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US 2020/0216369 A1Published application
Explosive compositions with reduced fume
OwnerZoe Smith, Brendan Griggs +2inventors
InventorsZoe Smith, Brendan Griggs, Jeff Gore, Nathan Paris
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Abstract
Explosive compositions including coated urea and an explosive including ammonium nitrate and fuel oil are provided. The explosive compositions can generate reduced levels of nitrogen oxide upon detonation. Methods of loading a blasthole with the explosive compositions and methods of reducing post-blast nitrogen oxide are also provided.
Claims20
An explosive composition comprising:
- an explosive comprising ammonium nitrate and fuel oil;
- and
- coated urea.
A method of loading a blasthole with an explosive composition, the method comprising:
- mixing an explosive comprising ammonium nitrate and fuel oil (ANFO) with coated urea to form the explosive composition;
- and
- delivering the explosive composition to the blasthole.
A method of reducing post-blast nitrogen oxide, the method comprising:
- mixing an explosive comprising ammonium nitrate and fuel oil with coated urea to form an explosive composition;
- and
- delivering the explosive composition to a blasthole.
Dependencies are inferred from the claim text.