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    SiO2-layered double hydroxide microspheres and methods of making them
    5.
    发明授权
    SiO2-layered double hydroxide microspheres and methods of making them 有权

    公开(公告)号：US10773246B2

    公开(公告)日：2020-09-15

    申请号：US15541655

    申请日：2016-01-06

    Applicant: SCG CHEMICALS CO., LTD.

    Inventor： Dermot O'Hare ,  Chunping Chen

    IPC: C08F10/02 ,  B01J27/236 ,  C09C1/30 ,  C01B33/18 ,  C01F7/00 ,  B01J21/08 ,  B01J35/00 ,  B01J35/08 ,  B01J35/10 ,  B01J37/02

    Abstract: A method of making silica-layered double hydroxide microspheres having the formula I: (i) wherein, Mz+ and M′y+ are two different charged metal cations; z=1 or 2; y=3 or 4; 0 0, q>0, Xn− is an anion; with n>0 a=z(1−x)+xy−2; and the AMO-solvent is an 100% aqueous miscible organic solvent; comprises the steps: (a) contacting silica microspheres and a metal ion containing solution containing metal ions Mz+ and M′y+ in the presence of a base and an anion solution; (b) collecting the product; and (c) optionally treating the product with AMO-solvent and recovering the solvent treated material to obtain the silica-layered double hydroxide microspheres. Preferably, M in the formula I is Li, Mg, Ni or Ca. Preferably, M′ in formula I is Al. The invention further provides silica-layered double hydroxide microspheres having the formula I. The silica-layered double hydroxide microspheres may be used as catalysts and/or catalyst supports. (SiO2)p@{[Mz+(1-x)M′y+x(OH)2]a+(Xn−)a/n.bH2O.c(AMO-solvent)}q  (I)

    INORGANIC POROUS FRAMEWORKLAYERED DOUBLE HYDROXIDE CORESHELL MATERIALS
    6.
    发明申请
    INORGANIC POROUS FRAMEWORKLAYERED DOUBLE HYDROXIDE CORESHELL MATERIALS 审中-公开

    公开(公告)号：US20190092644A1

    公开(公告)日：2019-03-28

    申请号：US15745375

    申请日：2016-07-15

    Applicant: SCG CHEMICALS CO., LTD.

    Inventor： Dermot O'Hare ,  Jean-Charles Buffet ,  Chunping Chen

    IPC: C01B39/02 ,  C01B39/54 ,  C01B39/20 ,  C01B39/26 ,  C01B39/14 ,  C01B39/46 ,  C01B37/02 ,  C01F7/00

    Abstract: Core @ layered double hydroxide shell materials of the invention have the formula: Tp@{[Mz+(1−x)M′xy+(OH)2]a+(Xn−)a/n·bH2O·c(AMO-solvent)}q wherein T is a solid, porous, inorganic oxide-containing framework material, Mz+ is a metal cation of charge z or a mixture of two or more metal cations each independently having the charge z; M′y+ is a metal cation of charge y or a mixture of two or more metal cations each independently having the charge y; z=1 or 2; y=3 or 4; 0 0; q>0; Xn− is an anion; with n>0; a=z(1−x)+xy−2; and AMO-solvent is an organic solvent which is completely miscible with water.Also disclosed are the products obtained by calcining the core @ layered double hydroxide shell materials which calcination products are core @ mixed metal oxide materials having the formula Tp@[{Mz+1−xM′y+xOw]pŸ] wherein T is a solid, porous, inorganic oxide-containing framework material, Mz+1−xM′y+xOw is a mixed metal oxide, or mixture of mixed metal oxides, which may be crystalline or non-crystalline, wherein Mz+ and M′y+ are different charged metal cations; Mz+ is a metal cation of charge z or a mixture of two or more metal cations each independently having the charge z; M′y+ is a metal cation of charge y or a mixture of two or more metal cations each independently having the charge y; z is 1 or 2; y is 3 or 4; 0 0; p>0 and q>0; Ÿ is the residue of an Xn− anion in which n>0.

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