Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance
Patent
1992-01-15
1993-11-09
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using disinfecting or sterilizing substance
422 4, 422 28, 422305, 423299, 424608, 426320, 426419, A61L 900, C01B 2510, A01N 5926, A23K 302
Patent
active
052600220
ABSTRACT:
Process and generator for generating a pesticidal gas mixture of phosphine gas and air for fumigating an enclosed environment, e.g. a grain silo, with phosphine. Air, moisture content adjusted by drying or humidifying, is passed through a porous bed of aluminum phosphide or magnesium phosphide, preferably in a throw-a-way cartridge. The resulting mixture of air and phosphine gas is passed into the space. Typical humidities (which determines the phosphine concentration) are 4 g/m.sup.3 for "flow through" conditions or 12 g/m.sup.3 for "one shot" conditions of fumigation. The cartridge is fitted directly in sealing relationship between inlet and outlet adaptors to serve as the gas generator vessel of the apparatus. The cartridge, completely filled with metal phosphide in powder or granulate form, has cylindrical gas-tight side walls, flexible and stretchable to allow for expansion of the metal phosphide during hydrolysis, and porous end walls.
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Muenzel Martin
Schellhaas Rainer
Detia Freyberg GmbH
Housel James C.
Kim Christopher Y.
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