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：US06921830B2

公开(公告)日：2005-07-26

申请号：US10475219

申请日：2002-04-22

申请人： Ralf-Thomas Rahn ,  Alexander Weck ,  Gerd Kaibel

发明人： Ralf-Thomas Rahn ,  Alexander Weck ,  Gerd Kaibel

IPC分类号： C07D307/60 ,  C07C51/215 ,  C07C51/44 ,  C07C51/573 ,  C07C57/145 ,  C07C57/15 ,  C07D307/36

CPC分类号： C07C51/215 ,  C07C51/573 ,  C07C57/145

摘要： In a process for purifying an organic solvent for the absorption of maleic anhydride from a gaseous mixture, in which the maleic anhydride is separated off from the solvent, a substream is taken from the solvent stream, this substream is distilled and returned to the solvent circuit, the proposed improvement comprises separating off a low-boiling fraction and a high-boiling fraction from the fraction consisting essentially of purified solvent and feeding the fraction consisting essentially of purified solvent back into the solvent stream.

摘要翻译： 在从溶剂中分离马来酸酐的气体混合物中纯化用于吸收马来酸酐的有机溶剂的方法中，从溶剂流中取出一个子流，蒸馏该子流并返回溶剂回路 所提出的改进包括从基本上由纯化溶剂组成的馏分中分离低沸点馏分和高沸点馏分，并将基本上由纯化溶剂组成的馏分反馈回溶剂流中。

公开(公告)号：US06846389B2

公开(公告)日：2005-01-25

申请号：US10258938

申请日：2001-05-03

申请人： Gerd Kaibel ,  Alexander Weck ,  Ralf-Thomas Rahn

发明人： Gerd Kaibel ,  Alexander Weck ,  Ralf-Thomas Rahn

IPC分类号： B01D3/14 ,  B01D3/26 ,  C07C27/28 ,  C07C29/80 ,  C07C31/20 ,  C07D307/08 ,  C07D307/33 ,  B01D3/42

CPC分类号： C07D307/33 ,  B01D3/14 ,  B01D3/141 ,  B01D3/146 ,  C07C29/80 ,  C07D307/08 ,  Y10S203/09 ,  Y10S203/20 ,  C07C31/207

摘要： In a process for the continuous fractional distillation of mixtures comprising tetrahydrofuran, γ-butyrolactone and/or 1,4-butanediol to give at least three fractions, the fractionation is carried out in an assembly of distillation columns comprising at least one dividing wall column or at least one assembly of thermally coupled conventional distillation columns.

摘要翻译： 在包括四氢呋喃，γ-丁内酯和/或1,4-丁二醇的混合物的连续分馏的方法中，得到至少三个级分，分馏在包括至少一个分隔壁塔或 至少一个热偶联常规蒸馏塔的组件。

公开(公告)号：US07217679B2

公开(公告)日：2007-05-15

申请号：US10433008

申请日：2001-12-07

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

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

IPC分类号： B01J37/02

CPC分类号： C07D307/33 ,  B01J23/72 ,  B01J23/76 ,  B01J23/80 ,  B01J23/8926 ,  B01J37/0215 ,  B01J37/0223 ,  C07D307/08 ,  C07D315/00

摘要： A catalyst for the hydrogenation of C4-dicarboxylic acids and/or their derivatives, preferably maleic anhydride, in the gas phase comprises from 5 to 100% by weight, preferably from 40 to 90% by weight, of copper oxide and from 0 to 95% by weight, preferably from 10 to 60% by weight, of one or more metals or compounds thereof selected from the group consisting of Al, Si, Zn, Pd, La, Ce, the elements of groups III A to VIII A and groups I A and II A as active composition applied in the form of a thin layer to an inert support material.

摘要翻译： 在气相中用于氢化C 4 - 二羧酸和/或其衍生物，优选马来酸酐的催化剂包含5至100重量％，优选40至90重量％ 的氧化铜和0至95重量％，优选10至60重量％的一种或多种选自Al，Si，Zn，Pd，La，Ce的金属或其化合物，其元素为 作为活性组合物，将IIIA至VIIIA族和IAA和IIA族作为以薄层形式施用于惰性载体材料的活性组合物。

公开(公告)号：US06730800B2

公开(公告)日：2004-05-04

申请号：US10433425

申请日：2003-06-04

申请人： Rolf-Hartmuth Fischer ,  Frank Stein ,  Rolf Pinkos ,  Michael Hesse ,  Michael Jolyon Sprague ,  Markus Rösch ,  Holger Borchert ,  Stephan Schlitter ,  Ralf-Thomas Rahn ,  Alexander Weck

发明人： Rolf-Hartmuth Fischer ,  Frank Stein ,  Rolf Pinkos ,  Michael Hesse ,  Michael Jolyon Sprague ,  Markus Rösch ,  Holger Borchert ,  Stephan Schlitter ,  Ralf-Thomas Rahn ,  Alexander Weck

IPC分类号： C07D33102

CPC分类号： B01J23/72 ,  B01J23/80 ,  C07D307/08

摘要： Unsubstituted or alkyl-substituted THF is obtained by catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or their derivatives using a catalyst comprising 20% by weight, preferably >30% by weight, in particular from 35 to 90% by weight, of an oxidic support having acid centers, at a hot spot temperature of from 240 to 310° C., preferably from 240 to 280° C., and a WHSV over the catalyst of from 0.01 to 1.0, preferably from 0.02 to 1, in particular from 0.05 to 0.5, kg of starting material/l of catalyst x hour.

摘要翻译： 未取代或烷基取代的THF通过使用包含<80重量％，优选<70重量％，特别是10至65重量％的催化剂在C4-二羧酸和/或其衍生物的气相中通过催化氢化获得， 重量的CuO和> 20重量％，优选> 30重量％，特别是35至90重量％的具有酸中心的氧化载体，在热点温度为240-310℃， 优选为240〜280℃，催化剂上的WHSV为0.01〜1.0，优选为0.02〜1，特别优选为0.05〜0.5kg的原料/ l催化剂x小时。

公开(公告)号：US06958404B2

公开(公告)日：2005-10-25

申请号：US10450114

申请日：2001-12-07

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

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

IPC分类号： C07B61/00 ,  C07C51/36 ,  C07C55/10 ,  C07D307/08 ,  C07D307/33 ,  C07D307/58 ,  C07D307/60

CPC分类号： C07D307/33 ,  C07D307/08

摘要： C4-dicarboxylic acids or derivatives thereof are hydrogenated in the gas phase in a fluidized-bed reactor. It is possible to use catalyst compositions known per se.

摘要翻译： C 4 N 4 - 二羧酸或其衍生物在气相中在流化床反应器中氢化。 可以使用本身已知的催化剂组合物。

公开(公告)号：US06888011B2

公开(公告)日：2005-05-03

申请号：US10433012

申请日：2001-12-07

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

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

IPC分类号： B01J23/72 ,  B01J23/76 ,  B01J23/80 ,  B01J35/10 ,  B01J37/00 ,  B01J37/03 ,  C07B61/00 ,  C07D307/08 ,  C07D307/33 ,  C07D315/00

CPC分类号： C07D307/33 ,  B01J23/72 ,  B01J23/76 ,  B01J23/80 ,  B01J35/1061 ,  B01J35/1066 ,  B01J35/108 ,  B01J37/0018 ,  B01J37/03 ,  C07D307/08 ,  C07D315/00

摘要： A hydrogenation catalyst which is suitable, in particular, for the hydrogenation of maleic anhydride and its derivatives to THF or its derivatives comprises copper oxide and at least one further metal or compound thereof, preferably an oxide, selected from the group consisting of Al, Si, Zn, La, Ce, the elements of groups IIIA to VIIIA and the elements of groups IA and IIA and having a pore volume of ≧0.01 ml/g for pore diameters of >50 nm and a ratio of the pore volume of macropores having a diameter of >50 nm to the total pore volume for pores having a diameter of >4 nm of >10%.

摘要翻译： 特别适用于马来酸酐及其衍生物氢化成THF或其衍生物的氢化催化剂包含氧化铜和至少一种其它金属或其化合物，优选选自Al，Si ，Zn，La，Ce，IIIA至VIIIA族的元素和IA和IIA族的元素，孔径> 50nm的细孔容积> 0.01ml / g，孔的孔体积比 具有> 50nm的直径> 50nm的直径> 10nm的孔的总孔体积。

公开(公告)号：US08802019B2

公开(公告)日：2014-08-12

申请号：US13331362

申请日：2011-12-20

申请人： Gerhard Olbert ,  Ulrike Wegerle ,  Grigorios Kolios ,  Albena Kostova ,  Jasmina Kessel ,  Alexander Weck ,  Alireza Rezai

发明人： Gerhard Olbert ,  Ulrike Wegerle ,  Grigorios Kolios ,  Albena Kostova ,  Jasmina Kessel ,  Alexander Weck ,  Alireza Rezai

IPC分类号： B01J19/00 ,  B01J8/00 ,  B01J8/02 ,  B01J8/04 ,  B01J35/02 ,  C07C13/00 ,  C07C5/32 ,  C07C5/42

CPC分类号： B01J19/2485 ,  B01J8/0484 ,  B01J23/626 ,  B01J23/96 ,  B01J37/18 ,  B01J38/12 ,  B01J2219/00085 ,  B01J2219/182 ,  B01J2219/1925 ,  B01J2219/1943 ,  B01J2219/2414 ,  B01J2219/2416 ,  B01J2219/2419 ,  B01J2219/2422 ,  B01J2219/2443 ,  C07C5/48 ,  C07C2523/06 ,  C07C2523/42 ,  Y02P20/52 ,  Y02P20/584 ,  C07C11/06 ,  C07C11/08 ,  C07C11/09 ,  C07C11/167 ,  C07C15/46

摘要： A reactor includes an essentially horizontal cylinder for carrying out an autothermal gas-phase dehydrogenation of a hydrocarbon-comprising gas stream using an oxygen-comprising gas stream to give a reaction gas mixture over a heterogeneous catalyst configured as monolith. The interior of the reactor is divided by a detachable, cylindrical or prismatic housing, which is arranged in the longitudinal direction of the reactor and is gastight in the circumferential direction, into an inner region having one or more catalytically active zones, each having a packing composed of monoliths stacked on top of one another, next to one another and behind one another and before each catalytically active zone in each case a mixing zone having solid internals are provided and into an outer region, which is supplied with an inert gas, arranged coaxially to the inner region. A heat exchanger is connected to the housing at one end of the reactor.

摘要翻译： 反应器包括基本上水平的气缸，用于使用含氧气流进行含烃气流的自热气相脱氢，以在构成为整料的多相催化剂上产生反应气体混合物。 反应器的内部由可拆卸的圆柱形或棱柱形壳体分隔，该壳体沿反应器的纵向方向布置并且在圆周方向上气密地进入具有一个或多个催化活性区域的内部区域，每个区域具有包装 由堆叠在彼此顶部，彼此相邻并且彼此相邻并且在每种情况下的每个催化活性区域之间的整体堆叠提供具有固体内部部分的混合区域并且设置在被供应有惰性气体的外部区域中，该外部区域被供应有惰性气体， 与内部区域同轴。 热交换器在反应器的一端连接到壳体。

公开(公告)号：US20110245517A1

公开(公告)日：2011-10-06

申请号：US12740468

申请日：2009-11-05

申请人： Gunther Windecker ,  Jens Weiguny ,  Alexander Weck ,  Ellen Dahlhoff ,  Ralf Freyberger

发明人： Gunther Windecker ,  Jens Weiguny ,  Alexander Weck ,  Ellen Dahlhoff ,  Ralf Freyberger

IPC分类号： C07D307/08

CPC分类号： C07D307/08

摘要： The present invention relates to a process for preparing tetrahydrofuran by absorption of C4-dicarboxylic acids and/or derivatives thereof from a crude product mixture into an organic solvent or water as absorption medium, removal of the absorption medium, catalytic hydrogenation of the resulting C4-dicarboxylic acids and/or derivatives thereof and distillation of the water-comprising crude tetrahydrofuran in at least one distillation column, wherein THF-comprising waste streams from the distillation are catalytically hydrogenated with complete or partial recirculation to the process.

摘要翻译： 本发明涉及通过将C4-二羧酸和/或其衍生物从粗产物混合物吸收到作为吸收介质的有机溶剂或水中，去除吸收介质，催化氢化所得C4-二羧酸和/ 二羧酸和/或其衍生物，并在至少一个蒸馏塔中蒸馏含水的粗四氢呋喃，其中来自蒸馏的含THF的废物流通过完全或部分再循环进行催化氢化。

公开(公告)号：US07544766B2

公开(公告)日：2009-06-09

申请号：US10540510

申请日：2003-12-23

申请人： Stephan Schlitter ,  Martin Haubner ,  Peter Zehner ,  Michael Hesse ,  Alexander Weck ,  Rolf Pinkos ,  Thomas Graβler

发明人： Stephan Schlitter ,  Martin Haubner ,  Peter Zehner ,  Michael Hesse ,  Alexander Weck ,  Rolf Pinkos ,  Thomas Graβler

IPC分类号： C08G59/00 ,  C08G65/00 ,  C08G65/04 ,  C08G65/06 ,  C08G65/10 ,  C08G65/16 ,  C08G65/20 ,  C08G59/68 ,  C08F2/01 ,  C07C43/04

CPC分类号： C08G65/2654 ,  C08G65/2657

摘要： The present invention relates to a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymer, diester or monoester by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer and of an acidic heterogeneous catalyst based on activated sheet silicates or mixed metal oxides in a fluidized bed.

摘要翻译： 本发明涉及一种通过在至少一种开环和/或共聚单体存在下使四氢呋喃聚合的基础上制备聚四氢呋喃，聚四氢呋喃共聚物，二酯或单酯的方法，以及基于活化的硅酸盐或混合金属氧化物在流化床 床。