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68 条记录 (耗时 0.036 秒)

    Method for producing tetrahydrofurane copolymers
    61.
    发明授权
    Method for producing tetrahydrofurane copolymers 失效
    制备四氢呋喃共聚物的方法

    公开(公告)号：US07094933B2

    公开(公告)日：2006-08-22

    申请号：US10524555

    申请日：2003-07-30

    申请人： Martin Haubner ,  Rolf Pinkos ,  Alexander Weck

    发明人： Martin Haubner ,  Rolf Pinkos ,  Alexander Weck

    IPC分类号： C07C43/13 ,  C07C43/11

    CPC分类号： C08G65/20

    摘要： The present invention provides a process for one-stage preparation of polyoxyalkylene glycols by copolymerizing tetrahydrofuran and alpha,omega-diols in the presence of a heteropolyacid and of a hydrocarbon, which comprises distilling water in a mixture with this hydrocarbon out of the copolymerization.

    摘要翻译： 本发明提供了通过在杂多酸和烃的存在下共聚合四氢呋喃和α，ω-二醇来一步法制备聚氧亚烷基二醇的方法，该方法包括在共聚合中将该混合物中的水与该烃进行蒸馏。

    Method for the production of 1,4- butanediol
    64.
    发明申请
    Method for the production of 1,4- butanediol 失效
    1,4-丁二醇生产方法

    公开(公告)号：US20050182281A1

    公开(公告)日：2005-08-18

    申请号：US10517263

    申请日：2003-06-10

    申请人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rosch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

    发明人： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rosch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

    IPC分类号： C07B61/00 ,  C07C29/149 ,  C07C31/20 ,  C07C31/18

    CPC分类号： C07C29/149 ,  Y02P20/582 ,  C07C31/207

    摘要： The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 10 to 100 bar into a first reactor or into a first reaction zone of a reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted y-butyrolactone; b) introducing the product stream obtained in this way into a second reactor or into a second reaction zone of a reactor at a temperature of from 140° C to 260° C. and catalytically hydrogenating it in the gas phase to optionally alkyl-substituted 1,4-butanediol; steps a) and b) being carried out at the same pressure; c) removing the desired product from intermediates, by-products and any unconverted reactants; d) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages each using a catalyst which comprises ≦95% by weight, preferably from 5 to 95% by weight, in particular from 10 to 80% by weight, of CuO, and ≧5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of an oxidic support, and the product mixture removed from the first hydrogenation stage being introduced without further purification into the second hydrogenation stage.

    摘要翻译： 本发明涉及通过在具有下列物质的C 4 - 二羧酸和/或其衍生物的气相中通过两阶段催化氢化制备任选的烷基取代的1,4-丁二醇的方法 步骤：a）将200-300℃和10-100巴的C 4-14二羧酸或其衍生物的气流引入第一反应器或第一反应 并将其在气相中催化氢化成主要包含烷基取代的γ-丁内酯的产物; b）将以这种方式获得的产物流引入第二反应器或反应器的第二反应区，温度为140℃至260℃，并将其在气相中催化氢化为任选烷基取代的1 ，4-丁二醇; 步骤a）和b）在相同的压力下进行; c）从中间体，副产物和任何未转化的反应物中除去所需的产物; d）任选地将未转化的中间体再循环到一个或两个氢化阶段中，所述氢化阶段各自使用包含<= 95重量％，优选5至95重量％，特别是10至80重量％的CuO ，和> = 5重量％，优选5至95重量％，特别是20至90重量％的氧化载体，并将从第一氢化步骤除去的产物混合物不经进一步纯化引入到 第二加氢阶段。

    Method for the simultaneous production of tetrahydrofurans ad pyrrolidones
    65.
    发明申请
    Method for the simultaneous production of tetrahydrofurans ad pyrrolidones 有权
    同时生产四氢呋喃和吡咯烷酮的方法

    公开(公告)号：US20050119494A1

    公开(公告)日：2005-06-02

    申请号：US10505706

    申请日：2003-02-28

    申请人： Rolf-Hartmuth Fischer ,  Markus Rosch ,  Nils Bottke ,  Alexander Weck ,  Gunther Windecker ,  Michael Hesse ,  Holger Borchert ,  Stephan Schlitter

    发明人： Rolf-Hartmuth Fischer ,  Markus Rosch ,  Nils Bottke ,  Alexander Weck ,  Gunther Windecker ,  Michael Hesse ,  Holger Borchert ,  Stephan Schlitter

    IPC分类号： B01J23/72 ,  B01J23/80 ,  C07B61/00 ,  C07D207/26 ,  C07D207/267 ,  C07D307/08 ,  C07D307/02

    CPC分类号： C07D207/267 ,  C07D307/08

    摘要： A process for coproducing alkyl-substituted or unsubstituted THF and pyrrolidones by catalytically hydrogenating C4-dicarboxylic acids and/or derivatives thereof in the gas phase in the presence of copper catalysts and reacting GBL with ammonia or primary amines to give pyrrolidones comprises a) hydrogenating C4-dicarboxylic acids and/or derivatives thereof in the gas phase at from 200 to 300° C., from 0.1 to 100 bar, catalyst hourly space velocities of from 0.01 to 1 kg of reactant/l of catalyst*hour and reactant/hydrogen molar ratios of from 20 to 800 in the presence of catalysts comprising copper, aluminum and/or zinc to give mixtures of THF and GBL, b) separating the hydrogenation effluent obtained by distillation into a THF/water mixture as the top product and a GBL-containing bottom product, c) separating the THF/water mixture from step b) in a distillation facility consisting of three columns by withdrawing water from the bottom of the first column, recycling water-containing THF from the second into the first column, passing a side stream of the first into the second column, recycling the bottom product of the third column into the first column and withdrawing a distillate at the top of the first column, wherein a side stream of the second column is passed into the third column and the pure THF is obtained as the top product of the third column, d) recovering GBL from the GBL-containing bottom product from step b) by distillation and e) reacting the GBL obtained with ammonia or amines to give corresponding pyrrolidones.

    摘要翻译： 在铜催化剂存在下，在气相中催化氢化C 4 - 二羧酸和/或其衍生物，共同生产烷基取代或未取代的THF和吡咯烷酮的方法，并使GBL与氨或伯胺 得到吡咯烷酮包括：a）在200-300℃，0.1-100巴的气相中氢化C 4-14 - 二羧酸和/或其衍生物，催化剂小时空速为0.01 在包含铜，铝和/或锌的催化剂存在下，至1kg反应物/ l催化剂*小时和反应物/氢摩尔比为20至800，得到THF和GBL的混合物，b）分离所得氢化流出物 通过蒸馏作为顶部产物的THF /水混合物和含有GBL的底部产物，c）通过从第一塔底部排出水分离由三塔组成的蒸馏设备中的步骤b）中的THF /水混合物 ，回收 将含水THF从第二塔进入第一塔，将第一塔的侧流通入第二塔，将第三塔的底部产物再循环到第一塔中并抽出第一塔顶部的馏出物，其中 将第二塔的侧流进入第三塔，得到纯THF作为第三塔的顶部产物，d）通过蒸馏从步骤b）的含GBL的底部产物中回收GBL，和e）使 用氨或胺得到GBL，得到相应的吡咯烷酮。