Emulsion that is compatible with reactive sulfide/pyrite ores

Details Emulsion that is compatible with reactive sulfide/pyrite ores Emulsion that is compatible with reactive sulfide/pyrite ores

1992-03-16

1992-10-27

Nelson, Peter A.

Ammunition and explosives

Blasting

Borehole loading

102312, 149 2, 149 60, 149 83, F42B 300, C06B 3130

Patent

active

051591537

ABSTRACT:
The water-in-oil emulsion explosives of this invention contain a water-immiscible organic fuel as a continuous phase, an emulsified inorganic oxidizer salt solution as a discontinuous phase, an emulsifier, gas bubbles or an air entraining agent for sensitization, and from about 1% to about 30% by weight of the composition urea for stabilization against thermal degradation with reactive sulfide/pyrite ores. The invention also relates to a method of using such explosives.

REFERENCES:
patent: 3046888 (1962-07-01), Gordon
patent: 3377909 (1968-04-01), Grant et al.
patent: 4161142 (1979-07-01), Edwards et al.
patent: 4273049 (1981-07-01), Edwards et al.
patent: 4448619 (1984-03-01), Mitchell
patent: 4507161 (1985-03-01), Sujanski et al.
patent: 4722757 (1988-02-01), Cooper et al.
patent: 5026442 (1991-06-01), Yabley et al.

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