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

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 differe...

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Main Author: Lie-Ding Shiau
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/12/5/709
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author Lie-Ding Shiau
author_facet Lie-Ding Shiau
author_sort Lie-Ding Shiau
collection DOAJ
description 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.
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spelling doaj.art-dff6ae38eb3b43bb86f322cb519e38a62023-11-23T10:35:52ZengMDPI AGCrystals2073-43522022-05-0112570910.3390/cryst12050709The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt CrystallizationLie-Ding Shiau0Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, TaiwanThe 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.https://www.mdpi.com/2073-4352/12/5/709crystallizationgrowth rateseparationacrylic acid
spellingShingle Lie-Ding Shiau
The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization
Crystals
crystallization
growth rate
separation
acrylic acid
title The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization
title_full The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization
title_fullStr The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization
title_full_unstemmed The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization
title_short The Correlation for Effective Distribution Coefficient with Initial Impurity Concentration and Growth Rate for Acrylic Acid in Melt Crystallization
title_sort correlation for effective distribution coefficient with initial impurity concentration and growth rate for acrylic acid in melt crystallization
topic crystallization
growth rate
separation
acrylic acid
url https://www.mdpi.com/2073-4352/12/5/709
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