Patent ID: 6942744
Filing Date: 2005-09-13
Classification: C06B

Abstract:
1. An emulsion explosive composition comprising: a base emulsion and a sensitising agent to render the emulsion explosive composition detonable, wherein the base emulsion phase comprises a continuous fuel phase and an emulsified discontinuous oxidiser phase, the continuous fuel phase comprising a liquid fuel having a viscosity of at most 10 cP at 40° C., and the discontinuous oxidiser phase comprising a mixture of at least two oxygen-releasing salts in aqueous solution, the relative proportions of the at least two oxygen-releasing salts being selected in order to minimise the amount of water in the aqueous solution, wherein the base emulsion phase has a phase ratio of continuous fuel phase to discontinuous oxidiser phase of at least 8:92, wherein the viscosity of the base emulsion phase is less than 2000 cP (Brookfield viscosity #4 spindle at 50 rpm) at 25° C., and wherein the emulsion explosive composition has a viscosity of 3000 to 5000 cP (Brookfield viscosity #4 spindle at 50 rpm) at 250° C.