Explosive and thermic compositions or charges – Structure or arrangement of component or product
Patent
1998-02-10
2000-02-08
Poon, Peter M.
Explosive and thermic compositions or charges
Structure or arrangement of component or product
1491096, C06B 4500, D03D 2300
Patent
active
060224282
ABSTRACT:
The invention comprises an emulsion explosive composition having an organic fuel as a continuous phase; an inorganic oxidizer salt solution or melt as a discontinuous phase; an emulsifier; and gas bubbles formed from a chemical gassing agent that comprises a nitrite salt and an ion selected from the group consisting of calcium ion, strontium ion and mixtures thereof as a gassing enhancer. The invention further comprises a method for chemically gassing an emulsion explosive composition. The method involves adding to a pre-formed emulsion phase a chemical gassing agent that comprises a nitrite salt and calcium or strontium ion and mixing the gassing agent uniformly throughout the emulsion phase to produce finely dispersed, sensitizing gas bubbles.
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Cranney Don H.
Hansen Jared R.
Baker Aileen J.
Dyno Nobel Inc.
Poon Peter M.
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