摘要:
The invention relates to a new explosive compound which is an associated compound of ammonium nitrate and glycine and also includes explosive composition containing this compound. The compound ANGC is prepared by a crystallisation process preferably effected by cooling a melt or saturated solution containing ammonium nitrate and glycine. ANGC is especially advantageous as an ingredient of low water content emulsion explosive compositions.
摘要:
Emulsion blasting agents comprising a discontinuous oxidiser component and an aqueous disperse phase, contain hydrazine mononitrate as oxidiser. Such compositions require no or little gas sensitisation.
摘要:
This invention provides a solid explosive composition comprising a low-water content melt-in-fuel emulsion when prepared at elevated temperature which solidifies on cooling. The emulsion comprises a continuous phase containing water immiscible fuel and emulsifier and a discontinuous phase containing oxidiser salt. A particulate material effective as a nucleating agent is incorporated in the composition to reduce supercooling of the discontinuous phase and to accelerate crystallisation of the oxidiser salt. The particulate nucleating agent is preferably colloidal solid particles for example silica or an insoluble salt of aluminium, calcium or barium, which salt may optionally be formed in situ by a double decomposition reaction. The presence of the nucleating agent to accelerate crystallisation of the oxidiser enhances the proportion of discrete droplets which remain totally encapsulated in the solidified composition and enables solid products to be obtained from relatively low melting oxidiser salt melts.
摘要:
An emulsion explosive composition comprising an oxygen-supplying salt component as a discontinuous phase, an organic medium forming a continuous phase and a stabiliser which comprises a polycyclic hydrocarbon. Suitable stabilisers include sterols, such as cholesterol. The compositions, which may also include a conventional emulsifier, exhibit small diameter cap-sensitivity and improved storage characteristics.
摘要:
A process is described for the comminution of a solid material in the presence of a saturated solution of the solid in a liquid in which the solid has a solubility greater than 1 %, and also in the presence of an additive dissolved in the saturated solution which can at least partially inhibit re-growth at crystal surfaces of the solid material. The process is of particular interest for the comminution of water-soluble salts in the presence of their saturated aqueous solutions and may be employed to make, inter alia, improved slurry explosives and fluid fertiliser compositions.
摘要:
The invention relates to a new explosive compound which is an associated compound of ammonium nitrate and glycine and also includes explosive composition containing this compound. The compound ANGC is prepared by a crystallisation process preferably effected by cooling a melt or saturated solution containing ammonium nitrate and glycine. ANGC is especially advantageous as an ingredient of low water content emulsion explosive compositions.
摘要:
An emulsion explosive composition comprising a discontinuous phase containing an oxygen-supplying phase wherein the discontinuous phase additionally comprises a crystal growth-inhibitor. The compositions exhibit improved storage characteristics.