@article {46003, title = {Antisolvent based precipitation: batch, capillary flow reactor and impinging jet reactor}, journal = {Chemical Engineering Journal}, volume = {369}, year = {2019}, month = {AUG }, pages = {1161-1171}, type = {Article}, abstract = {

A method for continuous antisolvent precipitation of ammonium perchlorate (AP) using a confined impinging jet reactor (CIJR) is studied. The geometry of the CIJR was optimized to achieve excellent mixing with a significant reduction in the particle deposition on walls. Initially, the experimental conditions were optimized in a batch system and then in a continuous capillary reactor. Later those conditions extended for antisolvent precipitation of AP in an impinging jet reactor using water and n-butyl alcohol as a solvent and antisolvent, respectively for optimum performance. The performance was compared with the experiments in batch mode as well as and in a continuous capillary reactor. Over a range of inlet jet velocity that corresponded to 1792 \< Re \< 7193 for the saturated aqueous solution of AP and 1135 \< Re \< 4553 for the antisolvent butanol phase, 8.98-16.98 mu m Ammonium perchlorate particles were attained.

}, keywords = {Ammonium perchlorate, Antisolvent precipitation, CFD, continuous flow, Impinging jet reactor, microparticles}, issn = {1385-8947}, doi = {10.1016/j.cej.2019.03.107}, author = {Pal, Sayan and Madane, Ketan and Kulkarni, Amol A.} }