Measuring secondary nucleation through single crystal seeding
Briuglia, Maria L. and Sefcik, Jan and Horst, Joop H. ter (2019) Measuring secondary nucleation through single crystal seeding. Crystal Growth and Design, 19 (1). pp. 421-429. ISSN 1528-7483 (https://doi.org/10.1021/acs.cgd.8b01515)
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Abstract
This article presents a novel assessment method for secondary nucleation rates using a well-controlled, small scale seeding procedure. The procedure comprises the seeding of a well-monitored, stirred, supersaturated solution by a carefully selected single crystal under conditions at which spontaneous nucleation does not occur. The determined number of particles in time were translated to a suspension density using a calibration performed with monodisperse polymer spheres. The increasing crystal suspension density in time subsequently allowed the determination of the secondary nucleation rate under very specific conditions of supersaturation and temperature. The secondary nucleation rate was measured as a function of seed crystal size and supersaturation. It was observed that the time elapsed between the moment a single seed crystal is added and the moment the suspension density started to increase is larger when the seeded crystals are smaller and the supersaturation is lower. A systematic study of secondary nucleation at different supersaturations led to the determination of a supersaturation threshold for secondary nucleation, which could be used in industrial crystallization process design to identify process conditions with the right secondary nucleation rate behavior.
ORCID iDs
Briuglia, Maria L. ORCID: https://orcid.org/0000-0002-1737-0767, Sefcik, Jan ORCID: https://orcid.org/0000-0002-7181-5122 and Horst, Joop H. ter ORCID: https://orcid.org/0000-0003-0118-2160;-
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Item type: Article ID code: 66874 Dates: DateEvent2 January 2019Published20 November 2018Published Online20 November 2018AcceptedSubjects: Science > Chemistry
Technology > Chemical engineeringDepartment: Faculty of Engineering > Chemical and Process Engineering
Faculty of Science > Strathclyde Institute of Pharmacy and Biomedical SciencesDepositing user: Pure Administrator Date deposited: 08 Feb 2019 13:13 Last modified: 22 Nov 2024 01:14 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/66874