Title:
SPHERICAL CATALYTIC POWDER COMPOSED OF NICKEL-ALUMINUM ALLOY, SPONGE NICKEL CATALYST COMPOSED THEREOF, AND THEIR MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2001192701
Kind Code:
A
Abstract:
To provide a spherical sponge nickel catalyst having uniform particle size distribution and excellent catalytic activity.
The sponge nickel catalyst is obtained by: (a) preparing a practically spherical alloy powder (where the relative area ratio of a compound phase from which aluminum is easily eluted in an aqueous solution of alkali is ≥70%) by the rapid solidification process from a molten alloy composed essentially of nickel and aluminum; (b) holding the alloy powder at 300-800°C to perform homogenizing treatment; and (c) putting the alloy powder into an aqueous solution of alkali to elute most of the aluminum.
Inventors:
KAGEYAMA KAGEHIRO
NAKAMURA HIDEKI
HIRAYAMA HIDEJI
SAKAMURA HIDEKI
SEKIMOTO MANABU
NAKAMURA HIDEKI
HIRAYAMA HIDEJI
SAKAMURA HIDEKI
SEKIMOTO MANABU
Application Number:
JP2000003002A
Publication Date:
July 17, 2001
Filing Date:
January 11, 2000
Export Citation:
Assignee:
HITACHI METALS LTD
NIKKO RIKA KK
NIKKO RIKA KK
International Classes:
B01J25/00; B01J25/02; B22F1/00; B22F9/08; C07B61/00; C07C29/156; C07C29/19; C07C31/26; C07C35/08; C07C209/36; C07C209/48; C07C209/72; C07C211/12; C07C211/35; C22C1/04; C22C19/03; C22C21/00; C22C30/02; C22F1/00; (IPC1-7): B22F1/00; B01J25/00; B01J25/02; B22F9/08; C07C29/156; C07C29/19; C07C31/26; C07C35/08; C07C209/36; C07C209/48; C07C209/72; C07C211/12; C07C211/35; C22C1/04; C22C19/03; C22C21/00; C22C30/02
Attorney, Agent or Firm:
Takaishi Tachibana
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