Method for obtaining ADN crystals through crystallization in a viscous medium
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United States of America Patent
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Jul 23, 2013
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Jul 14, 2011
app pub date -
Sep 17, 2009
filing date -
Sep 18, 2008
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Abstract
The present invention relates to a method for crystallizing ammonium dinitramide (ADN), through spontaneous nucleation and crystal growth, from a solution containing said ammonium dinitramide (AND) dissolved in a solvent. Said solvent characteristically has a viscosity greater than or equal to 0.25 Pa s (250 cP) when said spontaneous nucleation is implemented. The ADN crystals obtained by said method have a median shape factor of 1 to 1.5 and are perfectly suitable for placement in the composition of energy materials.
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