A ceramic filter for semi-ultrafiltration

Details A ceramic filter for semi-ultrafiltration A ceramic filter for semi-ultrafiltration

1985-12-23

1989-10-17

Jones, W. Gary

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21049701, 21050021, 21050027, 21050036, 21050042, 210506, 2105101, B01D 1300

Patent

active

048745162

ABSTRACT:
This invention relates to a filter which includes a substrate of a ceramic porous material of a high strength, which serves as a support, covered with a microporous membrane of a polymer, typically a fluorocarbon polymer, partly permeating the surface layer of the substrate and acting as a filter for fine particles. The filter exhibits excellent corrosion-resistance, durableness and heat-resistance and is used for semi-ultrafiltration such as filtration for sterilization, purification of crystals and the like.

REFERENCES:
patent: 3508994 (1970-04-01), Nyrop
patent: 3629087 (1971-12-01), Rubin
patent: 3657402 (1972-04-01), Stana et al.
patent: 3878104 (1975-04-01), Guerrero
patent: 3914358 (1975-10-01), Dixon et al.
patent: 4077885 (1978-03-01), van Heuven et al.
patent: 4214020 (1980-07-01), Ward et al.
patent: 4230463 (1980-10-01), Henis et al.
patent: 4346126 (1982-08-01), Kutowy et al.
patent: 4594079 (1986-06-01), Yamamoto et al.

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