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    AMORPHOUS ZIRCONIUM-NICKEL ALLOY BASED HYDROGEN SEPARATION DISSOCIATION MEMBRANE, ITS PRODUCTION AND ACTIVATING METHOD THEREOF
    5.
    发明专利
    AMORPHOUS ZIRCONIUM-NICKEL ALLOY BASED HYDROGEN SEPARATION DISSOCIATION MEMBRANE, ITS PRODUCTION AND ACTIVATING METHOD THEREOF 失效

    公开(公告)号：JP2000256002A

    公开(公告)日：2000-09-19

    申请号：JP6232599

    申请日：1999-03-09

    Applicant: AGENCY IND SCIENCE TECHN ,  HARA SHIGEKI

    Inventor： HARA SHIGEKI ,  SAKAKI KEIJI ,  ITO NAOJI

    IPC: B01D71/02 ,  B01D53/22 ,  B22D11/06 ,  C01B3/50 ,  C01B3/56 ,  C22C1/00 ,  C22C19/00

    Abstract: PROBLEM TO BE SOLVED: To exhibit sufficient permeability only to hydrogen without using a noble metal such as Pd by using a membrane composed of an amorphous ZrNi alloy and an amorphous multi component alloy consisting essentially of Zr and Ni. SOLUTION: The hydrogen separation dissociation membrane is obtained preferably by blending a metal, heating in an inert gas atmosphere and cooling with a liquid. For example, 8.7 g Zr and 10.0 g Ni are melted with arc under 50 kPa argon atmosphere and the produced alloy sample is pulverized into about several mm, charged in a quartz nozzle and melted by high frequency induction heating under the 50 kPa argon atmosphere. The melted material is jetted to the periphery of a 200 mm diameter copper roll rotating at 2,000 rpm to be quenched and to obtain the hydrogen separation dissociation membrane having 5 mm width and 0.03 mm thickness and composed of the ribbon like amorphous Zr36Ni64. Both surfaces of the film are exposed for 1 hr under hydrogen atmosphere of 573 K and 0.3 MPa to be activated. In the amorphous Zr36Ni64 alloy, Ni is segregated on the surface in the hydrogen atmosphere to become as a catalyst for hydrogen dissociation to exhibit excellent hydrogen permeability.

    CONCENTRATION OF GAMMA-LINOLENIC ACID
    6.
    发明专利
    CONCENTRATION OF GAMMA-LINOLENIC ACID 失效

    公开(公告)号：JPS63216845A

    公开(公告)日：1988-09-09

    申请号：JP5098487

    申请日：1987-03-05

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： SAKAKI KEIJI ,  SAKO TAKESHI ,  SATO SHINJI ,  SUGATA TAKESHI ,  SUZUKI OSAMU ,  NAKAZAWA NOBUAKI ,  SHIRATA TOSHIKATSU ,  YOKOCHI TOSHIHIRO

    IPC: C07C67/56 ,  C07C69/58 ,  C11B3/10 ,  C11B7/00

    Abstract: PURPOSE:To obtain the titled compound inexpensively, in high yield and harmlessly to human body without requiring removal of organic solvent by vacuum distillation, by fractionating gamma-linolenic acid containing natural fats and oils by chromatography using a supercritical fluid as a mobile phase. CONSTITUTION:gamma-Linolenic acid-containing natural fats and oils are fractionated by chromatography using a supercritical fluid as a mobile phase and a gamma- linolenic acid-containing glyceride fraction is collected to give the aimed com pound. A hydrocarbon such as methane or ethane besides carbon dioxide and freon is used as the supercritical fluid. The supercritical condition is >=72.4kg/cm pressure and >=31.0 deg.C temperature in the case of carbon dioxide. A small amount of ethanol, butane, etc., having 40-120 deg.C boiling point is added to the supercritical fluid so that separating performance is improved. The partial collection condition by the supercritical chromatography is preferably 35-60 deg.C temperature and 90-250kg/cm pressure.

    AMORPHOUS HfNi ALLOY BASED FILM FOR SEPARATING AND DISSOCIATING HYDROGEN, ITS PRODUCTION AND METHOD OF ACTIVATING TREATMENT THEREFOR
    7.
    发明专利
    AMORPHOUS HfNi ALLOY BASED FILM FOR SEPARATING AND DISSOCIATING HYDROGEN, ITS PRODUCTION AND METHOD OF ACTIVATING TREATMENT THEREFOR 失效

    公开(公告)号：JP2000319733A

    公开(公告)日：2000-11-21

    申请号：JP12344899

    申请日：1999-04-30

    Applicant: AGENCY IND SCIENCE TECHN ,  HARA SHIGEKI

    Inventor： HARA SHIGEKI ,  SAKAKI KEIJI ,  ITO NAOJI

    IPC: B01D71/02 ,  B01D53/22 ,  B22D11/06 ,  C01B3/50 ,  C01B3/56 ,  C22C1/00 ,  C22C45/04 ,  C22F1/00 ,  C22F1/10

    Abstract: PROBLEM TO BE SOLVED: To realize high penetrability only to hydrogen, sufficient strength even in a hydrogen atmosphere and structural stability and substantially unnecessitate the use of noble metals such as Pd by composing the film of an amorphous HfNi alloy. SOLUTION: Prescribed amounts of Hf and Ni are subjected to arc melting in an Ar atmosphere to produce an alloy, which is pulverized to about several mm, is charged to a quartz nozzle and is melted in an Ar atmosphere by high- frequency induction heating. Then, this alloy is jetted to the periphery of a rotating copper roll and is rapidly cooled to produce ribbony amorphous Hf36Ni64. This ribbony one is exposed to gaseous pure hydrogen or a gaseous mixture of Ar-hydrogen. This activating treatment is executed for about 1 hr in the gaseous mixture of Ar-26% hydrogen, by which the hydrogen penetrating rate increases, e.g. from 0.02×10-3 mol/m2.sec to 0.08×10-3 mol/m2.sec. Furthermore, in the case activating treatment is executed for one hr by using pure hydrogen as well, the hydrogen penetrating rate is improved to 0.22×10-3 mol/m2.sec.

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