Water in oil emulsion explosives containing a nitrate salt with

Details Water in oil emulsion explosives containing a nitrate salt with Water in oil emulsion explosives containing a nitrate salt with

1994-02-17

1995-07-11

Walsh, Donald P.

Explosive and thermic compositions or charges

Containing inorganic nitrogen-oxygen salt

Ammonium nitrate

149 61, 1491096, C06R 3128

Patent

active

054317576

ABSTRACT:
The invention relates to cap or booster sensitive explosives for application in bulk or cartridge form in boreholes. The oxidizing salt of the explosive is ammonium nitrate, sodium nitrate and/or calcium nitrate having untamped bulk density of 0.3-0.7 g/cm.sup.3. The explosive can be a w-i-o emulsion explosive where the discontinuous phase is an aqueous solution of the oxidizing salts and where low density ammonium nitrate comprises 10-80 weight % of the total explosive. ANFO, HANFO and water-gel explosives comprising said oxidizing salts having untamped bulk density of 0.3-0.7 g/cm.sup.3 are examples of explosives according to the invention. The above types of explosives are especially suitable in small and medium size boreholes without using sensitizing or density reducing agents.

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