Ceramic filter

Details Ceramic filter Ceramic filter

1990-01-24

1991-04-30

Dawson, Robert A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21049701, 2105101, 55523, B01D 3916, C04B 3700

Patent

active

050116037

ABSTRACT:
A ceramic filter comprising a support layer having an inner surface for forming at least one filter passage, and a filter layer coated on the inner surface of the support layer and having an inner surface functioning as a filter surface, the filter layer having a thickness of 10 to 40 microns from the filter surface, a cumulative intrusion volume of all pores in the filter layer being 0.2 cc/g or less, a cumulative intrusion volume of pores having pore diameters of 0.1 to 3.0 microns being 0.1 cc/g or more, and a cumulative intrusion volume (H) of the pores ranging within a pore diameter width (W) of 0.1 microns around a center pore diameter (PD) which is a pore diameter in case of a half of a cumulative intrusion volume (IV) at a pore diameter of 0.1 microns being 50% or more of a cumulative intrusion volume of all pores in the filter layer.

REFERENCES:
patent: 4264346 (1981-04-01), Mann
patent: 4278544 (1981-07-01), Takashima
patent: 4528099 (1985-07-01), Rieger et al.
patent: 4562021 (1985-12-01), Alary et al.
patent: 4645596 (1987-02-01), Kuwajima

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