Effects of Habit Modifier and Crystallization Speed on Composite Morphology in Atomizing Crystallization

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  • Deki Yuto
    Department of Chemical Engineering and Materials Science, Doshisha University
  • Kadota Kazunori
    Osaka University of Pharmaceutical Sciences
  • Shimosaka Atsuko
    Department of Chemical Engineering and Materials Science, Doshisha University
  • Shirakawa Yoshiyuki
    Department of Chemical Engineering and Materials Science, Doshisha University

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  • 噴霧晶析法における結晶化速度と媒晶剤が複合形態に与える影響
  • フンムショウセキホウ ニ オケル ケッショウカ ソクド ト バイショウザイ ガ フクゴウ ケイタイ ニ アタエル エイキョウ

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In composite particle production processes, simplification of process and composite morphology control are technical problems. In this study, NaCl-amino acid composite particles were prepared by atomizing crystallization method for the purpose of achievement of problems. The obtained composite particle had different composite morphology, such as distributed type and a surface-covering type for different combinations of solute materials. The morphology variation of the composite particles depends on the difference in crystallization rate and a habit modifier effect. As a result of calculating the solubility curve of pure solute into water, it turned out that the crystallization speed of sodium chloride was larger than amino acid. The distribution ratio of the water of sodium chloride is smaller than amino acid. It supports to be easy to dehydration.

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