Abstract: The stratal filter material includes a base layer made from highly porous honeycomb nickel-based material with pore sizes of 0.3 to 2.0 mm and a thickness selected from the ratio h:d=20 to 110, where:h is the layer thickness, mm;d is the porous nickel pore size, mm;a working layer made from porous permeable material 0.35 to 2.5 mm thick, formed on the surface of base layer, and an intermediate layer of a combination of the base and working layer materials formed therebetween with a thickness of 0.3 d to 5 d.
Type:
Grant
Filed:
December 3, 1993
Date of Patent:
November 21, 1995
Assignee:
Intot, Ltd.
Inventors:
Lev K. Pevzner, Mikhail Y. Lakhovskiy, Boris S. Oborin