초록 ▼

Odors attributable to organic molecular species are eliminated to levels below their olfactory detection level threshold by contact of the odor-producing species with a crystalline siliceous molecular sieve material having at least about 90 percent of its tetrahedral oxide units as SiO2 tetrahedra,

Odors attributable to organic molecular species are eliminated to levels below their olfactory detection level threshold by contact of the odor-producing species with a crystalline siliceous molecular sieve material having at least about 90 percent of its tetrahedral oxide units as SiO2 tetrahedra, having pore apertures nominally at least 5.5 A in diameter, from which the original water of hydration has been substantially removed, having a capacity for adsorbed water of not greater than 10 weight percent when measured at 25°C. at a water vapor pressure (p/po) of 4.6 torr.

대표청구항 ▼

Process for removing odors from an environment attributable to an organic molecular species which comprises contacting and adsorbing at a temperature of from -25°C. to 100°C. the molecules of the organic molecular species with a crystalline siliceous molecular sieve adsorbent which has been at least

Process for removing odors from an environment attributable to an organic molecular species which comprises contacting and adsorbing at a temperature of from -25°C. to 100°C. the molecules of the organic molecular species with a crystalline siliceous molecular sieve adsorbent which has been at least partially activated, in which at least about 90 percent of the framework tetrahedral oxide units are SiO2 tetrahedra, which has pore diameters of at least 5.5 Angstroms and has a capacity for adsorbed water of not greater than 10 weight percent when measured at 25°C. and at a water vapor pressure of 4.6 torr, said contacting and adsorbing of the organic molecular species being to such a degree that residual concentrations thereof over the adsorbent are below the detection threshold of the human sense of smell.