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    PRODUCING ALKALI METAL HYDROXIDE USING FLUORINATED COPOLYMER RESIN MEMBRANE
    3.
    发明专利
    PRODUCING ALKALI METAL HYDROXIDE USING FLUORINATED COPOLYMER RESIN MEMBRANE 未知

    公开(公告)号：CA1036975A

    公开(公告)日：1978-08-22

    申请号：CA154357

    申请日：1972-10-20

    Applicant: DIAMOND SHAMROCK CORP

    Inventor： DOTSON RONALD L ,  O'LEARY KEVIN J

    IPC: C08J5/22 ,  C25B1/46 ,  C25B9/19 ,  C25B13/08 ,  C25B1/16

    Abstract: Concentrated alkali metal hydroxy substantially free of alkali metal halide and other impurities is produced by the electrolysis of an alkali metal halide solution in an electrolytic cell having a dimensionally stable anode and a metalcathode separated by an electrically conductive stable selectively permeable hy-drated cation ion-exchange membrane film of a fluorinated copolymer having pendant sulfonic acid groups or derivatives of such groups. The membrane film is capable of use at high temperatures and under severely corrosive chemical conditions for extended periods without degradation.

    METHOD OF PRODUCING SOLS BY ELECTRODIALYSIS
    5.
    发明专利
    METHOD OF PRODUCING SOLS BY ELECTRODIALYSIS 未知

    公开(公告)号：CA1094503A

    公开(公告)日：1981-01-27

    申请号：CA290209

    申请日：1977-11-04

    Applicant: DIAMOND SHAMROCK CORP

    Inventor： SCHENKER BARRY A ,  SUGANO THOMAS T ,  STILLMAN NEIL W ,  O'LEARY KEVIN J

    IPC: B01D13/02

    Abstract: A method of producing a sol of an element selected from the group con-sisting of aluminum, antimony, chromium, manganese, molybdenum, tin and tungstencomprising electrodialytically transferring alkali metal cations of an aqueous solution of a water soluble alkali metal salt of the oxide of the said element from an anodecompartment of an electrolytic cell to a cathode compartment of the electrolytic cell while essentially preventing the migration of the metal oxide into the cathode compartment by positioning a cation permselective membrane between the anode compartment and the cathode compartment while carefully and continuously controlling the pH of the solution and removing the so-produced sol from the anode compartment of the electrolytic cell as well as a novel electrodialytic cell for sol formation.

    PRODUCTION OF ALKALI METAL CARBONATES IN A CELL HAVING A CARBOXYL MEMBRANE
    7.
    发明专利
    PRODUCTION OF ALKALI METAL CARBONATES IN A CELL HAVING A CARBOXYL MEMBRANE 未知

    公开(公告)号：CA1123780A

    公开(公告)日：1982-05-18

    申请号：CA307627

    申请日：1978-07-18

    Applicant: DIAMOND SHAMROCK CORP

    Inventor： O'LEARY KEVIN J ,  HORA CHARLES J ,  DERESPIRIS DONALD L

    IPC: C01D7/07 ,  C08J5/22 ,  C25B1/14 ,  C25B1/46 ,  C25B13/08

    Abstract: An alkali metal carbonate substantially free of alkali metal chloride is efficiently produced by electrolyzing an alkali metal chloride in an electrolytic cell having anolyte and catholyte compartments separated by a cation-exchange hydraulically impermeable membrane comprised of a thin film of a fluorinated polymer having pendant carboxylic acid or alkali metal carboxylate groups and a cathode spaced apart from the membrane; introducing carbon dioxide into the catholyte in a quantity sufficient to convert substantially all the alkali metal hydroxide therein to alkali metal carbonate; and utilizing a magnitude of electrolyzing current that reduces alkali metal chloride in the catholyte solids to less than 400 ppm.

    9.
    发明专利
    未知

    公开(公告)号：DE2712305A1

    公开(公告)日：1977-09-29

    申请号：DE2712305

    申请日：1977-03-21

    Applicant: DIAMOND SHAMROCK CORP

    Inventor： SCHENKER BARRY ALAN ,  SUGANO THOMAS TOMIO ,  STILLMAN NEIL WARREN ,  O'LEARY KEVIN J

    IPC: B01D61/42 ,  B01D61/44 ,  B01D61/50 ,  B01D61/54 ,  B01D63/00 ,  B01D65/08 ,  B01J13/00 ,  B01J19/08 ,  C01B33/141 ,  C01G30/00 ,  C25B1/00 ,  C25D21/16 ,  C25D21/18 ,  B01D13/02

    Abstract: A method of producing a sol of an element selected from the group consisting silicon, aluminum, antimony, chromium, manganese, molybdenum, tin and tungsten comprising electrodialytically transferring alkali metal cations of an aqueous solution of a water soluble alkali metal salt of the oxide of the said element from an anode compartment of an electrolytic cell to a cathode compartment of the electrolytic cell while essentially preventing the migration of the metal oxide into the cathode compartment by positioning a cation permselective membrane between the anode compartment and the cathode compartment while carefully and continuously controlling the pH of the solution and removing the so-produced sol from the anode compartment of the electrolytic cell as well as a novel electrodialytic cell for sol formation.

    COBALT TITANATE-MODIFIED SOLID SOLUTION
    10.
    发明专利
    COBALT TITANATE-MODIFIED SOLID SOLUTION 未知

    公开(公告)号：AU3773872A

    公开(公告)日：1973-07-12

    申请号：AU3773872

    申请日：1972-01-07

    Applicant: DIAMOND SHAMROCK CORP

    Inventor： KOLB JAMES M ,  O'LEARY KEVIN J

    IPC: C25B11/04 ,  C25B11/10 ,  B22F1/00 ,  B01K3/06 ,  C23C13/04

    Abstract: 1344241 Catalytic composition ELECTRONOR CORP 6 Jan 1972 [7 Jan 1971] 666/72 Heading B1E [Also in Division B3] A composition comprises a coherent mixture of cobalt titanate with a valve metal oxide/ precious metal oxide solid solution ("Valve metal" means Ti, Ta, Zr, or Nb; "precious metal" means Pt, Pd, Ru, Ir, Rh or Os). The composition may be used as such, as a coating on an electrical conductor, as a matrix dispersed in an organic binder such as a fluorocarbon resin, as a coating of such a matrix on substrate, or impregnated into porous graphite; it may form an electrode for electrolytic production of chlorine, or an electrode for a fuel cell, or it may be used for catalytic destruction of organic compounds, as in exhaust emission. In Examples, solutions containing Ti, Ru, and Co are applied to titanium mesh and heated.

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