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Volume 12
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10.3390/cryst12050709
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Article

The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization

by
Lie-Ding Shiau
1,2
1
Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, Taiwan
2
Department of Urology, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
Crystals 2022, 12(5), 709; https://doi.org/10.3390/cryst12050709
Submission received: 28 April 2022 / Revised: 12 May 2022 / Accepted: 13 May 2022 / Published: 16 May 2022
(This article belongs to the Special Issue Heat and Mass Transfer Modeling in Crystal Growth)
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Abstract

The layer growth rates and resulting crystal purity during solid-layer melt crystallization were experimentally measured for acrylic acid (AA) with impurity propionic acid (PA) operated at various cooling temperatures. A power law was adopted to correlate the growth rate with the temperature difference between melt and coolant. The effective distribution coefficient was determined from the resulting crystal purity for each condition. An empirical equation modified from the analytical solution for the mass transfer boundary layer was proposed in this work to relate the effective distribution coefficient to the initial impurity concentration and growth rate.
Keywords: crystallization; growth rate; separation; acrylic acid crystallization; growth rate; separation; acrylic acid

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MDPI and ACS Style

Shiau, L.-D. The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization. Crystals 2022, 12, 709. https://doi.org/10.3390/cryst12050709

AMA Style

Shiau L-D. The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization. Crystals. 2022; 12(5):709. https://doi.org/10.3390/cryst12050709

Chicago/Turabian Style

Shiau, Lie-Ding. 2022. "The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization" Crystals 12, no. 5: 709. https://doi.org/10.3390/cryst12050709

APA Style

Shiau, L.-D. (2022). The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization. Crystals, 12(5), 709. https://doi.org/10.3390/cryst12050709

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