Method of reducing density by means of gas-generating agent

Details Method of reducing density by means of gas-generating agent Method of reducing density by means of gas-generating agent

C - Chemistry, Metallurgy

01

C

C01C 1/18 (2006.01) C06B 23/00 (2006.01) C06B 31/28 (2006.01)

Patent

CA 2388810

This invention relates to a method of reducing density in an ammonium nitrate product. The method comprises providing a gas generating agent in the form of a water-insoluble solid compound capable of generating gas by chemical reaction, and providing an ammonium nitrate product. The water-insoluble solid gas generating agent is introduced into the ammonium nitrate product under conditions causing gas generation by the gas generating agent in the ammonium nitrate product. The ammonium nitrate product is particulated to form a particulated prilled ammonium nitrate product with reduced density. The invention also relates to a particulated ammonium nitrate product produced by this method and to the use of a gas generating agent in the form of a water- insoluble solid compound to reduce density in a particulated ammonium nitrate product.

Cette invention a trait à un procédé permettant de réduire la densité d'un produit au nitrate d'ammonium. Le procédé repose sur l'utilisation d'un agent générateur de gaz, se présentant sous la forme d'un composé solide insoluble dans l'eau, capable de produire un gaz par réaction chimique. On introduit l'agent générateur de gaz, solide et insoluble dans l'eau, dans le produit au nitrate d'ammonium dans des conditions propices à la production de gaz au sein de ce produit. Ce produit au nitrate d'ammonium est transformé en particules afin de constituer un produit au nitrate d'ammonium particulaire en granulés à densité réduite. L'invention porte également sur un produit au nitrate d'ammonium particulaire produit grâce à ce procédé ainsi que sur l'utilisation d'un agent générateur de gaz, se présentant sous forme de composé solide insoluble dans l'eau, aux fins de la diminution de la densité d'un produit au nitrate d'ammonium particulaire.

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