利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

35 条记录 (耗时 0.038 秒)

    Multistage process for the preparation of oxo aldehydes and/or alcohols
    6.
    发明授权
    Multistage process for the preparation of oxo aldehydes and/or alcohols 有权
    用于制备羰基醛和/或醇的多步法

    公开(公告)号：US06482992B2

    公开(公告)日：2002-11-19

    申请号：US09904893

    申请日：2001-07-16

    申请人： Bernhard Scholz ,  Franz Nierlich ,  Alfred Kaizik ,  Dieter Hess ,  Wilfried Bueschken ,  Klaus-Diether Wiese ,  Dirk Roettger ,  Guido Protzmann

    发明人： Bernhard Scholz ,  Franz Nierlich ,  Alfred Kaizik ,  Dieter Hess ,  Wilfried Bueschken ,  Klaus-Diether Wiese ,  Dirk Roettger ,  Guido Protzmann

    IPC分类号： C07C4550

    CPC分类号： C07C45/50 ,  C07C29/16 ,  C07C31/125 ,  C07C47/02

    摘要： Olefins are hydroformylated to give alcohols and/or aldehydes in a plurality of hydroformylation stages, each of which comprises: a) hydroformylating olefins having a carbon atom content of 6 to 24 carbon atoms in the presence of a cobalt- or rhodium catalyst in a reactor to the point of conversion of olefin reactant to product of 20 to 98%; b) removing the catalyst from the resulting liquid discharged from the reactor; c) separating the resulting liquid hydroformylation mixture into a low-boiler fraction comprising olefins and paraffins, and a bottoms fraction comprising aldehydes and/or alcohols; and d) reacting the olefins present in the low-boiler fraction in subsequent process stages comprising steps a, b and c and combining the bottoms fractions of process steps c) of all process stages.

    摘要翻译： 烯烃被加氢甲酰化以在多个加氢甲酰化阶段中产生醇和/或醛，其各自包括：a）在反应器中的钴或铑催化剂存在下，碳原子含量为6至24个碳原子的烯烃加氢甲酰化 到烯烃反应物转化为产物的程度为20至98％; b）从从反应器排出的所得液体中除去催化剂; c）将所得液体加氢甲酰化混合物分离成包含烯烃和链烷烃的低沸点馏分，以及 包含醛和/或醇的底部馏分; 和在下列工艺阶段中存在的低沸点馏分中存在的烯烃反应，包括步骤a，b和c，并组合所有工艺步骤的工艺步骤c）的底部馏分。

    Process for preparing isobutene by cleaving MTBE-containing mixtures
    10.
    发明授权
    Process for preparing isobutene by cleaving MTBE-containing mixtures 有权
    通过裂解含MTBE的混合物制备异丁烯的方法

    公开(公告)号：US08633345B2

    公开(公告)日：2014-01-21

    申请号：US13054115

    申请日：2009-05-19

    申请人： Markus Winterberg ,  Dirk Roettger ,  Rainer Bukohl ,  Holger Wiederhold ,  Walter Luh

    发明人： Markus Winterberg ,  Dirk Roettger ,  Rainer Bukohl ,  Holger Wiederhold ,  Walter Luh

    IPC分类号： C07C4/02

    CPC分类号： C07C1/20 ,  C07C7/04 ,  C07C2521/12 ,  C07C2523/02 ,  C07C11/09

    摘要： A process for preparing isobutene including cleaving a mixture obtained from an MTBE-containing feedstock and/or an MTBE-containing stream, affording a stream of reaction products consisting of isobutene, methanol, MTBE and by-products, the latter consisting of a1) high boilers having a boiling range above 55° C. at a pressure of 0.1 MPa; a2) medium boilers having a boiling range of 12 to 55° C. at a pressure of 0.1 MPa; and a3) low boilers having a boiling range below 12° C. at a pressure of 0.1 MPa; distillatively separating into a stream which contains the isobutene product and low boilers, and a stream which contains MTBE, methanol, medium boilers and high boilers; distillatively separating to obtain an MTBE-containing stream and a methanol-containing high boiler stream; recycling an MTBE-containing stream in which the medium boilers being removed completely or partially before recycling.

    摘要翻译： 一种制备异丁烯的方法，包括切割由含MTBE的原料和/或含MTBE的料流获得的混合物，得到由异丁烯，甲醇，MTBE和副产物组成的反应产物流，后者由a1）高 锅炉沸点范围在55℃以上，压力为0.1MPa; a2）沸点范围为12〜55℃，压力为0.1MPa的中压锅炉; 和a3）在0.1MPa的压力下沸点低于12℃的低锅炉; 蒸馏分离成含有异丁烯产物和低锅炉的料流，以及含有MTBE，甲醇，中等锅炉和高锅炉的料流; 蒸馏分离得到含MTBE的料流和含甲醇的高锅炉料流; 回收含MTBE的流，其中中等锅炉在再循环之前被完全或部分去除。