Production of semiochemical emitters having a controlled...

Details Production of semiochemical emitters having a controlled... Production of semiochemical emitters having a controlled...

A - Human Necessities

01

N

A01N 25/18 (2006.01) C01B 39/00 (2006.01)

Patent

CA 2322816

The invention relates to a method for producing supports based on zeolites and other inorganic molecular sieves for the controlled emission of semiochemicals, with application to the environmental combat against agricultural plagues. The process is based on the modification of one or a plurality of the physico-chemical characteristics of zeolitic supports: Si/Al ratio, acidity, compensation cations and pore size, as well as the compaction pressure and relation between the surface and the weight of the conformed material, with the object to regulate the absorption force and the further controlled and extended emission of the semiochemicals.

L'invention concerne un procédé d'obtention de supports à base de zéolites et d'autres tamis moléculaires inorganiques pour l'émission contrôlée des produits sémiochimiques utilisés dans la lutte écologique contre les ravageurs de cultures. Ce procédé consiste à modifier une ou plusieurs caractéristiques physico-chimiques des supports zéolitiques: le rapport Si/Al, l'acidité, les cations de compensation et la taille du pore, ainsi que la pression de compactage et le rapport surface/poids du matériau formé afin de réguler la force d'absorption et l'émission ultérieure contrôlée et prolongée des produits sémiochimiques.

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