利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.022 秒)

    Process for preparing a chromium-based catalyst for the polymerization and/or copolymerization of olefins
    4.
    发明授权
    Process for preparing a chromium-based catalyst for the polymerization and/or copolymerization of olefins 有权
    制备用于烯烃聚合和/或共聚的铬基催化剂的方法

    公开(公告)号：US07705097B2

    公开(公告)日：2010-04-27

    申请号：US11628827

    申请日：2005-06-09

    申请人： Shahram Mihan ,  Andreas Haufe ,  Peter Kölle ,  Joachim Wulff-Döring ,  Ingo Treffkorn ,  Guido Funk

    发明人： Shahram Mihan ,  Andreas Haufe ,  Peter Kölle ,  Joachim Wulff-Döring ,  Ingo Treffkorn ,  Guido Funk

    IPC分类号： C08F4/22 ,  C08F4/16 ,  B01J31/34 ,  B01J31/38

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F2410/04 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/17 ,  C08F2500/12 ,  C08F4/22 ,  C08F4/025 ,  C08F4/16

    摘要： Process for preparing a supported catalyst for the polymerization and/or copolymerization of olefins which has a chromium content of from 0.01 to 5% by weight, based on the element, which comprises (a) preparing a homogeneous solution comprising an organic or inorganic chromium compound and at least one further organic or inorganic compound of elements selected from among Mg, Ca, Sr, B, Al, Si, P, Bi, Sc, V, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W in a protic or aprotic polar solvent, (b) bringing the solution from a) into contact with a finely divided inorganic support to form a catalyst precursor, (c) if appropriate, removing the solvent from the catalyst precursor and (d) calcining the catalyst precursor at temperatures of from 350 to 950° C., preferably 400 to 900° C., under oxidative conditions.

    摘要翻译： 制备用于烯烃聚合和/或共聚的负载催化剂的方法，该催化剂的铬含量为0.01至5重量％，基于该元素，其包括（a）制备包含有机或无机铬化合物的均匀溶液 以及选自Mg，Ca，Sr，B，Al，Si，P，Bi，Sc，V，Mn，Fe，Co，Ni，Cu，Zn，Zr，Nb中的至少一种有机或无机化合物， Mo，Ru，Rh，Pd，Hf，Ta，W在质子或非质子极性溶剂中，（b）使来自a）的溶液与细碎的无机载体接触以形成催化剂前体，（c） 从催化剂前体中除去溶剂，和（d）在氧化条件下，在350-950℃，优选400-900℃的温度下煅烧催化剂前体。