Title:
MONOLITHIC FORM CERAMIC POROUS SUPPORT
Document Type and Number:
Japanese Patent JP3469798
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To form a dense inorganic separating film excellent in film formability and having small defects by which gases are efficiently separated by adjusting the ratio of an average internal diameter of channels to the external diameter in the radial direction of each channel of a support and an average pore diameter of the support to each specific range.
SOLUTION: The support is, e.g. a pillar-shaped body such as a cylinder and has a plurality of channels which are nearly parallel to the longitudinal direction of the pillar-shaped body. The ratio of an average internal diameter of the channels to the external diameter in the radial direction of the channels of a support is set to the range of 0.8-3: 20-60. When the support has a elliptical form, the diameter in the radial direction of channels of the support is expressed by an average diameter. The suitable average pore diameter of the support is in the range of 5-30 μm. The rate of channels, which have an opening at each terminal face of the support and don't connect each other, is greater than 80. The suitable external diameter of the support is in the range of 30-50 mm, and the suitable internal diameters of the channels are in the range of 0.9-2.2 mm.
Inventors:
Shigekazu Mase
Hisatomi Taguchi
Seiji Yamada
Hisatomi Taguchi
Seiji Yamada
Application Number:
JP37330198A
Publication Date:
November 25, 2003
Filing Date:
December 28, 1998
Export Citation:
Assignee:
Noritake Company Limited
International Classes:
B01D53/22; B01D69/04; B01D69/12; B01D71/02; B28B3/20; C04B38/00; (IPC1-7): C04B38/00; B01D53/22; B01D69/04; B01D69/12; B01D71/02
Domestic Patent References:
| JP497969A | ||||
| JP5200259A |
Attorney, Agent or Firm:
Asamichi Kato
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