초록 ▼

Particulate high explosives containing ammonium nitrate and organic or inorganic ammonium nitrate sensitizers are disclosed along with methods of producing the same. The sensitizers, comprising sulfur, metals, carbonaceous material and combinations of these, are dispersed throughout each particle in

Particulate high explosives containing ammonium nitrate and organic or inorganic ammonium nitrate sensitizers are disclosed along with methods of producing the same. The sensitizers, comprising sulfur, metals, carbonaceous material and combinations of these, are dispersed throughout each particle in intimate association with the ammonium nitrate by suspension in a layer of ammonium nitrate-calcium sulfate reaction product.

대표청구항 ▼

A particulate high explosive composition comprising at least about 70 weight percent of the particulate reaction product of calcium sulfate dihydrate and ammonium nitrate particles containing at least about 5 weight percent calcium sulfate and at least about 60 weight percent ammonium nitrate based

A particulate high explosive composition comprising at least about 70 weight percent of the particulate reaction product of calcium sulfate dihydrate and ammonium nitrate particles containing at least about 5 weight percent calcium sulfate and at least about 60 weight percent ammonium nitrate based on the dry weight of said calcium sulfate and ammonium nitrate, and about 0.5 to about 20 weight percent of an ammonium nitrate sensitizer dispersed in said calcium sulfate-ammonium nitrate reaction product and selected from the group consisting of dispersed combustible carbonaceous matter, elemental sulfur, zinc, aluminum, magnesium and combinations thereof, wherein said particulate reaction product of said calcium sulfate and ammonium nitrate is produced by the method including the steps of intimately mixing said ammonium nitrate particles and calcium sulfate in finely divided form and heating the resultant mixture to an elevated temperature sufficient to induce the endothermic reaction of calcium sulfate with said ammonium nitrate particles. The method of producing the particulate high explosive composition of claim 1 including the steps of mixing said ammonium nitrate sensitizer with said calcium sulfate and ammonium nitrate in either fluid or finely divided solid form, reacting said calcium sulfate dihydrate and ammonium nitrate particles at a temperature of at least about 210°F. sufficient to promote said endothermic reaction and form said particulate reaction product, the particles of which comprise, at least at the outer surfaces thereof, said sensitizer dispersed in the reaction product of said calcium sulfate and ammonium nitrate.