Mechanisms of Ammonium Nitrate Decomposition and Stability of Industrial Explosives in Reactive Mining Grounds

本项目旨在探讨硝酸铵基炸药与矿床覆岩中常见的黄铁矿页岩的反应机理，研究矿物学特征、碳质材料、风化、pH值及各种抑制剂的应用等因素对硝酸铵分解及稳定性的影响。硝酸铵结晶，这大大降低了乳化炸药的稳定性，将使用化学和显微工具进行检查。这项研究的成果将提供科学基础，支持开发用于危险反应性矿场的安全和具有成本效益的炸药。

This project is designed to probe reaction mechanisms of ammonium nitrate based explosives with pyritic shales commonly found in overburdens of mineral deposits, and to study the influence of various factors, such as mineralogical characteristics, carbonaceous materials, weathering, pH values and application of various inhibition agents, on the decomposition and stability of ammonium nitrate. Ammonium nitrate crystallisation, which significantly reduces the stability of emulsion explosives, will be examined using both chemical and microscopic tools. The outcomes of this research will provide a scientific basis that underpins the development of safe and cost-effective explosives for applications in dangerous reactive mining grounds.