Methods and reaction mixtures for controlling exothermic...

Details Methods and reaction mixtures for controlling exothermic... Methods and reaction mixtures for controlling exothermic...

C - Chemistry, Metallurgy

09

K

C09K 5/18 (2006.01) A47J 36/28 (2006.01) F24J 1/00 (2006.01)

Patent

CA 2414191

Reaction mixtures (20) that include exothermic generating particles (22) having a water soluble coating (24) encasing a portion of the particles (22) and, optionally an aqueous solution (28), and a buffer (26). The reaction mixtures (20) are especially suited to generate heat in a controllable manner. In one such controlled reaction, the reaction components are mixed together and the mixture increases in temperature to a Set Temperature within a predetermined time, and the mixture remains at the Set Temperature for a longer period of time. Apparatuses (10) and methods that use these reaction mixtures (22) are also disclosed.

L'invention concerne des mélanges réactionnels (20) comprenant des particules à génération exothermiques (22) possédant un revêtement hydrosoluble (24) enrobant une partie des particules (22) et, éventuellement, une solution aqueuse (28), ainsi qu'un tampon (26). Les mélanges réactionnels (20) sont spécialement conçus pour générer de la chaleur d'une manière contrôlée. Dans une telle réaction contrôlée, les composants réactionnels sont mélangés et la température du mélange augmente pour atteindre une température établie dans un laps de temps prédéterminé, et le mélange reste à la température établie pendant une durée plus longue. L'invention concerne également des appareils (10) et des procédés mettant en oeuvre ces mélanges réactionnels (22).

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