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    PRODUCTION OF TITANIUM OXIDE COLLOID
    1.
    发明专利
    PRODUCTION OF TITANIUM OXIDE COLLOID 失效

    公开(公告)号：JPH06298533A

    公开(公告)日：1994-10-25

    申请号：JP10995393

    申请日：1993-04-13

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： HORIUCHI TATSURO ,  SUGIYAMA TOYOHIKO ,  TAKASHIMA HIROO ,  YASUE KAZUO ,  USHIKI KENICHI

    IPC: B01J13/00 ,  C01G23/04 ,  C01G23/053

    Abstract: PURPOSE:To easily control the size of colloid particles and improve the quantum containment effect and transparency by diluting a titanium alkoxide with an alcohol and adding the solution to a strongly acidic water little by little. CONSTITUTION:A titanium alkoxide such as titanium isopropoxide is diluted with 5-50 times mol of an alcohol such as ethanol to obtain a dilute solution. The particle size of titanium oxide colloid can be controlled as necessary by varying the dilution degree or the concentration in the above process. The diluted solution is dropped into a strongly acidic water of pH

    POROUS FILTER
    3.
    发明专利
    POROUS FILTER 失效

    公开(公告)号：JP2000126524A

    公开(公告)日：2000-05-09

    申请号：JP32291498

    申请日：1998-10-27

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： USHIKI KENICHI ,  SONODA TSUTOMU ,  KAMIYA AKIRA ,  TOTSU AKIRA

    IPC: B01D39/00 ,  B01D39/14

    Abstract: PROBLEM TO BE SOLVED: To enable the clogged part of a filter from being automatically peeled and removed by making the surface layer of one of the faces of a filter laminated and porous with a constituent non-uniformly filled layer formed of a flocculating fine powder molded by compression. SOLUTION: When a laminated porous matter for a laminated porous filter 1 is manufactured, first a combustible organic powder is dispersed in a flocculating fine powder, and these powders are compression-molded. After this molding process, the flocculating fine powder packed non-uniformly in a laminar fashion is sintered. Thus pores are formed by burning the combustible organic powder to disappear and the laminated porous matter is manufactured. When suspended particles 3 are filtered from a fluid by the filter 1, the fluid containing the suspended particles 3 is made to pass through the filter 1 for filtration. Consequently a clean fluid 4 is obtained and the separated suspended particles 3 become a laminated particle layer 2. When the pressure loss of the filter 1 becomes gradually large by the laminated particle layer 2, the clean fluid 4 is made to flow to the suspended particle 3 side through the filter 1, and the laminated particle layer 2 is separated from the filter 1.

    NON-DIAPHRAGM SOLID ELECTROLYTE TYPE FUEL CELL FOR CO-GENERATION
    4.
    发明专利
    NON-DIAPHRAGM SOLID ELECTROLYTE TYPE FUEL CELL FOR CO-GENERATION 失效

    公开(公告)号：JPH08264195A

    公开(公告)日：1996-10-11

    申请号：JP9147795

    申请日：1995-03-23

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： HIBINO TAKASHI ,  USHIKI KENICHI ,  KUWABARA YOSHITAKA

    IPC: H01M8/02 ,  H01M8/12 ,  H01M8/24

    Abstract: PURPOSE: To provide voltage in homogenous gas so as to take out current stably by printing two electrodes, in each of which catalytic ability in partial oxidation reaction of hydrocarbon is different from each other, on the same surface of an electrolyte sheet and introducing mixture gas of lower hydrocarbon and air. CONSTITUTION: On the surface of a solid electrolyte sheet consisting of stabilized zirconia or perovskite type oxide, a Pd.Ag.Ni or Rh electrode and an electrode 3, which is made of Ag and the like and provided with no catalytic ability, are printed. A mixture gas of lower hydrocarbon such as methane and air is introduced, and even in homogeneous gas, voltage can be obtained, and electric current can be taken out stably. Under an operating condition of heating at a temperature of 700-1000 deg.C, a mixture gas of the optimum composition ratio for partial oxidation between the lower hydrocarbon and oxygen is introduced, and electric power is taken out, while hydrogen and carbon monoxide are collected from a battery outlet. In this way, the thinning of electrolyte film 16 is dispensed with, and environmental preservation based on low exhaust of carbon dioxide and chemical cogeneration based on the generation of hydrogen and carbon monoxide can be accomplished at a low cost.

    SOLID-GAS CONTACT METHOD BY PARTICLE INTERNAL CIRCULATION
    5.
    发明专利
    SOLID-GAS CONTACT METHOD BY PARTICLE INTERNAL CIRCULATION 失效

    公开(公告)号：JPH04114729A

    公开(公告)日：1992-04-15

    申请号：JP23133490

    申请日：1990-09-01

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： USHIKI KENICHI

    IPC: B01J8/24 ,  B01D45/08 ,  B01J8/38

    Abstract: PURPOSE:To simplify the operation of an apparatus by supplying solid particles in the concn. necessary for the motion thereof as a particle bed or lump with the conversion of the direction of an air stream in the upper part of a tower. CONSTITUTION:In a solid-gas contact method due to particle internal circulation wherein solid particles 10 are dispersed in the air stream rising in a tower 1 to be brought into contact with the air stream and solid-gas separation is carried out by the conversion of the direction of the air stream in the upper part of the tower 1, at first, the air stream in the tower 1 is raised at speed higher than the sedimentation speed of the solid particles 10. The solid particles 10 are supplied in the concn. necessary for the motion thereof as a particle bed 11 or particle lumps 12 with the conversion of the direction of the air stream in the upper part of the tower 1. By allowing the solid particles to fall through the rising air stream in the tower 1 at the upper part of the tower 1 becoming the particle bed 11 or particle lumps 12, the rising solid particles 10 are returned to the lower part of the tower 1 to be circulated within the tower 1.

    POWDER SURFACE REFORMING DEVICE BY CHEMICAL VAPOR DEPOSITION METHOD UTILIZING ELECTRIC DISCHARGE REACTION
    6.
    发明专利
    POWDER SURFACE REFORMING DEVICE BY CHEMICAL VAPOR DEPOSITION METHOD UTILIZING ELECTRIC DISCHARGE REACTION 失效

    公开(公告)号：JPH0835070A

    公开(公告)日：1996-02-06

    申请号：JP19208594

    申请日：1994-07-22

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： USHIKI KENICHI ,  SATO TERUYUKI

    IPC: B01J19/08 ,  C23C16/442 ,  C23C16/50

    Abstract: PURPOSE:To uniformly reform particle surfaces at a low cost by adopting a chemical vapor deposition method by low-energy plasma at the time of subjecting the surfaces of powder particles to a reforming treatment by the films formed of the products obtd. by an electric discharge reaction of gaseous raw materials. CONSTITUTION:The powder raw material to be reformed is fed from an upper feed port 18 into a blind vessel 8. Simultaneously, a gaseous mixture composed of vapor of a metal alkoxide, etc., reactive gases, such as hydrogen and oxygen, and carrier gas, such as Ar, is supplied into this vessel 8 from a gaseous raw material introducing port 1 of a discharge reactor section 9. Voltage is impressed between the anode 2 and cathode 3 of the discharge reactor section 9 by a DC power source 13 to generate an electric discharge. Molecular films and particle films are formed on the surfaces of the powder particle 5 by the reaction formed gases contg. the solid moleculars and clusters, etc., of metal oxides from the gaseous raw materials by the discharge reaction, by which the powder particles are reformed. In such a case, the powder raw material passes a circulating flow section 21 consisting of an ascending passage 22 and descending passage 23 of the gaseous raw materials formed by a partition wall 7 in the blind vessel 8 and, therefore, the uniform surface.treatment is effectively executed as the materials always come into contact with fresh reatant gases formed by plasma discharge.

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