Antisolvent based precipitation: batch, capillary flow reactor and impinging jet reactor

TitleAntisolvent based precipitation: batch, capillary flow reactor and impinging jet reactor
Publication TypeJournal Article
Year of Publication2019
AuthorsPal, S, Madane, K, Kulkarni, AA
JournalChemical Engineering Journal
Date PublishedAUG
Type of ArticleArticle
KeywordsAmmonium perchlorate, Antisolvent precipitation, CFD, continuous flow, Impinging jet reactor, microparticles

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.

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Divison category: 
Chemical Engineering & Process Development