公开(公告)号：US06759560B2

公开(公告)日：2004-07-06

申请号：US10148929

申请日：2002-06-05

申请人： Josef Guth ,  Holger Friedrich ,  Hans-Josef Sterzel ,  Gerd Kaibel ,  Kirsten Burkart ,  Elke Hoffmann

发明人： Josef Guth ,  Holger Friedrich ,  Hans-Josef Sterzel ,  Gerd Kaibel ,  Kirsten Burkart ,  Elke Hoffmann

IPC分类号： C07C3130

CPC分类号： B01D3/141 ,  B01D1/2856 ,  C07C29/70 ,  C07C31/30

摘要： Alkali metal methoxides are prepared from aqueous alkali metal hydroxide, which may have been admixed with methanol, and methanol in a reaction column having at least 5, preferably from 15 to 30, theoretical plates between the feed point for the aqueous alkali metal hydroxide and the feed point for the methanol. The gaseous methanol/water mixture formed in the reaction is fractionated in a rectification column. In one variant of the invention, the trays chosen for the reaction column configured as a bubble cap tray, valve tray or sieve tray column are trays in which not more than 5%, preferably

摘要翻译： 碱金属甲醇盐由碱金属氢氧化物水溶液制成，碱金属氢氧化物可与甲醇混合，甲醇在反应塔中具有至少5个，优选15至30个理论塔板的碱金属氢氧化物水溶液和 甲醇的进料点。 在反应中形成的气态甲醇/水混合物在精馏塔中分馏。在本发明的一个变体中，为构成气泡盖，阀盘或筛板塔的反应塔选择的塔板是不在其中的托盘 超过5％，优选<1％的液体通过相应的托盘。在本发明方法的另一变型中，双壁反应塔的双壁温度为3至10℃ 高于柱内部温度，并且具有随机或有序填料，其中液体流量与蒸气流量的平均比率在塔的所有子区域中不超过15％以上，优选不超过3％ 截面对应于总柱横截面的2％以上。

公开(公告)号：US20110313207A1

公开(公告)日：2011-12-22

申请号：US13203504

申请日：2010-02-17

申请人： Gerd Kaibel ,  Tilman Sirch ,  Raimund Felder ,  Josef Guth

发明人： Gerd Kaibel ,  Tilman Sirch ,  Raimund Felder ,  Josef Guth

IPC分类号： B01D3/00 ,  C07C29/00

CPC分类号： B01D3/009 ,  B01D1/2856 ,  B01D3/14 ,  C07C29/70 ,  Y02P20/127 ,  C07C31/30

摘要： The invention relates to a process for distillative workup of a methanol/water mixture, in which a methanol/water mixture is added to a distillation column (1), an essentially methanol-comprising vapor stream is withdrawn at the top of the distillation column (1) and an essentially water-comprising bottom stream at the bottom of the distillation column (1), at least a portion of the essentially methanol-comprising vapor stream is compressed and the compressed vapor stream is added as heating vapor to an evaporator (11) in which at least a portion of the methanol/water mixture to be separated is evaporated. The invention further relates to a process for preparing alkali metal methoxides in a reaction column (31) by adding methanol and alkali metal hydroxide solution to the reaction column (31), withdrawing alkali metal methoxide dissolved in methanol at the lower end of the reaction column (31) and withdrawing a methanol/water mixture at the upper end of the reaction column (31), and working up the methanol/water mixture by the process for distillative workup.

摘要翻译： 本发明涉及一种用于甲醇/水混合物的蒸馏处理方法，其中将甲醇/水混合物加入到蒸馏塔（1）中，基本上含甲醇的蒸气流在蒸馏塔的顶部排出（ 1）和在蒸馏塔（1）底部的基本上含水的底部流，至少部分基本上含甲醇的蒸气流被压缩，并将压缩的蒸气流作为加热蒸气加入到蒸发器（11 ），其中要分离的至少一部分甲醇/水混合物蒸发。 本发明还涉及通过向反应塔（31）中加入甲醇和碱金属氢氧化物溶液，在反应塔（31）的下端除去溶解在甲醇中的碱金属甲醇盐，在反应塔（31）中制备碱金属甲醇盐的方法 （31），并在反应塔（31）的上端取出甲醇/水混合物，并通过蒸馏处理方法处理甲醇/水混合物。

公开(公告)号：US20140061020A1

公开(公告)日：2014-03-06

申请号：US14057017

申请日：2013-10-18

申请人： Willi Schmidt ,  Gerd Kaibel ,  Elke Geißler ,  Wolfgang Reif ,  Manfred Julius ,  Frank-Friedrich Pape

发明人： Willi Schmidt ,  Gerd Kaibel ,  Elke Geißler ,  Wolfgang Reif ,  Manfred Julius ,  Frank-Friedrich Pape

IPC分类号： B01D3/32

CPC分类号： B01D3/32 ,  B01D3/14 ,  B01D3/42 ,  C07C213/04 ,  C07C213/10 ,  Y02P20/582 ,  C07C215/08 ,  C07C215/10

摘要： Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s) are described. The separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)).

摘要翻译： 描述了包含一种或多种链烷醇胺的混合物的连续蒸馏分离的装置和方法。 分离在一个或多个分隔壁柱中进行，并且链烷醇胺或链烷醇胺作为侧馏分流或侧馏分流（侧馏分）排出。

公开(公告)号：US20100113805A1

公开(公告)日：2010-05-06

申请号：US12532660

申请日：2008-03-19

申请人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

发明人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

IPC分类号： C07D307/60

CPC分类号： B01D3/14 ,  B01D3/141 ,  C07C51/573 ,  C07C57/145

摘要： What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by i) introducing the solution into the side of a feed column with a rectifying section disposed above the feed point and a stripping section disposed below the feed point, ii) providing an upper combining column which communicates with the upper end of the rectifying section and a lower combining column which communicates with the lower end of the stripping section, iii) providing a draw column which communicates with the upper combining column and the lower combining column, iv) drawing maleic anhydride off as a side draw from the draw column, and drawing off compounds having a lower boiling point than maleic anhydride at the top of the upper combining column and the high-boiling absorbent at the bottom of the lower combining column. The maleic anhydride obtained as a side draw has a low content of acrylic acid and acetic acid.

摘要翻译： 所描述的是通过蒸馏从马来酸酐在高沸点吸收剂中的溶液获得马来酸酐的方法，其通过烃的气相氧化和至少部分吸收氧化产物进入吸收剂中获得， 将溶液引入进料塔的侧面，其中设置在进料点上方的精馏部分和设置在进料点下方的汽提部分，ii）提供与精馏部分的上端连通的上部混合塔和下部 组合柱与汽提部分的下端连通，iii）提供与上部混合塔和下部混合塔连通的牵引柱，iv）将拉伸马来酸酐作为拉伸塔的牵引拉出，拉出 在上部混合塔的顶部具有比马来酸酐低的沸点的化合物和在底部o的高沸点吸收剂 f下组合列。 作为侧馏分获得的马来酸酐具有低含量的丙烯酸和乙酸。

公开(公告)号：US20100081804A1

公开(公告)日：2010-04-01

申请号：US12090377

申请日：2006-10-16

申请人： Bram Willem Hoffer ,  Hartwig Voss ,  Ekkehard Schwab ,  Udo Rheude ,  Gerd Kaibel ,  Mathias Haake ,  Jan Eberhardt ,  Michael Karcher

发明人： Bram Willem Hoffer ,  Hartwig Voss ,  Ekkehard Schwab ,  Udo Rheude ,  Gerd Kaibel ,  Mathias Haake ,  Jan Eberhardt ,  Michael Karcher

IPC分类号： C07D265/30 ,  C07C45/00

CPC分类号： C07C45/62 ,  C07C47/228 ,  C07C49/04 ,  C07C47/02

摘要： A process is described for continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, wherein the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.

摘要翻译： 描述了在第一部分氢气压力下在氢气存在下将不饱和化合物连续氢化的方法，其中第一氢化催化剂的颗粒悬浮在其中溶解不饱和化合物的液相中，液相，以及 在第一个温度下，通过气泡塔反应器与重力方向并流，将来自泡罩塔反应器的流出物送入气液分离，将液相送至交叉过滤，得到滞留物 和滤液，将滞留物再循环到泡罩塔反应器中，并且在第二部分氢气压力和第二温度下在氢气存在下将滤液通过第二氢化催化剂床，其中第二 部分氢气压力比第一部分氢气压力高至少10巴。

公开(公告)号：US20090143601A1

公开(公告)日：2009-06-04

申请号：US12300571

申请日：2007-05-16

申请人： Rolf Pinkos ,  Gerd Kaibel ,  Ellen Dahlhoff ,  Gunther Windecker ,  Jens Heimann

发明人： Rolf Pinkos ,  Gerd Kaibel ,  Ellen Dahlhoff ,  Gunther Windecker ,  Jens Heimann

IPC分类号： C07D307/60

CPC分类号： C07C51/573 ,  C07C57/145

摘要： The present invention provides a process for preventing fumaric acid deposits in the preparation of maleic anhydride, comprising the following steps:a) absorption of a C4-dicarboxylic acid or of a derivative from a crude product mixture into an organic solvent or water as an absorbent,b) removal of the C4-dicarboxylic acid or of a derivative from the absorbent,the absorbent thus recovered being catalytically hydrogenated fully or partly and recycled fully or partly into the absorption stage (a).

摘要翻译： 本发明提供了一种在制备马来酸酐中防止富马酸沉积的方法，包括以下步骤：a）将C4-二羧酸或衍生物从粗产物混合物中吸收到作为吸收剂的有机溶剂或水中 b）从吸收剂中除去C4-二羧酸或衍生物，这样回收的吸收剂被完全或部分催化氢化，或者完全或部分地再循环到吸收阶段（a）中。

公开(公告)号：US07345205B2

公开(公告)日：2008-03-18

申请号：US10519684

申请日：2003-07-14

申请人： Hans-Georg Goebbel ,  Gerd Kaibel ,  Christian Miller ,  Walter Dobler ,  Thomas Dirnsteiner ,  Thilo Hahn ,  Klaus Breuer ,  Werner Aquila

发明人： Hans-Georg Goebbel ,  Gerd Kaibel ,  Christian Miller ,  Walter Dobler ,  Thomas Dirnsteiner ,  Thilo Hahn ,  Klaus Breuer ,  Werner Aquila

IPC分类号： C07C45/62

CPC分类号： C07C45/62 ,  C07C49/04

摘要： A process is described for preparing tetrahydrogeranylacetone in which pseudoionone, geranylacetone and/or dihydrogeranylacetone in a liquid phase, in which particles of a catalyst which is capable of preferentially hydrogenating carbon-carbon double bonds over carbon-oxygen double bonds are suspended, is conducted through a device which inhibits the transport of the catalyst particles in the presence of a hydrogen-containing gas.

摘要翻译： 描述了一种制备四氢ger anyl anyl A A is ger ger ger through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through through 在含氢气体的存在下抑制催化剂颗粒的输送的装置。

公开(公告)号：US20050197504A1

公开(公告)日：2005-09-08

申请号：US10515625

申请日：2003-07-07

申请人： Gerd Kaibel ,  Martin Merger ,  Thomas Domschke ,  Petra Deckert ,  Friedrich Sauer

发明人： Gerd Kaibel ,  Martin Merger ,  Thomas Domschke ,  Petra Deckert ,  Friedrich Sauer

IPC分类号： C07D307/62 ,  C07D305/12

CPC分类号： C07D307/62 ,  Y02P20/582

摘要： The invention relates to a method for the separation of ascorbic acid from a mixture containing ascorbic acid and 2-keto-L-gulonic acid in a polar, preferably aqueous solvent, by means of liquid/liquid extraction using an amide. The method preferably also comprises steps for the back-extraction of the ascorbic acid, recycling of the extraction solvent and/or the back extraction solvent and for isolation of the ascorbic acid from the back extraction solvent. The invention further relates to a method for the production of ascorbic acid from KGA and isolation of the ascorbic acid so produced.

摘要翻译： 本发明涉及通过使用酰胺的液/液萃取从抗坏血酸和2-酮-L-古洛糖酸的混合物中分离抗坏血酸在极性，优选水性溶剂中的方法。 该方法优选还包括用于反萃取抗坏血酸的步骤，提取溶剂和/或反萃取溶剂的再循环以及用于从反萃取溶剂中分离抗坏血酸的步骤。 本发明还涉及从KGA生产抗坏血酸并分离如此生产的抗坏血酸的方法。

公开(公告)号：US06831182B2

公开(公告)日：2004-12-14

申请号：US10433424

申请日：2003-06-04

申请人： Holger Borchert ,  Stephan Schlitter ,  Rolf-Hartmuth Fischer ,  Markus Rösch ,  Frank Stein ,  Ralf-Thomas Rahn ,  Alexander Weck ,  Gerd Kaibel

发明人： Holger Borchert ,  Stephan Schlitter ,  Rolf-Hartmuth Fischer ,  Markus Rösch ,  Frank Stein ,  Ralf-Thomas Rahn ,  Alexander Weck ,  Gerd Kaibel

IPC分类号： C07D30708

CPC分类号： C07D307/08

摘要： The present invention relates to a process for the gas-phase hydrogenation of C4-dicarboxylic acids and/or their derivatives over a catalyst based on copper oxide to give substituted or unsubstituted &ggr;-butyrolactone and/or tetrahydrofuran, which comprises, which a first reaction zone in which the C4-dicarboxylic acid and/or its derivatives is/are reacted to give a mixture comprising a substituted or unsubstituted &ggr;-butyrolactone as main product and a subsequent second reaction zone in which the substituted or unsubstituted &ggr;-butyrolactone present in the mixture from the first hydrogenation step is reacted at a temperature lower than the temperature in the first hydrogenation step to give substituted or unsubstituted tetrahydrofuran.

公开(公告)号：US06387222B1

公开(公告)日：2002-05-14

申请号：US09538503

申请日：2000-03-30

申请人： Christian Tragut ,  Gerd Kaibel

发明人： Christian Tragut ,  Gerd Kaibel

IPC分类号： B01D342

CPC分类号： B01D3/141 ,  B01D3/14 ,  B01D3/146 ,  C07C29/80 ,  Y10S203/20 ,  C07C31/12 ,  C07C31/20

摘要： A method of distillation for separating a material which is solid at ambient temperature from a lower boiling and lower melting point material, and the apparatus.

摘要翻译： 一种蒸馏方法，用于将环境温度下为固体的材料与较低沸点和较低熔点的材料以及该装置分离。