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Process for obtaining a charge of hexanitrohexaazaisowurtzitane crystals having a rounded morphology; charge and corresponding energetic material
Process for obtaining a charge of hexanitrohexaazaisowurtzitane crystals having a rounded morphology; charge and corresponding energetic material
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机译:获得具有圆形形态的六硝基六氮杂异纤锌矿型结构烷烃的电荷的方法;电荷和相应的含能材料
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摘要
The present invention provides a process for obtaining a charge of hexanitrohexaazaisowurtzitane crystals having rounded morphology. It also provides said charge, the energetic material comprising it, and a process for manufacturing said material. Said process for obtaining said charge comprises:preparing a saturated solution of any polymorphic form of hexanitrohexaazaisowurtzitane in a mixture comprising both an organic solvent for said hexanitrohexaazaisowurtzitane and an organic nonsolvent for said hexanitrohexaazaisowurtzitane, said solvent being more volatile than said nonsolvent;seeding this saturated solution with a few hexanitrohexaazaisowurtzitane crystals; and thenconcentrating the seeded, saturated solution by at least partial evaporation of the solvent, said evaporation of the solvent being performed at a temperature of between 35° C. and 15° C. and at a pressure adjusted, to plus or minus 12 mbar, to the boiling pressure of the solvent in said solution, throughout the process of evaporating said solvent from said solution.展开▼