Patent ID: 6068681
Filing Date: 2000-05-30
Classification: A61L

Abstract:
Process for treating the volatile unpleasant odors present in an atmosphere or conveyed by a stream of gas, in which process the atmosphere or the stream of gas is treated by filtration with a filter composed of a layer of adsorbent material of determined thickness impregnated with an aqueous solution, with, per 100 parts by weight of material, about 5 to about 20 parts by weight of said aqueous solution, characterized in that the material is natural zeolite comprising at least one material chosen from clinoptilotite, mordenite, chabazite, erionite, phillipsite, heulandite and analcime,said aqueous solution comprising, per 1000 parts by weight of water, between about 1 part and about 20 parts by weight of a composite mixture comprising, per one part of ammonium ions or equivalent, one part of at least one composition of perfuming and/or deodorizing nature.