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    • 41. 发明专利
    • PRODUCTION OF THIN CARBON PLATE FOR FUEL CELL SEPARATOR
    • JPS62160661A
    • 1987-07-16
    • JP129386
    • 1986-01-09
    • KAWASAKI STEEL CO
    • TAKANO SHIGERUKANESHIRO TSUNEO
    • H01M8/02
    • PURPOSE:To obtain thin carbon plates for separator excellent in gas impermeability, electric conductivity and mechanical strength without generating cracking and the like by combining phenol fiber, obtained such that novolak type phenol resin is spun and subjected to hardening process, with thermohardening resin and graphite powder. CONSTITUTION:Phenol fiber, obtained such that novolak type phenol resin is spun and subjected to hardening process, is combined with thermohardening resin and graphite powder. It is used as said phenol resin that is obtained by fusing and spinning phenol resin composed of phenol and formaldehyde by using acid catalyst, and subjecting same to hardening process at a temperature of 100 deg.C-150 deg.C. In case of felt or cloth type of said phenol resin, it is laminated and formed into a plate shape to have a desired thickness after being dipped in a solution where graphite powder and phenol resin powder are mixed, and dried. While in case of fiber type, it is formed into a plate shape after being mixed with phenol resin powder evenly. Next, said plate shape molding is completely hardened and thereafter heated to 1,000 deg.C to be carbonized so that thin carbon plates 1, 1' for fuel cell separator may be obtained.
    • 42. 发明专利
    • PRODUCTION OF HYDROGENATION-TREATED PITCH
    • JPS61162585A
    • 1986-07-23
    • JP287985
    • 1985-01-11
    • KAWASAKI STEEL CO
    • HIROSE SHIROTSUBOTA HIDEKAZUKANESHIRO TSUNEONAKAI SUSUMU
    • D01F9/15C10C3/04D01F9/14D01F9/145D01F9/155
    • PURPOSE:To obtain the titled pitch suitable for carbonaceous ceramics, etc. without supplying expensive hydrogen-donating solvent from the outside of the system, by gas-liquid separation of a mixture of solvent ad hydrogenated pitch after heat treatment followed by hydrogenation of the solvent to retain its hydrogen-donating ability. CONSTITUTION:Feedstock pitch 1 and hydrogen-donating solvent 2 are fed to mixing tank 3, the resultant pitch-solvent mixture being conveyed to heating furnace 7 in a pressurized state. Before the introduction into this furnace 7, hydrogen 5 for use in reaction is incorporated in said mixture. The resulting mixture is heated in the furnace 7 followed by feeding to pitch hydrogenation column 8 to perform hydrogenation. The resultant reaction mixture comprising hydrogenated pitch, the solvent and a gas such as hydrogen is then introduced into high-pressure gas-liquid separator 9 to carry out gas-liquid separation. A gas phase from the top of the separator 9 is fed to solvent hydrogenation column 11 along with incorporation of hydrogen 6 for use in reaction to convert the solvent into a modified one with enhanced hydrogenation-donating ability. Gaseous phase 16 separated in the separator 9 is fed to low-pressure gas-liquid separator 17 and the objective hydrogenation-treated pitch being taken out through the bottom whereas solvent 18 being separated through the top.
    • 44. 发明专利
    • PRODUCTION OF BLAST FURNACE COKE
    • JPS5681386A
    • 1981-07-03
    • JP15673579
    • 1979-12-05
    • KAWASAKI STEEL CO
    • KANESHIRO TSUNEOMIYAGAWA TSUGIOTANIHARA HIDETAROU
    • C10B57/04C10B57/06C10B57/08
    • PURPOSE:To obtain blast furnace coke in which the reactivity of the coke produced is easily controlled, by a method wherein regenerated coal in which the H/C mole ratio is adjusted to a value corresponding to the volatile matter of low-grade coal, is blended with the low-grade coal. CONSTITUTION:In the production of blast furnace coke from low-grade coal by blending regenerated coal with the low-grade coal, regenerated coal in which the H/C mole ratio is adjusted to a value corresponding to the volatile matter of the low-grade coal, is used. The reactivity of the coke is greatly varied depending on the H/C mole ratio of each component of the regenerated coal. Even when low- grade coal having a high content of the volatile matter is used as the raw material, the coke having low reactivity can be obtd. by blending regenerated coal having a small H/C mole ratio, or the component of the regenerated coal or a mixt. thereof with the low-grade coal. In order to classify the regenerated coal into components having different H/C mole ratio, a method such as a solvent separation method, a centrifugation method, a filtration method or a gravity settling method can be used.
    • 45. 发明专利
    • PRODUCTION OF METALLURGICAL COKE FROM GENERALLGRADE COAL
    • JPS5556185A
    • 1980-04-24
    • JP13024078
    • 1978-10-23
    • KAWASAKI STEEL CO
    • KANESHIRO TSUNEOMUROKI YOSHIO
    • C10B57/04
    • PURPOSE:A modified coal that has been made by heating general-grade coal and a binder over the softening point of the binder to fuse them, a binder are incorporated to a low-fluidity coal in a specific proportion, thus producing said metallurigical coke with high strength. CONSTITUTION:Previously, a general-grade coal and a binder are heated together over the softening point of the binder to fuse them and prepare a modified coal. Then, the resulting modified coal and a binder are incorporated to a low-fluidity coal, thus producing said metallurgical coal. At this time, the mixing ratio of the binder to the low-fluidity coal is given as alpha, when the strength of the coke becomes maximum; the mixing ratio of the binder to the general coal is given as beta, when the strength of the coke becomes maximum; the contents of the low-fluidity coal, the modified coal and the binder are given as X1, X2, and X3 respectively and the amount of the binder and modified coal to be added are determined according to formula I and II and the mixing ratio of the binder in the modified coal and the general-grade coal is regulated by formula III, thus producing said metallurgical coke with high strength.