Method for the preparation of a water-in-oil type emulsion explosive and an oxidizer composition for use in the method

摘要

A method and an oxidizing composition for preparation of a water-in-oil type emulsion explosive in which a pre-emulsion is formed from a fuel phase and a first part of an oxidizer phase, an oxidizing composition is prepared between a second part of the oxidizer phase and a void containing or void generating material for the explosive whereafter the pre-emulsion and the mixture are emulsified to form the final emulsion.