초록 ▼

Explosives that are sensitized blends of inorganic nitrate, e.g., AN, particles, such as AN or ANFO prills, and an aqueous slurry comprising a thickened aqueous solution of an inorganic oxidizing salt, preferably AN, are rendered storage-stable by keeping the slurry\s water content low enough, and i

Explosives that are sensitized blends of inorganic nitrate, e.g., AN, particles, such as AN or ANFO prills, and an aqueous slurry comprising a thickened aqueous solution of an inorganic oxidizing salt, preferably AN, are rendered storage-stable by keeping the slurry\s water content low enough, and its viscosity high enough, that the slurry is water-retentive. Water immobilization in the slurry, a requirement for storage stability, is achieved despite the slurry\s flowable consistency at the time of blending. A blend containing about 25% slurry or less, is essentially in the form of a granular mass of free-flowing, high-density, slurry-bearing prills, and the slurry is sensitizable by the prills alone. As the slurry content exceeds about 25%, the blend takes on the characteristics of a thick slurry, requiring a supplemental sensitizer in the slurry per se. Slurries containing a nitrogen-base salt of an inorganic oxidizing acid, preferably monomethylamine nitrate, are preferred because this additive affords a saturated solution with lower water content, and also can act as a sensitizer.

대표청구항 ▼

A storage-stable explosive composition comprising a sensitized blend formed by combining inorganic nitrate particles and an aqueous slurry comprising a thickened aqueous solution of an inorganic oxidizing salt, said slurry\s water content and viscosity being restricted so as to make said slurry at o

A storage-stable explosive composition comprising a sensitized blend formed by combining inorganic nitrate particles and an aqueous slurry comprising a thickened aqueous solution of an inorganic oxidizing salt, said slurry\s water content and viscosity being restricted so as to make said slurry at once flowable and water-retentive, said slurry constituting about from 5 to 60 percent, and said nitrate particles about from 95 to 40 percent, of said blend by weight.