Recrystallization method of spherical pentaerythritol tetranitrate

摘要

The present invention relates to a recrystallization method of pentaerythritol tetranitrate, which is widely used as a primer for explosives, an explosive for explosives, and a component of mixed explosives as a high explosive in the field of explosives.;An object of the present invention is to make a rod or needle crystal shape obtained by a conventional recrystallization method similar to a spherical shape to be more insensitive to static electricity or impact.;The present invention is characterized in that, in a conventional recrystallization process for obtaining a recrystallized product by using a batch reactor, acetone and water, the particle growth regulator is added to acetone or water.;The pentaerythritol tetranitrate produced by the present invention can be used as a primer for drug primers, a drug of the detonation line, and a component of mixed explosives.