LAMINATED POROUS MATERIAL Russian patent published in 1995 - IPC

FIELD: gasses filtering. SUBSTANCE: laminated porous material has: filtering base, made of highly porous cellular material, based on nickel with pores size of 0.3 2.0 mm; working layer of porous permeable material, formed from porous spherical material on base surface of 0.35 2.5 mm thick and intermediate layer of the materials of 0.3 0.5 from base cell size thick. In the case, as working layer material bronze spherical powder is used. Thickness of porous base "h" is calculated from ratio h d 120 110, with "d" based on nickel cellular material pores size. EFFECT: laminated porous material is used in gas filters. 2 cl, 1 dwg, 1 tbl