Taguchi Optimization of Solvent‐Antisolvent Crystallization to Prepare Ammonium Perchlorate Particles

Abstract

The sphericity and size of ammonium perchlorate (AP) particles significantly influence the properties of composite propellants. As the AP particles become more spherical, the accumulation coefficient increases, the viscosity during casting decreases, and the particle loading and burning rate increase. Hence, the production of micronized AP particles with an average size between 1 and 20 μm is important to increase the loading percentage of AP in the composite propellant. Here, the Taguchi experimental design was used to optimize the solvent-antisolvent crystallization (SAC) process for the preparation of micronized AP particles with higher sphericity. SAC parameters such as the type of antisolvent, the solvent-to-antisolvent ratio, the antisolvent temperature, the stirring speed, and the retention time were investigated at four levels. The type of antisolvent and the solvent-to-antisolvent ratio were found to mainly contribute to improving the sphericity and size of the AP particles, respectively.

Impact of Built‐in Helical Fins on the Performance of Oil‐Gas Cyclone Separators

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Crystal Engineering in Antisolvent Crystallization of Rare Earth Elements (REEs)

“…This is necessary to reduce the solubility of the solute significantly. Increasing the amount of antisolvent enhances the interaction between the antisolvent molecules and species in the aqueous phase [12][13][14]. This can potentially increase the degree of supersaturation in the crystallizer, resulting in excessive nucleation and smaller final particle sizes [10,15,16].…”