Asbestos-free filtering layer

Details Asbestos-free filtering layer Asbestos-free filtering layer

1977-09-27

1979-04-17

Cuchlinski, Jr., William A.

Liquid purification or separation

Filter

Material

B01D 1500

Patent

active

041499751

ABSTRACT:
Equal or better adsorbency at lower cost is obtained with a sheet filter of the type having a filtering layer comprised of a supporting layer formed of at least one fibrous material with at least one adsorbent material evenly distributed within the supporting layer, when the adsorbent material consists essentially of .gamma.-aluminum oxide instead of asbestos. A supplementary organic adsorbent material can be incorporated together with an inorganic filler such as kaolin or kieselguhr.

REFERENCES:
patent: 2655552 (1953-10-01), Fuller et al.
patent: 3252270 (1966-05-01), Pall et al.
patent: 3420709 (1969-01-01), Barrett, Jr. et al.
patent: 3853789 (1974-12-01), Warthen et al.

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