Chemically foamed emulsion explosive composition and process for

Details Chemically foamed emulsion explosive composition and process for Chemically foamed emulsion explosive composition and process for

1990-03-02

1991-02-12

Lechert, Jr, Stephen J.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

149 60, 149 61, 1491096, C06B 4500

Patent

active

049921185

ABSTRACT:
A water in oil emulsion explosive composition containing inorganic nitrate and the process for its preparation are disclosed. The composition is an explosive mixture which consists of an aqueous inorganic oxidizer salt solution as disperse phase, residual oil and additives as continuous phase, emulsion foamer as occluded bubble producing material, and span-80 as emulsifier. By adjusting the pH of disperse phase and emulsion foamer, the foaming process at elevated temperature is achieved. it is an industrial explosive and has lower production cost, excellent stability, good moisture resistance and low toxicity, and has a storage life longer than 10 months.

REFERENCES:
patent: 4472215 (1984-09-01), Binet et al.
patent: 4708753 (1987-11-01), Forsberg
patent: 4840687 (1989-06-01), Forsberg
patent: 4844756 (1989-07-01), Forsberg
patent: 4919178 (1990-04-01), Riga et al.

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