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166 条记录 (耗时 0.028 秒)

    Method for the production of defined mixtures of thf, bdo and gbl by gas phase hydrogenation
    91.
    发明申请
    Method for the production of defined mixtures of thf, bdo and gbl by gas phase hydrogenation 失效

    公开(公告)号：US20070135650A1

    公开(公告)日：2007-06-14

    申请号：US10581074

    申请日：2004-12-04

    申请人： Markus Rosch ,  Rolf Pinkos ,  Michael Hesse ,  Stephan Schlitter ,  Henrik Junicke ,  Olga Schubert ,  Alexander Weck ,  Gunther Windecker

    发明人： Markus Rosch ,  Rolf Pinkos ,  Michael Hesse ,  Stephan Schlitter ,  Henrik Junicke ,  Olga Schubert ,  Alexander Weck ,  Gunther Windecker

    IPC分类号： C07D307/02

    CPC分类号： C07D307/33 ,  C07D307/08

    摘要： The present invention provides a process for variably preparing mixtures of optionally alkyl-substituted BDO, GBL and THF by two-stage hydrogenation in the gas phase of C4 dicarboxylic acids and/or derivatives thereof, which comprises a) in a first step in the gas phase, hydrogenating a gas stream of C4 dicarboxylic acids and/or derivatives thereof over a catalyst at a pressure of from 2 to 100 bar and a temperature of from 200° C. to 300° C. in a first reactor in the presence of a catalyst in the form of shaped catalyst bodies having a volume of less than 20 mm3, said catalyst from 5 to 95% by weight of oxide of copper and from 5 to 95% by weight of an oxide having acidic sites, to give a stream mainly containing of optionally alkyl-substituted GBL and THF, b) removing any succinic anhydride formed by partial condensation, c) converting the products remaining predominantly in the gas phase in the partial condensation, THF, water and GBL, under the same pressure or under a pressure reduced by the pressure drops in the hydrogenation circuit and at a temperature of from 150 to 240° C., in a second reactor over a catalyst which ≦95% by weight of CuO and from 5 to 95% by weight of one or more oxides selected from the group of ZnO, Al2O3, SiO2, TiO2, ZrO2, CeO2, MgO, CaO, SrO, BaO, La2O3 and Mn2O3 to give a stream comprising a mixture of BDO, GBL and THF, d) removing the hydrogen from the products and recycling it into the hydrogenation, e) distillatively separating the products, THF, BDO, GBL and water, if appropriate recycling a GBL-rich stream into the second reactor or if appropriate discharging it, and working up BDO, THF and GBL distillatively, and setting the ratio of the products, THF, GBL and BDO, relative to one another within the range from 10 to 100% by weight of THF, from 0 to 90% by weight of GBL and from 0 to 90% by weight of BDO only by varying the temperatures in the two hydrogenation zones and also if appropriate the GBL recycle stream.

    Method for producing tetrahydrofurane copolymers
    93.
    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 producing gamma-butyrolactone
    98.
    发明授权
    Method for producing gamma-butyrolactone 有权
    γ-丁内酯的制造方法

    公开(公告)号：US06521763B1

    公开(公告)日：2003-02-18

    申请号：US10069771

    申请日：2002-02-28

    申请人： Rolf Fischer ,  Rolf Pinkos

    发明人： Rolf Fischer ,  Rolf Pinkos

    IPC分类号： C07D30733

    CPC分类号： C07D307/33

    摘要： In a process for preparing GBL by reaction of 1,4 butanediol over a copper catalyst, use is made of a 1,4 butanediol-containing reaction mixture which comprises further alcohols other than 1,4-butanediol and water.

    摘要翻译： 在通过1,4-丁二醇与铜催化剂反应制备GBL的方法中，使用含有1,4-丁二醇的反应混合物，其还包含除1,4-丁二醇和水以外的其它醇。

    Method of producing cyclic, &agr;, &bgr;-unsaturated ketones
    99.
    发明授权
    Method of producing cyclic, &agr;, &bgr;-unsaturated ketones 失效
    制备环状α，β-不饱和酮的方法

    公开(公告)号：US06433229B1

    公开(公告)日：2002-08-13

    申请号：US09914796

    申请日：2001-09-05

    申请人： Rolf Fischer ,  Rolf Pinkos

    发明人： Rolf Fischer ,  Rolf Pinkos

    IPC分类号： C07C4500

    CPC分类号： C07C45/65 ,  B01J23/00 ,  B01J23/06 ,  B01J23/40 ,  B01J23/72 ,  B01J23/888 ,  B01J35/10 ,  Y02P20/582 ,  C07C49/597 ,  C07C49/603

    摘要： Preparation of cyclic, &agr;,&bgr;-unsaturated ketones of formula II by dehydrogenation of cyclic ketones which conform to formula I in which n denotes an integer from 1 to 10, and which may be substituted, at elevated temperature in the presence of catalysts in the vapor phase, wherein the reaction is carried out in the absence of oxygen or in the presence of less than 0.5 mol of oxygen per mol of compound I at temperatures ranging from 250° to 600° C. and using catalysts having a surface area (BET) of more than 0.5 m2/g.

    摘要翻译： 通过使符合式Iin的环酮脱氢制备式II的环状α，β-不饱和酮，其中n表示1至10的整数，并且可以在升高的温度下在蒸气中的催化剂存在下被取代 相，其中反应在250℃至600℃的温度范围内，在不存在氧气的情况下或在每摩尔化合物I小于0.5摩尔的氧气存在下进行，并使用具有表面积（BET） 超过0.5 m2 / g。

    Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone
    100.
    发明授权
    Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone 失效
    生产1,4-丁二醇，四氢呋喃和γ-丁内酯的混合物的方法

    公开(公告)号：US06433192B1

    公开(公告)日：2002-08-13

    申请号：US09673847

    申请日：2001-06-04

    申请人： Rolf Fischer ,  Gerd Kaibel ,  Rolf Pinkos ,  Ralf-Thomas Rahn

    发明人： Rolf Fischer ,  Gerd Kaibel ,  Rolf Pinkos ,  Ralf-Thomas Rahn

    IPC分类号： C07D30702

    CPC分类号： C07D315/00 ,  C07C29/149 ,  C07D307/08 ,  C07C31/207

    摘要： In a process for preparing 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone by oxidation of butane to give a product stream comprising maleic anhydride, absorption of maleic anhydride from the product stream using a high-boiling alcohol to give a liquid absorption product comprising monoesters and diesters of maleic acid and also high-boiling alcohol, after-esterification of the liquid absorption product and subsequent hydrogenation of the after-esterified product in the liquid phase, the high-boiling alcohol is a polyhydric alcohol having a boiling point at atmospheric pressure of above 233° C. and the after-esterified product has an acid number of less than 30 mg KOH/g and a water content of less than 1% by weight.

    摘要翻译： 在通过丁烷氧化制备1,4-丁二醇，四氢呋喃和γ-丁内酯以产生包含马来酸酐的产物流的方法中，使用高沸点醇从产物流中吸收马来酸酐，得到液体吸收产物，其包含 马来酸的单酯和二酯以及高沸点醇，液体吸收产物的酯化和后期酯化产物在液相中的氢化后，高沸点醇是沸点在大气压下的多元醇 高于233℃的压力，后酯化产物的酸值小于30mg KOH / g，水含量小于1重量％。