Reaction Kinetics in the 1-10 GPa Pressure Regime; A Tool for Controlling the Generation of Fumes from Mining Explosives

1-10 GPa 压力范围内的反应动力学；

• 批准号: 9417526
• 负责人: Per-Anders Persson
• 金额: $ 8万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-02-15 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9417526&HistoricalAwards=false
• 关键词: Reaction; Kinetics; 10; GPa; Pressure

ABSTRACT PERSSON CTS-9417526 The proposed study is an Industry-University Cooperative Research Project between the New Mexico Institute of Mining and Technology and Nelson Brothers Inc. The PIs propose a systematic study of the chemistry of ammonium nitrate (AN) and ammonium nitrate mixed with fuel oil (ANFO) at pressures similar to those encountered during the detonation of solid explosives. The objective is to understand the fundamental mechanisms of reaction occurring in the detonation of these materials and to find additives which will reduce the red smoke thought to contain the oxides of nitrogen, NO, and NO2, that is generated when AN and ANFO are used as explosives especially at high pressures. Three different laboratory experiments will be used to study the decomposition of these energetic materials. These consist of (1) ignition and surface burning by contact with an adiabatically compressed heated inert gas, (2) shock compression by impact with a flyer plate, and (3) detonation of 1 kg charges in a closed chamber. Reaction products will be analyzed by FTIR and GCMS. These laboratory studies will be carried out at New Mexico. Large scale field test at Nelson Brothers Inc., aimed at obtaining more information on the composition of the red clouds, and the testing of the new proposed compositions and blasting methods, will be carried out. Color video and sampling of the product gases will be used and results compared to the conventional explosives.

摘要人 CTS-9417526 拟议的研究是新墨西哥州采矿技术研究所和尼尔森兄弟公司之间的产学合作研究项目。PI 提议对硝酸铵 (AN) 和硝酸铵与燃油混合 (ANFO) 在类似于固体炸药爆炸过程中遇到的压力下的化学性质进行系统研究。 目的是了解这些材料爆炸时发生反应的基本机制，并找到能够减少 AN 和 ANFO 作为炸药（特别是在高压下）使用时产生的含有氮、NO 和 NO2 氧化物的红烟的添加剂。 将使用三个不同的实验室实验来研究这些含能材料的分解。 这些包括 (1) 通过与绝热压缩的加热惰性气体接触而点燃和表面燃烧，(2) 通过与飞板撞击而产生冲击压缩，以及 (3) 在密闭室中 1 公斤装药的爆炸。 反应产物将通过 FTIR 和 GCMS 进行分析。 这些实验室研究将在新墨西哥州进行。 将在纳尔逊兄弟公司进行大规模现场测试，旨在获得有关红云成分的更多信息，并对新提出的成分和爆破方法进行测试。 将使用彩色视频和产品气体采样，并将结果与​​传统炸药进行比较。