| 摘要 |
Inter alia, a method of sensitizing an emulsion explosive composition or of forming an emulsion blasting composition characterized in that it comprises: forming a fuel phase comprising an organic liquid fuel, an emulsifier and unexpanded organic microspheres; forming an inorganic oxidizer salt solution; and mixing together the fuel phase and the oxidizer solution with sufficient shear to form a water-in-oil emulsion, such that the fuel phase is at a temperature below the expansion temperature of the organic microspheres and the inorganic oxidizer salt solution is at a temperature above the expansion temperature of the organic microspheres, so as to allow the elevated temperature of the oxidizer salt solution to expand the organic microspheres and thereby lower the density and increase the sensitivity of the emulsion explosive or blasting composition is disclosed. |
