Water resistant blasting agent and method of use

  • US 4,181,546 A
  • Filed: 08/25/1978
  • Issued: 01/01/1980
  • Est. Priority Date: 09/19/1977
  • Status: Expired due to Term
First Claim
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1. A blasting composition consisting essentially of a combination of:

  • (a) 40 to 60% by weight, based on the total composition, of a water-in-oil emulsion comprising powerful oxidizer salt in aqueous solution, said solution being dispersed in an outer continuous oil phase and including a gas-trapping density-reducing material to sensitize the composition and improve its detonability,(b) 60 to 40% by weight of a substantially solid particulate oxidizer consisting primarily of ammonium nitrate, and(c) the emulsion being blended through and into the solid particulate oxidizer so as to fill substantially completely the voids and interstices in and between the solid particles so as to substantially exclude water.

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