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111 条记录 (耗时 0.046 秒)

    Process for producing DMC catalysts
    22.
    发明授权
    Process for producing DMC catalysts 有权
    生产DMC催化剂的方法

    公开(公告)号：US06780813B1

    公开(公告)日：2004-08-24

    申请号：US10148555

    申请日：2002-05-30

    申请人： Jörg Hofmann ,  Bernd Klinksiek ,  Stephan Ehlers ,  Thorsten Fechtel ,  Franz Föhles ,  Pieter Ooms

    发明人： Jörg Hofmann ,  Bernd Klinksiek ,  Stephan Ehlers ,  Thorsten Fechtel ,  Franz Föhles ,  Pieter Ooms

    IPC分类号： B01J2726

    CPC分类号： B01J27/26 ,  C01C3/11 ,  C08G65/2663

    摘要： The invention relates to an improved method of producing double-metal cyanide (DMC) catalysts for the production of polyether polyols by polyaddition of alkylene oxides to starter compounds containing active hydrogen atoms, in which the DMC catalyst dispersion is produced using a mixing nozzle, preferably a jet disperser. The DMC catalysts produced in this way have an increased activity in polyether polyol production, reduced particle size and narrower particle size distribution.

    摘要翻译： 本发明涉及一种制备双金属氰化物（DMC）催化剂的改进方法，所述双金属氰化物（DMC）催化剂是通过将环氧烷烃加成到含活性氢原子的起始化合物中制备聚醚多元醇，其中使用混合喷嘴制备DMC催化剂分散体 喷气分散机 以这种方式生产的DMC催化剂在聚醚多元醇生产中具有增加的活性，减小的粒度和较窄的粒度分布。

    Double-metal cyanide catalysts for preparing polyether polyols
    24.
    发明授权
    Double-metal cyanide catalysts for preparing polyether polyols 失效
    用于制备聚醚多元醇的双金属氰化物催化剂

    公开(公告)号：US06852663B2

    公开(公告)日：2005-02-08

    申请号：US10138080

    申请日：2002-05-03

    申请人： Pieter Ooms ,  Jöerg Hofmann ,  Walter Schäfer

    发明人： Pieter Ooms ,  Jöerg Hofmann ,  Walter Schäfer

    IPC分类号： B01J27/26 ,  C08G65/26 ,  B01J31/00

    CPC分类号： C08G65/2663 ,  B01J27/26

    摘要： The invention is directed to a double-metal cyanide catalyst for the preparation of a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms, wherein the DMC catalyst comprises a) at least one double-metal cyanide compound; b) at least one organic complexing ligand which is not a polyether, polyester, polycarbonate, polyalkylene glycol sorbitan ester, polyalkylene glycol glycidyl ether, glycidyl ether, glycoside, carboxylic acid ester of polyhydric alcohol, cyclodextrin, phosphorus compound, α,β-unsaturated carboxylic acid ester or ionic surfactant compound; c) at least one polyether; and d) at least one polyester, polycarbonate, polyalkylene glycol sorbitan ester, polyalkylene glycol glycidyl ether, glycidyl ether, glycoside, carboxylic acid ester of polyhydric alcohol, cyclodextrin, phosphorus compound, α,β-unsaturated carboxylic acid ester or ionic surfactant compound. The catalyst of the present invention has increased activity in the preparation of a polyether polyol.

    摘要翻译： 本发明涉及用于通过将烯化氧加成到含有活性氢原子的起始化合物上制备聚醚多元醇的双金属氰化物催化剂，其中DMC催化剂包含a）至少一种双金属氰化物化合物 ; b）至少一种不是聚醚，聚酯，聚碳酸酯，聚亚烷基二醇脱水山梨糖醇酯，聚亚烷基二醇缩水甘油醚，缩水甘油醚，糖苷，多元醇的羧酸酯，环糊精，磷化合物，α，β-不饱和的有机络合配体 羧酸酯或离子表面活性剂化合物; c）至少一种聚醚; 和d）至少一种聚酯，聚碳酸酯，聚亚烷基二醇脱水山梨糖醇酯，聚亚烷基二醇缩水甘油醚，缩水甘油醚，糖苷，多元醇的羧酸酯，环糊精，磷化合物，α，β-不饱和羧酸酯或离子表面活性剂化合物。 本发明的催化剂在制备聚醚多元醇时具有增加的活性。

    PROCESS FOR THE PREPARATION OF POLYCARBONATES AND DIARYL CARBONATE
    27.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYCARBONATES AND DIARYL CARBONATE 有权
    制备聚碳酸酯和二氧化碳的方法

    公开(公告)号：US20090240021A1

    公开(公告)日：2009-09-24

    申请号：US12370182

    申请日：2009-02-12

    申请人： Helmut-Werner Heuer ,  Pieter Ooms

    发明人： Helmut-Werner Heuer ,  Pieter Ooms

    IPC分类号： C08G64/30 ,  B01J19/18

    CPC分类号： C08G64/24 ,  C07C68/02 ,  C07C69/96

    摘要： The present invention relates to a process for the continuous preparation of polycarbonates or diaryl carbonates by the method of the phase boundary process, in which both the mixing of the organic and aqueous phase and the upstream oligomerization step or aryl chloroformate and/or diaryl carbonate preparation step are effected in a special pump.

    摘要翻译： 本发明涉及通过相界方法连续制备聚碳酸酯或二芳基碳酸酯的方法，其中有机相和水相的混合与上游低聚步骤或氯甲酸芳基酯和/或碳酸二芳基酯制备 步骤在特殊的泵中进行。

    Process for preparing 4-aminodiphenylamine
    30.
    发明授权
    Process for preparing 4-aminodiphenylamine 失效
    制备4-氨基二苯胺的方法

    公开(公告)号：US06414192B1

    公开(公告)日：2002-07-02

    申请号：US10007014

    申请日：2001-11-06

    申请人： Michael Schelhaas ,  Carl Casser ,  Dietmar Bielefeldt ,  Pieter Ooms ,  Joachim Haider ,  Manfred Jautelat ,  Christian Laue ,  Henry Giera

    发明人： Michael Schelhaas ,  Carl Casser ,  Dietmar Bielefeldt ,  Pieter Ooms ,  Joachim Haider ,  Manfred Jautelat ,  Christian Laue ,  Henry Giera

    IPC分类号： C07C20900

    CPC分类号： C07C209/38 ,  C07C211/55

    摘要： The invention provides a process for preparing 4-aminodiphenylamine, an important starting product for synthesizing antioxidants and stabilizers in the rubber and polymer industry, by hydrogenating nitrosobenzene with hydrogen in the presence of a proton acid as catalyst and in the presence of a hydrogenating catalyst, optionally in the presence of an inert organic solvent and thermally decomposing the 4-ADPA ammonium salt produced in this way, wherein 4-ADPA is obtained. 4-aminodiphenylamine is produced in good yields and high purity by the process according to the present invention. Furthermore, no effluent is produced, which makes the process particularly economic and ecological.

    摘要翻译： 本发明提供一种制备4-氨基二苯胺的方法，该方法是在质子酸作为催化剂存在下，在氢化催化剂存在下，通过在氢气存在下，用氢气将亚硝基苯氢化，在橡胶和聚合物工业中合成抗氧化剂和稳定剂的重要起始产物， 任选地在惰性有机溶剂的存在下，并以这种方式产生的4-ADPA铵盐热分解，得到4-ADPA。4-氨基二苯胺通过本发明的方法以良好的产率和高纯度生产。 此外，没有产生流出物，这使得该过程特别经济和生态。