C - Chemistry – Metallurgy – 06 – B
Patent
C - Chemistry, Metallurgy
06
B
C06B 31/28 (2006.01) F42D 5/00 (2006.01)
Patent
CA 2243884
A method of reducing the production of ammonia gas subsequent to the detonation of an explosive composition wherein the area surrounding the site of the explosion includes water and at least one cement formation is provided. The method comprises the steps of: (a) providing an inorganic oxidizing salt including ammonium and a carbonaceous fuel; (b) selecting a water soluble acid, the solubility of the acid and/or the dissociation constant of the acid selected to maintain the pH of an aqueous solution produced by the water below the level at which ammonia is released; and, (c) loading an explosive composition comprising the inorganic oxidizing salt, the carbonaceous fuel, and the water soluble acid into a borehole.
Divulgation d'une méthode pour réduire la production d'ammoniac, à la suite de la détonation d'une composition explosive, dans une zone entourant le site de l'explosion comprenant de l'eau et au moins une structure en ciment. Cette méthode comprend les étapes suivantes : a) l'utilisation d'un sel oxydant inorganique contenant de l'ammonium et d'un carburant carboné; b) la sélection d'un acide soluble dans l'eau, dont la solubilité et/ou la constante de dissociation sont telles qu'elles peuvent maintenir le pH d'une solution aqueuse produite à partir de l'eau se situant sous le niveau d'émission de l'ammoniac; et c) le chargement de la composition explosive comprenant le sel oxydant inorganique, le carburant carboné et l'acide soluble dans l'eau dans un trou de forage.
Bereskin & Parr
Eti Canada Inc.
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