Continuous cocrystallization of benzoic acid and isonicotinamide by mixing-induced supersaturation : exploring opportunities between reactive and antisolvent crystallization concepts

Svoboda, Vaclav and MacFhionnghaile, Pól and McGinty, John and Connor, Lauren E. and Oswald, Iain D. H. and Sefcik, Jan (2017) Continuous cocrystallization of benzoic acid and isonicotinamide by mixing-induced supersaturation : exploring opportunities between reactive and antisolvent crystallization concepts. Crystal Growth and Design, 17 (4). pp. 1902-1909. ISSN 1528-7483 (https://doi.org/10.1021/acs.cgd.6b01866)

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Abstract

This study combines reactive and antisolvent crystallization concepts via mixing-induced supersaturation to demonstrate a wider range of options for solvent system selection in multicomponent crystallization. This approach was applied to investigate continuous crystallization of 1:1 and 2:1 cocrystals of benzoic acid and isonicotinamide. Design of Experiments was used to identify conditions where pure cocrystal phases are obtained and a continuous mixing-induced cocrystallization process was implemented to selectively produce either 1:1 or 2:1 cocrystals.