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公开(公告)号:US5217938A
公开(公告)日:1993-06-08
申请号:US871791
申请日:1992-04-21
申请人: Donald Reinalda , Paul Blankenstein
发明人: Donald Reinalda , Paul Blankenstein
CPC分类号: B01J23/75 , B01J21/066 , B01J23/74 , B01J37/0009 , C07C1/0445 , B01J35/1019 , B01J35/1038 , C07C2521/06 , C07C2523/745 , C07C2523/75 , C07C2523/755
摘要: A zirconia-based catalyst is prepared by mulling a mixture of a zirconia source and a solvent, which mixture has a solids content of from 20% by weight to 60% by weight, and extruding the mixture.
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公开(公告)号:US07713906B2
公开(公告)日:2010-05-11
申请号:US10312099
申请日:2001-06-21
申请人: Paul Blankenstein , Mark Crocker , Carl Johan Gerrit Van Der Grift , Johannes Jacobus Maria Van Vlaanderen
发明人: Paul Blankenstein , Mark Crocker , Carl Johan Gerrit Van Der Grift , Johannes Jacobus Maria Van Vlaanderen
IPC分类号: B01J21/00 , C07D301/14 , C07D301/12 , C07D301/06
CPC分类号: C07D301/19 , B01J21/063 , B01J21/08 , B01J37/0009 , B01J37/0203 , B01J37/0238
摘要: A catalyst composition comprising titanium incorporated into a silica support, characterized in that the silica support is a shaped extrudate of silica powder. The catalyst composition is useful in the epoxidation of olefins into alkylene oxides using organic hydroperoxides. The composition can be prepared by extruding silica powder into an extrudate having a selected shape; calcining the extrudate; impregnating the extrudate with a titanium-containing impregnating agent; and drying and calcining the impregnated extrudate.
摘要翻译: 一种包含掺入二氧化硅载体中的钛的催化剂组合物,其特征在于二氧化硅载体是二氧化硅粉末的成形挤出物。 催化剂组合物可用于使用有机氢过氧化物将烯烃环氧化成烯化氧。 可以通过将二氧化硅粉末挤出到具有选定形状的挤出物中来制备组合物; 煅烧挤出物; 用含钛浸渍剂浸渍挤出物; 并干燥和煅烧浸渍的挤出物。
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公开(公告)号:US5447898A
公开(公告)日:1995-09-05
申请号:US306039
申请日:1994-09-14
IPC分类号: B01J21/06 , B01J23/75 , B01J32/00 , B01J35/02 , B01J35/10 , B01J37/00 , B01J37/03 , C01G25/02 , C04B35/624 , C07B61/00 , C07C1/04 , C07C53/10 , C07C53/122 , C10G2/00
CPC分类号: B01J23/75 , B01J21/066 , C01G25/02 , C04B35/624 , C07C53/10 , C07C53/122 , B01J35/1014 , B01J35/1038 , B01J35/1076 , B01J37/0009 , B01J37/036 , C01P2006/10 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/90
摘要: A process for the preparation of a zirconia precursor comprises contacting a solution of an acidic zirconium compound with a solution of a basic zirconium compound to form a gel. A shapable dough may be formed by rendering the zirconia precursor shapable, for example by drying the zirconia precursor or combining the zirconia precursor with a solid filler. The shapable dough may be shaped, for example by extrusion, to form a shaped zirconia precursor, which in turn may be dried and calcined to form shaped zirconia particles. The shapable dough may be prepared so as to comprise a source for a catalytically active component, in which case the shaped zirconia particles may be used directly as a catalyst. A source of a catalytically active component may be deposited on the shaped zirconia particles to yield a finished catalyst.
摘要翻译: 制备氧化锆前体的方法包括使酸性锆化合物的溶液与碱性锆化合物的溶液接触以形成凝胶。 可以通过使氧化锆前体可成形来形成可成形的面团,例如通过干燥氧化锆前体或将氧化锆前体与固体填料结合。 可成形面团可以例如通过挤出成型,以形成成形的氧化锆前体,其又可以被干燥和煅烧以形成成形的氧化锆颗粒。 可成型的面团可以制备成包含催化活性组分的源,在这种情况下,成形的氧化锆颗粒可以直接用作催化剂。 可以将催化活性组分的源沉积在成形的氧化锆颗粒上以产生成品催化剂。
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