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    • 1. 发明申请
    • Silica support material, its application in a polyalkene catalyst, and its preparation process
    • 二氧化硅载体材料,其在聚烯烃催化剂中的应用及其制备方法
    • US20060120941A1
    • 2006-06-08
    • US11291154
    • 2005-12-01
    • Jianfeng ChenJirui SongHaikui ZouLixiong Wen
    • Jianfeng ChenJirui SongHaikui ZouLixiong Wen
    • C01B33/12
    • C01B33/193B01J21/08B01J35/08B01J37/0018B01J37/0072C08F4/65916C08F10/00C08F4/025
    • An SiO2 support material used in a polyolefin catalyst, which consists of a hollow silica particle having a wall of some thickness and a process to prepare the silica mesoporous material above and the agglomerated hollow silica particulate, comprising the steps of: taking nanometer-sized calcium carbonate as inorganic template, or taking PMMA, PS, PU as organic template, then making silica grow and synthesize on the surface of the template, and obtaining the hollow silica material by removing the template. The above hollow silica can be used as raw material to prepare an agglomerated hollow silica particulate by particle shaping. Such material has a certain specific surface area, a wide pore size distribution and a large pore volume, and a uniform particle size distribution, so it can be used in many applications such as adsorption material, catalyst material, wave-absorbing material, ceramic material, sensitive material, magnetic material and the like, especially widely used in the polyolefin catalyst.
    • 用于聚烯烃催化剂中的SiO 2支撑材料,其由具有一定厚度的壁的中空二氧化硅颗粒和制备上述二氧化硅介孔材料的方法和团聚的中空二氧化硅颗粒组成,包括 步骤:以纳米级碳酸钙为无机模板,或以PMMA,PS,PU为有机模板,然后在模板表面生成二氧化硅并合成,并通过去除模板获得中空二氧化硅材料。 可以使用上述中空二氧化硅作为原料,通过粒子成型制备凝聚的中空二氧化硅颗粒。 这种材料具有一定的比表面积,宽孔径分布和孔体积大,粒径分布均匀的特点,可用于吸附材料,催化剂材料,吸波材料,陶瓷材料等众多领域 ,敏感材料,磁性材料等,特别广泛用于聚烯烃催化剂中。