Cordierite ceramic filter

Details Cordierite ceramic filter Cordierite ceramic filter

1994-12-12

1996-08-27

Woo, Jay H.

Gas separation

Specific media material

Ceramic or sintered

55DIG30, 60311, 2105101, B01D 3920, C04B 3564

Patent

active

055497250

ABSTRACT:
A cordierite ceramic filter is formed by mixing cordierite powders having a porosity of more than 30% as aggregate with raw materials for cordierite generation, poring agents, forming agents and solvents to obtain a ceramic batch, extruding the ceramic batch into a honeycomb shape to obtain a formed body, and firing the formed body. The cordierite ceramic filter has a mean pore size in a range of aggregate mean size.times.0.15.+-.5 .mu.m, has a porosity of more than 30% and has a compressive strength more than 100 kgf/cm.sup.2 in a direction parallel to a flow passage. The cordierite ceramic filter has an excellent filter regeneration function, has a high mechanical strength and is light and compact.

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patent: 4976760 (1990-12-01), Helferich et al.
patent: 5069697 (1991-12-01), Hamaguchi et al.
patent: 5080953 (1992-01-01), Horikawa et al.

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