Method of fumigating agricultural products using hydrogen phosph

Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance

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422 30, 422 32, 43125, 426320, 426419, A23L 334

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048122912

ABSTRACT:
This invention relates to a method of fumigating agricultural products in storage or transportation facilities for controlling pests by means of hydrogen phosphide which is then bound and/or decomposed to a substantial extent; according to the invention, a fumigating composition releasing hydrogen phosphide is placed in a manner known per se among products stored in conventional storage facilities, whereupon the stored products are covered with a flexible film, foil or sheet to isolate them from the surrounding storage space, and the hydrogen phosphide diffusing from the gas containing space above and among the stored products during or after fumigation is bound by adsorption, physical or chemical absorption and/or decomposed by chemical or physical means. The invention also relates to a specific solid catalyst suitable for the decomposition of hydrogen phosphide.

REFERENCES:
patent: 1108521 (1914-08-01), Scheuermann
patent: 1150119 (1915-08-01), Hosking
patent: 1401292 (1921-12-01), Van Meter
patent: 3097916 (1963-07-01), Dawson et al.
patent: 3939287 (1976-02-01), Orwig et al.
patent: 4059048 (1977-11-01), Dickson
patent: 4532115 (1985-07-01), Nishino et al.
patent: 4578256 (1986-03-01), Nishino et al.
patent: 4579714 (1986-04-01), Gunn
patent: 4651463 (1987-03-01), Friemel
patent: 4756117 (1988-07-01), Friemel
J. W. Mellor, "A Comprehensive Treatise of Inorganic and Theoretical Chemistry, vol. VIII", Longmans, Green and Co., Mar. 1947.

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