SILICA-COATED METAL OXIDE SOLS HAVING VARIABLE METAL OXIDE TO SILICA RATION
    1.
    发明公开
    SILICA-COATED METAL OXIDE SOLS HAVING VARIABLE METAL OXIDE TO SILICA RATION 审中-公开
    二氧化硅涂布的金属氧化物VARIABLE METALLXOXID /硅石的比率

    公开(公告)号:EP2074061A4

    公开(公告)日:2012-10-10

    申请号:EP07868350

    申请日:2007-10-02

    申请人: NALCO CO

    发明人: ORTIZ C YOLANDA

    IPC分类号: C01B33/149

    摘要: This invention provides metal-rich siliceous compositions and methods of preparing such compositions. The compositions have comprehensibly variable and controllable metal oxide to silica ratios, surface morphology, porosity, and surface area. The method includes preparing a silicic acid, a metal oxide dispersion, and a basic heel solution. The silicic acid and metal oxide dispersion are mixed to create a blend and the blend is controllably added to the basic heel solution to form a siliceous material including colloidal silica-coated metal oxide particles. Factors such as type of silicic acid, concentration and type of metal oxide, and reaction conditions determine properties, including surface morphology and porosity, of the siliceous material

    SILICA-COATED METAL OXIDE SOLS HAVING VARIABLE METAL OXIDE TO SILICA RATION
    9.
    发明公开
    SILICA-COATED METAL OXIDE SOLS HAVING VARIABLE METAL OXIDE TO SILICA RATION 审中-公开
    二氧化硅涂布的金属氧化物VARIABLE METALLXOXID /硅石的比率

    公开(公告)号:EP2074061A2

    公开(公告)日:2009-07-01

    申请号:EP07868350.5

    申请日:2007-10-02

    申请人: Nalco Company

    发明人: ORTIZ, C. Yolanda

    IPC分类号: C01B33/149

    摘要: This invention provides metal-rich siliceous compositions and methods of preparing such compositions. The compositions have comprehensibly variable and controllable metal oxide to silica ratios, surface morphology, porosity, and surface area. The method includes preparing a silicic acid, a metal oxide dispersion, and a basic heel solution. The silicic acid and metal oxide dispersion are mixed to create a blend and the blend is controllably added to the basic heel solution to form a siliceous material including colloidal silica-coated metal oxide particles. Factors such as type of silicic acid, concentration and type of metal oxide, and reaction conditions determine properties, including surface morphology and porosity, of the siliceous material.

    HIGH PH DISPERSIBLE NONO-ALUMINAS
    10.
    发明公开
    HIGH PH DISPERSIBLE NONO-ALUMINAS 审中-公开
    具有高PH分散纳米Al

    公开(公告)号:EP1742876A2

    公开(公告)日:2007-01-17

    申请号:EP05780035.1

    申请日:2005-04-21

    IPC分类号: C01F7/02

    摘要: A process for producing nano sized boehmite aluminas which are stable at alkaline pH values wherein an aqueous medium of a peptized boehmite alumina is treated with a water dispersible polycarboxylic acid polymer and optionally with an organic water dispersible base having a molecular weight ranging from 500 to 3000 and having no more than three basic groupings to produce a treated boehmite alumina which forms a stable sol at a pH of greater than 6, the treated boehmite alumina having a dispersed particle size of less than 500 nm in the sol.