Explosive comprising a mixture of a nitrate-oil explosive and a

Details Explosive comprising a mixture of a nitrate-oil explosive and a Explosive comprising a mixture of a nitrate-oil explosive and a

1990-03-27

1991-02-12

Lechert, Jr., Stephen J.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

149 46, 149 60, 149 61, 1491096, C06B 4500

Patent

active

049921193

ABSTRACT:
The present invention relates to a HANFO explosive consisting of a mixture of at least one nitrate-oil explosive (ANFO-type) and at least one water-in-oil explosive, and a method for its manufacture. The oil of the ANFO part contains 0.3-7.0 weight % based on the weight of the oil component of the oilsoluble elastomer having a viscosity average molecular weight of 30,000-5 million, preferably 900,000-2.5 million. The manufacture of the HANFO explosive can be carried out by first adding an oilsoluble elastomer to the oil of the ANFO-type explosive, then mixing the oil with sodium-, ammonium- and/or calcium nitrate and then mixing this mixture together with a water-in-oil emulsion explosive. The HANFO explosive can be applied both in bulk and cartridged form.

REFERENCES:
patent: 3943820 (1976-03-01), Persson
patent: 4111727 (1978-09-01), Clay
patent: 4181546 (1980-01-01), Clay
patent: 4294633 (1981-10-01), Clay
patent: 4736683 (1988-04-01), Bachman et al.
patent: 4867813 (1989-09-01), Young

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