在酸性离子液体（AIL）催化下利用N₂O₅硝解DADN制备了HMX。考察了离子液体用量、反应时间、物料配比、不同离子液体对硝解反应的影响，在优化条件下进行了对比试验。结果表明，在所用的21种AIL中，\[Et₃NH\]TsO具有最好的催化效果，HMX的纯度为99%，收率可达到95.6%，离子液体可以通过简单的萃取后回收使用5次，催化效果没有明显的降低。

For defensiving large-caliber armor-piercing attacksbetter and improving tanks′survivability on the battlefield,the disturbance of penetrators by a new type of explosive reactive armorstructure is studied by the experiment and numerical methods. By experimentalstudy on the penetrators penetrating target at different normal angle，the penetration at different angle are arrived, and the protectcoefficient is calculated. The results show that the new explosive reactivearmor disturbed the penetrators effectively, caused more mass loss and changesin flight attitude of the armorpiercing projectile,destroied its ability to continue to penetrate the lord armor, thereby achievea greatly increased protective effect on the penetrators.