Method of lowering the density of ammonium nitrate-based...

C - Chemistry – Metallurgy – 06 – B

Patent

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C06B 31/30 (2006.01) C06B 23/00 (2006.01) C06B 31/28 (2006.01) C06B 45/00 (2006.01)

Patent

CA 2120440

METHOD OF LOWERING THE DENSITY OF AMMONIUM NITRATE-BASED MINING EXPLOSIVES ABSTRACT OF THE DISCLOSURE The density of ammonium nitrate-based mining explo- sives, such as ANFO, heavy ANFO and emulsion explosives, is lowered by adding an expanded grain, such as expanded popcorn, expanded rice, or expanded wheat, to the explo- sive. As much as 10% of the explosive composition may be an expanded grain. The present invention may be used with porous ammonium nitrate, dense agricultural grade ammonium nitrate, crystalline ammonium nitrate, and ground ammonium nitrate.

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