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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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/5/709 |
| _version_ | 1827669513690152960 |
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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. |
| first_indexed | 2024-03-10T03:05:14Z |
| format | Article |
| id | doaj.art-dff6ae38eb3b43bb86f322cb519e38a6 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T03:05:14Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| 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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