Composite membranes

Details Composite membranes Composite membranes

1989-05-22

1990-06-19

Spear, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050025, 21050026, B01D 1300

Patent

active

049351397

ABSTRACT:
A composite membrane comprises a porous metal support and at least one porous inorganic film of sintered non-metallic particles carried by the support and overlying a surface thereof. The film is in longitudinal compression at ambient temperature, such that any cracks tend not to propagate. The composite membranes are mechanically robust and chemically inert and useful as filters e.g. in the food industry. They may be made by applying a sol or suspension of particles to form a layer on the porous metal support and heating the coated support to partly sinter the particles of the layer.

REFERENCES:
patent: 4711719 (1987-12-01), Leenaars et al.
patent: 4762619 (1988-08-01), Gaddis et al.

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