Based on the insensitive principle,cohering principle and the influence of the proportion of ingredient on the safety,a new kind of insensitive explosive is developed with PETN as primary material and with wax,polyisobutylene and black lead as desensitizers and adhesives.

With the application of Aspen Plus software, rigorous simulations were firstly performed to the fully thermally coupled distillation columns for ternary hydrocarbon mixture separation, focusing on how middle component fractional recovery influences overall expense under the cond.

In the neodymium electrolysis with oxyfluorides, it is possible to improve quality of metallic neodymium product by readjusting proportion of molten salt and raising the utilization rate of neodymium oxide appropriately.