公开(公告)号：US06833057B1

公开(公告)日：2004-12-21

申请号：US09341921

申请日：1999-07-21

申请人： Bernd Bessling ,  Hans Hasse ,  Jürgen Plückhan ,  Thomas Mayer ,  Heinz Auer

发明人： Bernd Bessling ,  Hans Hasse ,  Jürgen Plückhan ,  Thomas Mayer ,  Heinz Auer

IPC分类号： B01D338

CPC分类号： C07D301/32 ,  Y10S203/20

摘要： In a process for purification of ethylene oxide by distillation an aqueous mixture comprising ethylene oxide, formaldehyde and at least 5% by weight of water is introduced via a feed into a distillation apparatus comprising at least one distillation column, the mixture being introduced at a height above the bottom of at least 8 theoretical stages, the ethylene oxide is taken off at the top and in the bottom phase a mixture is obtained which contains less than 5% by weight of ethylene oxide.

摘要翻译： 在通过蒸馏纯化环氧乙烷的方法中，将包含环氧乙烷，甲醛和至少5重量％的水的含水混合物通过进料引入到包含至少一个蒸馏塔的蒸馏装置中，混合物在高度 在至少8个理论阶段的底部之上，环氧乙烷在顶部被除去，在底部，获得含有小于5重量％的环氧乙烷的混合物。

公开(公告)号：US06375804B1

公开(公告)日：2002-04-23

申请号：US09829502

申请日：2001-04-10

申请人： Vijai P. Gupta

发明人： Vijai P. Gupta

IPC分类号： B01D338

CPC分类号： C07C67/54 ,  Y10S203/22 ,  C07C69/14

摘要： The present invention provides a distillation separation method whereby tertiary butyl acetate is separated by distillation as an overhead stream from a bottoms acetic acid stream with the proviso that water is incorporated in the system such that the bottoms acetic acid stream contains water in amount of 0.1 to 5 wt %.

摘要翻译： 本发明提供一种蒸馏分离方法，其中通过蒸馏将乙酸叔丁酯作为来自底部乙酸流的塔顶物流分离，条件是将水引入体系中使得底部乙酸流含有0.1至 5重量％。

公开(公告)号：US06332958B1

公开(公告)日：2001-12-25

申请号：US09331762

申请日：1999-08-19

申请人： Etsuro Matsuda ,  Yuichi Ito ,  Toshinobu Kurazono

发明人： Etsuro Matsuda ,  Yuichi Ito ,  Toshinobu Kurazono

IPC分类号： B01D338

CPC分类号： C08F6/003 ,  Y10S159/10 ,  Y10S203/09 ,  C08L27/06

摘要： An apparatus and a method for removing residual monomers from a slurry containing a polyvinyl chloride. The apparatus has a cylindrical tower with plural perforated plates provided in a vertical direction in the tower, plural chambers formed on the perforated plates serving as their bottom surface, slurry introducing portions provided at two or more of the chambers, flow-down sections provided between the perforated plates to allow the slurry to sequentially flow down from the perforated plate of an upper chamber to the perforated plate of a lower chamber, a steam introducing port at a bottom portion of the tower, a deaerating port at a top portion of the tower, a slurry discharging port at a chamber below a chamber having the slurry introducing port, and hot water ejectors directly under the perforated plates directed at least toward the lower surface of the perforated plates. The apparatus is constructed so that the slurry introducing pipe is connected to a slurry introducing port through an on-off valve and the inside diameter of the slurry introducing pipe is progressively enlarged to 1.2 times or more toward the slurry introducing port.

摘要翻译： 从含有聚氯乙烯的浆料中除去残留单体的装置和方法。 该装置具有圆柱形塔架，塔架在塔架中沿垂直方向设置多个多孔板，形成在作为其底面的多孔板上的多个室，设置在两个或更多个室的浆料导入部分， 多孔板允许浆料从上腔室的多孔板顺序地向下流到下腔室的多孔板，塔的底部的蒸汽引入口，塔顶部的脱气口 ，在具有浆料引入口的室下方的腔室处的浆料排出口和至少朝向多孔板的下表面的多孔板正下方的热水喷射器。 该设备被构造成使得浆料引入管通过开关阀连接到浆料引入口，并且浆料引入管的内径逐渐扩大到浆料引入口的1.2倍或更多。

公开(公告)号：US06758946B2

公开(公告)日：2004-07-06

申请号：US09771651

申请日：2001-01-30

申请人： Otto Watzenberger ,  Heiner Schelling

发明人： Otto Watzenberger ,  Heiner Schelling

IPC分类号： B01D338

CPC分类号： C02F1/20 ,  C02F2101/38 ,  C02F2103/346

摘要： A process for working up hydroxylamine-containing solutions as obtained in particular in the electronics industry during the cleaning of electronic components is described. According to the invention, the hydroxylamine is stripped from the wastewater with steam. The products obtained are aqueous hydroxylamine and an aqueous solution of the amines. Both product streams can be purified in further process steps to give a saleable product.

摘要翻译： 描述了在电子部件的清洁期间处理特别在电子工业中获得的含羟胺溶液的方法。 根据本发明，用蒸汽从废水中除去羟胺。 获得的产物是羟胺水溶液和胺水溶液。 可以在进一步的工艺步骤中纯化两种产物流以得到可售产品。

公开(公告)号：US06436244B1

公开(公告)日：2002-08-20

申请号：US09608973

申请日：2000-06-30

申请人： Stephan Führer ,  Gernot Löhr ,  Werner Schwertfeger

发明人： Stephan Führer ,  Gernot Löhr ,  Werner Schwertfeger

IPC分类号： B01D338

CPC分类号： C07C51/47 ,  B01J49/57 ,  C02F1/42 ,  Y10S203/90

摘要： Fluorinated emulsifier acids bound to an anion exchanger resin can be eluted using a mixture of water, a compound of the formula M—X, in which M is an alkali metal or an alkylammonium ion, and X is hydroxyl, fluoride or chloride, and at least one organic solvent which completely dissolves the other components. For work-up of the eluent, this is advantageously subjected to steam distillation until all volatile constituents have been essentially removed, and the emulsifier acid is liberated from the steam distillation residue using a sufficiently strong acid. This emulsifier acid can advantageously be distilled off and collected as the ammonium salt in aqueous ammonia solution.

摘要翻译： 与阴离子交换树脂结合的氟化乳化剂酸可以使用水，式MX化合物，其中M为碱金属或烷基铵离子，X为羟基，氟化物或氯化物的混合物和至少一种 完全溶解其他组分的有机溶剂。 为了处理洗脱液，有利地进行蒸汽蒸馏，直到基本上除去所有挥发性成分，并且使用足够强的酸从乳液分解残余物中释放出乳化剂酸。 该乳化剂酸可有利地作为铵盐在氨水溶液中蒸馏出并收集。

公开(公告)号：US06383342B1

公开(公告)日：2002-05-07

申请号：US09523963

申请日：2000-03-13

申请人： Jan Öhman

发明人： Jan Öhman

IPC分类号： B01D338

CPC分类号： B01D3/38 ,  D21C1/02 ,  D21C11/06 ,  Y10S203/08 ,  Y10S203/11 ,  Y10S203/16

摘要： A method and system for handling foul condensate containing Hazardous Air Pollutants (HAPs) in a cellulose pulp mill has enhanced energy efficiency and lower cooling water usage, while complying with the Cluster Rules and other environmental regulations. The condensate is fed countercurrently to stripping vapor in the stripping column to produce a HAPs vapor and a clean condensate. Part of the clean condensate is fed from the stripping column reboiler, and the HAPs-rich vapor is directed to the reboiler to at least partially condense while vaporizing the clean condensate into the clean vapor (stripping vapor). The pressure of the stripping vapor is increased, such as utilizing a steam ejector, to about 0.1-30 psig and then is used as the stripping vapor in the stripping column. The non-condensed HAPs-rich vapor is fed to an external condenser, and the dirty condensate from the external condenser and the dirty condensate from the reboiler, are returned to the stripping column.

摘要翻译： 在纤维素纸浆厂中处理含有危险空气污染物（HAP）的污水浓缩物的方法和系统，在符合集群规则和其他环境法规的同时，提高了能源效率和降低了冷却水的使用。 冷凝物与汽提塔中的汽提逆流供应，以产生HAP蒸汽和清洁的冷凝物。 清洁冷凝物的一部分从汽提塔再沸器进料，并且富含HAP的蒸气被引导至再沸器至少部分冷凝，同时将清洁的冷凝物蒸发到干净的蒸汽（汽提蒸汽）中。 汽提蒸汽的压力例如利用蒸汽喷射器增加至约0.1-30psig，然后用作汽提塔中的汽提蒸汽。 将未冷凝的富含HAP的蒸气进料到外部冷凝器，并将来自外部冷凝器的脏的冷凝物和来自再沸器的脏的冷凝物返回到汽提塔。

公开(公告)号：US06605192B1

公开(公告)日：2003-08-12

申请号：US09787616

申请日：2001-03-20

申请人： Gerhard Theis ,  Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant

发明人： Gerhard Theis ,  Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant

IPC分类号： B01D338

CPC分类号： C07C29/80 ,  Y10S203/20 ,  C07C31/202

摘要： A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.

摘要翻译： 一种从水解中回收高纯度单乙二醇的方法，通过压力脱水，优选在电池中进行蒸馏产物，真空脱水和随后的纯化蒸馏，其中在真空脱水期间，取出含有单乙二醇的水流 浓度低于1重量％，优选低于0.1重量％，中等锅炉和低锅炉。 取出的水流，任选地在进一步后处理之后，从体系中除去。

公开(公告)号：US06478930B2

公开(公告)日：2002-11-12

申请号：US09938012

申请日：2001-08-23

申请人： Vijai P. Gupta

发明人： Vijai P. Gupta

IPC分类号： B01D338

CPC分类号： C07C29/84 ,  B01D3/40 ,  C07B63/00 ,  C07C41/42 ,  Y10S203/11 ,  C07C43/11 ,  C07C31/205 ,  C07C31/202

摘要： A distillation procedure is provided for the separation of impurities from organic materials such as glycols and glycol ethers whereby a liquid stripping component is interfaced into a distillation column with or below the organic material introduction, heat being provided by a reboiler, the stripping component and impurities being removed overhead.

公开(公告)号：US06306263B1

公开(公告)日：2001-10-23

申请号：US09283110

申请日：1999-03-31

申请人： Vijai P. Gupta

发明人： Vijai P. Gupta

IPC分类号： B01D338

CPC分类号： C07C29/84 ,  B01D3/40 ,  C07B63/00 ,  C07C41/42 ,  Y10S203/11 ,  C07C43/11 ,  C07C31/205 ,  C07C31/202

摘要： A distillation procedure is provided for the separation of impurities from organic materials such as glycols and glycol ethers whereby a liquid stripping component is interfaced into a distillation column with or below the organic material introduction, heat being provided by a reboiler, the stripping component and impurities being removed overhead.

摘要翻译： 提供了一种蒸馏方法，用于从有机材料如二醇和二醇醚中分离杂质，由此将液体汽提组分与有机材料导入或低于有机材料导入的蒸馏塔相接口，由再沸器提供热量，汽提组分和杂质 被清除。

公开(公告)号：US06706153B2

公开(公告)日：2004-03-16

申请号：US09226718

申请日：1999-01-07

申请人： Yvonne H. Frentzen ,  Nicolaas F. Haasen ,  Henricus F. W. Wolters

发明人： Yvonne H. Frentzen ,  Nicolaas F. Haasen ,  Henricus F. W. Wolters

IPC分类号： B01D338

CPC分类号： C07D201/16

摘要： The invention relates to a process for the separation of a ketoxime or aldoxime from a ketoxime- or aldoxime-containing amide mixture in which the ketoxime or aldoxime is separated from the amide mixture by distillation. This has proved to be a very simple and direct method for separating the ketoxime and/or aldoxime from the desired amide.

摘要翻译： 本发明涉及从含有酮肟或醛肟的酰胺混合物中分离酮肟或醛肟的方法，其中酮肟或醛肟通过蒸馏与酰胺混合物分离。 已证明这是一种非常简单和直接的方法，用于将酮肟和/或醛肟与所需酰胺分离。