Alveolar ceramic filters for high melting metals

Details Alveolar ceramic filters for high melting metals Alveolar ceramic filters for high melting metals

1988-11-10

1990-05-01

Jones, W. Gary

Liquid purification or separation

Processes

Separating

2105101, 75407, 266227, 55523, 501107, C04B 3510

Patent

active

049216163

ABSTRACT:
Shaped, porous filter members having a size and shape adapted for the filtration of liquid metals, e.g., the configuration of a honeycomb, are comprised of a porous alveolar ceramic material including from 10 to 20% SiO.sub.2, from 50 to 60% Al.sub.2 O.sub.3 and from 20 to 40% ZrO.sub.2, each percentage being by weight with respect to the total weight of said oxides, said Al.sub.2 O.sub.3 and SiO.sub.2 being present in the form of mullite, 3Al.sub.2 O.sub.3 /2SiO.sub.2, and the combined weight of the zirconia and mullite comprising at least 90% by weight of said alveolar ceramic material.

REFERENCES:
patent: 4265659 (1981-05-01), Blome
patent: 4364760 (1982-12-01), Higuchi et al.
patent: 4416676 (1983-11-01), Montierth

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