公开(公告)号：JP2000143245A

公开(公告)日：2000-05-23

申请号：JP32084098

申请日：1998-11-11

Applicant: AGENCY IND SCIENCE TECHN ,  PETROLEUM ENERGY CENTER FOUND

Inventor： MIKI YASUAKI ,  SUGIMOTO GIICHI ,  SHIMADA HIROMICHI ,  MIZUKAMI FUJIO ,  OSHIMA SATORU ,  KURIKI YASUNORI ,  YUMURA MORIO ,  MATSUBAYASHI NOBUYUKI ,  SATO KOICHI ,  ARAKI YASUHIRO ,  HONNA KOSAKU

IPC: C01G41/00 ,  B01J27/047 ,  C01G53/00 ,  C10G45/08 ,  C10G47/02 ,  C10G49/04

Abstract: PROBLEM TO BE SOLVED: To provide a production process for various metal sulfides each used as a hydrogenation catalyst having capability of effecting hydrogenation/ring-opening of an aromatic ring and also to provide a hydrogenation catalyst consisting of such a metal sulfide. SOLUTION: This production process for tungsten - chromium - zinc multiple sulfide comprises: adding an ammonium thiotangustate aqueous solution to zinc hydroxychromate hydrate in an amount sufficient to provide a W/(Zn+Cr) atomic ratio of 0.003-0.05; mixing and agitating them, to evaporate water in the resulting mixture and to obtain a solid material; and then, subjecting the solid material to reductive decomposition. The production process for this nickel - tungsten - chromium - zinc multiple sulfide hydrogenation catalyst comprises: adding an ammonium thiotangustate aqueous solution to zinc hydroxychromate hydrate in an amount sufficient to provide a W/(Zn+Cr) atomic ratio of 0.003-0.05 to obtain a mixture; further adding a nickel salt aqueous solution to the mixture in an amount sufficient to provide an Ni/W atomic ratio of

公开(公告)号：JP2000086217A

公开(公告)日：2000-03-28

申请号：JP26731798

申请日：1998-09-05

Applicant: AGENCY IND SCIENCE TECHN ,  OSHIMA SATORU ,  YUMURA MORIO ,  UCHIDA KUNIO ,  IGASAKI FUMIKAZU ,  KURIKI YASUNORI

Inventor： OSHIMA SATORU ,  YUMURA MORIO ,  UCHIDA KUNIO ,  IGASAKI FUMIKAZU ,  KURIKI YASUNORI

IPC: C01B31/02 ,  B01J23/28

Abstract: PROBLEM TO BE SOLVED: To attain a high yield and to enable continuous operation and mass production by decomposing a hydrocarbon at a high temperature on a catalyst comprising metal molybdenum or a metal molybdenum-containing material to deposit carbon nanotubes on the catalyst. SOLUTION: A catalyst comprising metal molybdenum or a metal molybdenum-containing material, preferably a catalyst obtained by supporting metal molybdenum on an inorganic support is put in a reactor and a hydrocarbon is decomposed in the reactor at 800-1,200 deg.C to deposit carbon nanotubes on the catalyst. The catalyst with the deposited carbon nanotubes is discharged from the reactor. The carbon nanotubes are continuously produced by combining the depositing and discharging steps. In other way, a hydrocarbon oil containing the catalyst is spouted into a reactor kept at 800-1,200 deg.C and the hydrocarbon is decomposed to form carbon nanotubes.

公开(公告)号：JPH07237913A

公开(公告)日：1995-09-12

申请号：JP5329094

申请日：1994-02-25

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OSHIMA SATORU ,  YUMURA MORIO ,  UCHIDA KUNIO ,  KURIKI YASUNORI ,  IGASAKI FUMIKAZU

IPC: B01J19/08 ,  B01J19/14 ,  B01J19/24 ,  C01B31/02

Abstract: PURPOSE:To safely produce and recover a fullerene without touching with a human body. CONSTITUTION:A method for producing fullerene comprises using a carbonaceous material and a heat-resistant conductive material as an anode 3 and a cathode 2, respectively, in a container 1, feeding a required electric power between both the electrodes 2,3 from an electric power-feeding source 4 for discharging an arc, and subsequently guiding the produced soot containing the fullerene into a fullerene recovery closed container receiving a solvent for dissolving the fullerene through a conduit 10 in a state stirred with an inert gas discharged from valves 9.