The present invention relates to an emulsion composition for an explosive and to a method of preparing the same, wherein the emulsion composition includes, based on the total weight thereof, 85 to 95 wt % of an oxidizing agent aqueous solution, 0.3 to 5 wt % of an emulsifier, and 3 to 10 wt % of oil, the emulsifier including a PIBSA (polyisobutylene succinic anhydride) amine salt having an acid value of 30 or less and an amine value of 45 to 65, under a precondition that the oxidizing agent aqueous solution includes at least one of industrial ammonium nitrate, agricultural ammonium nitrate and low-specific-gravity ammonium nitrate for an ammonium nitrate fuel oil explosive, which is used without additional filtration or removal of impurities.

The present application relates to a closed container containing ammonium nitrate (AN) particles in an amount of 91 to 99.75 weight % and desiccant in an amount of 0.25 and 9 weight %, wherein the AN particles have a water content of between 0 and 0.7 weight %, and the desiccant particles comprise between 50 and 95 weight % of AN and between 5 and 50 weight % of magnesium nitrate dispersed in the AN. The application furthermore relates to a method for producing of ammonium nitrate particles that are stored in a closed container and having improved anti-caking properties.

Manufacture is carried out in a continuous manner while simultaneously loading the blast holes in a device with mixing capability where (a) a less sensitive or non-explosive water-based matrix containing a cross-linkable polymer, (b) a cross-linking agent for cross-linking the polymer contained in the matrix, (c) a gas-generating agent, are mixed. The presence of the polymer distributed uniformly in the matrix together with the cross-linking agent results in a three-dimensional network formed by molecular polymer chains bound to one another in a short period of time after mixing. The process can be performed in trucks for loading explosives in blast holes having compartments for the different components of the mixture and one or several mixing devices allowing the manufacture of the final mixture which would be unloaded into the blast holes either by means of a pump or an auger.

Manufacture is carried out in a continuous manner while simultaneously loading the blast holes in a device with mixing capability where (a) a less sensitive or non-explosive water-based matrix containing a cross-linkable polymer, (b) a cross-linking agent for cross-linking the polymer contained in the matrix, (c) a gas-generating agent, are mixed. The presence of the polymer distributed uniformly in the matrix together with the cross-linking agent results in a three-dimensional network formed by molecular polymer chains bound to one another in a short period of time after mixing. The process can be performed in trucks for loading explosives in blast holes having compartments for the different components of the mixture and one or several mixing devices allowing the manufacture of the final mixture which would be unloaded into the blast holes either by means of a pump or an auger.

The present invention provides an explosive composition comprising from about 2 to about 25 w/w hydrogen peroxide, from greater than 0 and up to about 90% w/w of one or more of other oxidisers. The present invention also provides a method of 5 preparing an explosive composition and use of the explosive composition of the invention to break and move ground, such as in mining operations.

A liquid explosive for in-situ explosive fracturing in low-permeability oilfields and application thereof are provided. The liquid explosive includes raw materials in parts by mass: a main explosive with positive oxygen balance, a guest regulator and isolation microcapsules; the main explosive with the positive oxygen balance includes raw materials in parts by mass: monomethylamine nitrate, ammonium nitrate, sodium nitrate, water, guar gum, sodium nitrite, a high-temperature resistant regulator with a low detonation velocity and a surfactant; the guest regulator includes raw materials in parts by mass: a reducing agent and a density regulator; the isolation microcapsules include raw materials in parts by mass: porous hollow microbeads, a pore plugging agent and wall materials of pressure-resistant microcapsules; the guest regulator exists in the porous hollow microbeads of the isolation microcapsules.

An explosive emulsion composition of the water-in-oil type, comprising: between 80 wt. % and 95 wt. % of an oxidizer phase in view of the total weight of the emulsion composition, comprising at least 40 wt. % of ammonium nitrate (AN), and at least 5 wt. % of a secondary nitrate salt, in view of the total weight of the oxidizer phase composition, and between 5 wt. % and 20 wt. % of an organic phase in view of the total weight of the emulsion composition, the organic phase comprising: between 12 wt. % and 50 wt. % of one or more emulsifiers, between 50 wt. % and 88 wt. % of a fuel composition, in view of the total weight of the organic phase composition,
characterized in that the fuel composition comprises between 20 wt. % and 100 wt. % of a hydrotreated vegetable oil (HVO), in view of the total weight of the fuel composition.

Phase-stabilized ammonium nitrate (PSAN) prill including ammonium nitrate and a potassium salt are provided. The PSAN prill can be explosive grade and low density. The PSAN prill may include a porosity enhancing agent such as an interfacial surface modifier or a pore former. Methods of preparing the PSAN prill and related emulsions are also provided.

Phase-stabilized ammonium nitrate (PSAN) prill including ammonium nitrate and a potassium salt are provided. The PSAN prill can be explosive grade and low density. The PSAN prill may include a porosity enhancing agent such as an interfacial surface modifier or a pore former. Methods of preparing the PSAN prill and related emulsions are also provided.

Explosive compositions for use in high temperature, reactive ground, or both, are disclosed. The explosive compositions can include an emulsion with a continuous organic fuel phase and a discontinuous oxidizer phase. The oxidizer phase can include one or more Group I or Group II nitrates.