼓置换垫圈（105）。
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7.发明公开
公开(公告)号：EP0569526A1
公开(公告)日：1993-11-18
申请号：EP92906068.0
申请日：1992-01-29
发明人： LORA, Jairo, H. , KATZEN, Raphael , CRONLUND, Malcolm , WU, Chih, Fae , GOPAL, Goyal, C. , WINNER, Stephen, R. , LEBLANC, Ron
CPC分类号： C07D307/50 , C08H6/00 , D21C3/20 , D21C11/0007 , D21C11/0042
摘要： Des filtrats provenant du blanchiment et de la délignification de la pâte sont recyclés afin d'être ré-utilisés dans les procédés de réduction en pâte, de séparation et de récupération de lignine (66) et d'autres sous-produits, ce qui permet de réaliser d'importantes économies d'énergie ainsi que de diminuer sinon d'éliminer la pollution généralement associée au processus de blanchiment. L'invention se rapporte aussi à des produits dérivés du procédé et à un appareil servant à effectuer ce procédé. Des lignines de différents poids moléculaires et des sous-produits du procédé de réduction en pâte sont aussi récupérés (66). Les lignines sont précipitées avec un rendement élevé et à une vitesse élevée à partir d'une liqueur noire (40) produite lorsqu'on réduit du bois en pâte à des températures et à des pressions élevées avec un solvant aqueux à base d'alcool aliphatique inférieur. Un produit composé de furfural purifié est aussi récupéré (71) comme sous-produit du procédé. Le furfural peut être recyclé afin d'être utilisé pour la récupération de la lignine de faible poids moléculaire de ce procédé.
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公开(公告)号：EP0716182A3
公开(公告)日：1996-11-13
申请号：EP95118395.3
申请日：1995-11-22
发明人： Cronlund, Malcolm , Lora, Jairo H. , Powers, Jeanne , Singh, Uday
CPC分类号： D21C9/147 , D21C9/1057 , D21C9/153 , D21C9/16
摘要： This invention provides for a batch and continuous process with countercurrent recycle of bleaching filtrates for the delignification and bleaching of organosolv pulp. Oxygen delignification of organosolv pulp is achieved in excess of from about 50% to about 76% as measured by kappa numbers, while the pulp viscosity is minimally decreased in the range of from about 2 to about 5 cps. Bleaching of delignified pulp is achieved with peroxy compounds and ozone and pulp brightness of from about 82 to 88 ISO can be achieved with pulp containing zero level TOX from chlorine based bleaching chemicals and zero level of AOX in the bleach effluents. Higher brightness of from about 90 to about 92 ISO can also be achieved by addition of very low levels of chlorine based bleaching chemicals. Corresponding bleach effluents contain less than 200 ppm AOX. Bleaching filtrates can be recycled for pulp washing and for use with an organosolv pulping process which results in significant energy savings and mitigation if not elimination of pollution typically associated with chlorine based bleaching. This invention also relates to bleach pulp product derived from the process.
摘要翻译： 本发明提供了用于有机溶剂纸浆脱木素和漂白的漂白滤液的逆流再循环的间歇和连续方法。 通过卡伯值测量，有机溶剂纸浆的氧脱木素达到超过约50％至约76％，而纸浆粘度在约2至约5cps的范围内最小降低。 脱木质纸浆的漂白是通过过氧化合物和臭氧实现的，纸浆的亮度可以达到约82〜88℃，纸浆含有来自氯系漂白化学品的零级TOX纸浆和漂白剂中的AOX零水平。 通过加入非常低水平的氯基漂白化学品也可以达到约90至约92 ISO的较高亮度。 相应的漂白废水含有少于200ppm的AOX。 漂白的滤液可以回收用于纸浆清洗和用于有机溶剂制浆过程，如果不消除通常与氯基漂白相关的污染，则可以显着节能和减轻污染。 本发明还涉及从该方法衍生的漂白纸浆产品。
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公开(公告)号：EP0693090A1
公开(公告)日：1996-01-24
申请号：EP94914104.0
申请日：1994-04-08
发明人： ASH, Jacob , WU, Chih, Fae , CREAMER, Albert, W. , LORA, Jairo, H. , RAWUS, Joseph, D. , SHELTON, George , SENYO, William, C.
CPC分类号： C09J161/06 , C08L33/02 , C08L61/06 , C08L97/005 , C08L2666/04 , C08L2666/14 , C08L2666/26 , C09J197/005
摘要： Novel adhesives for wood composites are described. The adhesives comprise a novel combination of an organosolv lignin and a phenol-formaldehyde resin in a weight ratio of from about 0.5:99.5 to about 70:30 based on phenolic solids in said phenol-formaldehyde resin. The adhesives further comprise a modifier which improves the performance of the adhesive. Adhesives comprising an organosolv lignin and a liquid phenol-formaldehyde resin are also described. The organosolv lignin solution is comprised in either an alkaline solution or in a dispersion. Adhesives wherein the organosolv lignin is phenolated or methylolated prior to incorporation with the phenol-formaldehyde resin are also described. Wood composites such as plywood, waferboard, oriented strandboard, particleboard, wallboard and molded products were manufactured using the adhesives of the invention. Results of board testing demonstrate that the wood composites of the invention are competitive with wood composites manufactured using commercial adhesives.
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公开(公告)号：EP0904330A1
公开(公告)日：1999-03-31
申请号：EP96921556.0
申请日：1996-06-12
摘要： The invention provides for a vapor barrier formulation suitable for coating and lamination onto a paper substrate and comprises organosolv lignin in a dispersion, mica and latex. The laminated paper product is recyclable.
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