Measuring the amount of crystallinity in solutions using DSC
The amount of solid that forms in a solution at temperatures below the cloud point, is an important quantity in the design of crystallisation processes. A new method using differential scanning calorimetry (DSC) to measure the fraction of crystallised solution, α solutionS ' is proposed. A very...
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Veröffentlicht in: | Canadian journal of chemical engineering 1997-12, Vol.75 (6), p.1075-1079 |
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creator | Coutinho, João A. P. Calange, Sandra Ruffier-Meray, Veronique |
description | The amount of solid that forms in a solution at temperatures below the cloud point, is an important quantity in the design of crystallisation processes. A new method using differential scanning calorimetry (DSC) to measure the fraction of crystallised solution, α solutionS ' is proposed. A very good agreement is obtained between the data measured by the new calorimetric method and using alternative techniques. A simple graphic version of the calculation procedure is also presented. It is shown to produce quick and fair estimates for the solid fraction by a simple analysis of a plot of enthalpy variation with temperature.
La quantité de solides qui se forme dans une solution à des températures au‐dessous du point de trouble est un facteur important dans la conception des procédes de cristallisation. On propose une nouvelle méthode utilisant la calorimétrie différentielle à balayage (DSC) afin de mesurer la fraction de solution cristallisée, α solutionS' Un très bon accord est obtenu entre les données mesurées par la nouvelle méthode calorimétrique et d'autres techniques utilisées. On version graphique simple de la procédure de calcul est également présentée. On montre qu'elle peut produire des estimations rapides et fiabies pour la fraction de solides par simple analyse d'un tracé de variation d'enthaipie avec la température. |
doi_str_mv | 10.1002/cjce.5450750610 |
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La quantité de solides qui se forme dans une solution à des températures au‐dessous du point de trouble est un facteur important dans la conception des procédes de cristallisation. On propose une nouvelle méthode utilisant la calorimétrie différentielle à balayage (DSC) afin de mesurer la fraction de solution cristallisée, α solutionS' Un très bon accord est obtenu entre les données mesurées par la nouvelle méthode calorimétrique et d'autres techniques utilisées. On version graphique simple de la procédure de calcul est également présentée. On montre qu'elle peut produire des estimations rapides et fiabies pour la fraction de solides par simple analyse d'un tracé de variation d'enthaipie avec la température.</description><identifier>ISSN: 0008-4034</identifier><identifier>EISSN: 1939-019X</identifier><identifier>DOI: 10.1002/cjce.5450750610</identifier><identifier>CODEN: CJCEA7</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Applied sciences ; calorimetry ; Chemical engineering ; Chemistry ; crystallisation ; Crystallization, leaching, miscellaneous separations ; DSC ; Exact sciences and technology ; General and physical chemistry ; Liquid-solid equilibria ; Phase equilibria ; solid-liquid equilibrium</subject><ispartof>Canadian journal of chemical engineering, 1997-12, Vol.75 (6), p.1075-1079</ispartof><rights>Copyright © 1997 Canadian Society for Chemical Engineering</rights><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4360-d966c1c5777bd48521d0f2ba3ce92916486a851ec5a9066c201f494ae196db823</citedby><cites>FETCH-LOGICAL-c4360-d966c1c5777bd48521d0f2ba3ce92916486a851ec5a9066c201f494ae196db823</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fcjce.5450750610$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fcjce.5450750610$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27903,27904,45553,45554</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2151141$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Coutinho, João A. P.</creatorcontrib><creatorcontrib>Calange, Sandra</creatorcontrib><creatorcontrib>Ruffier-Meray, Veronique</creatorcontrib><title>Measuring the amount of crystallinity in solutions using DSC</title><title>Canadian journal of chemical engineering</title><addtitle>Can. J. Chem. Eng</addtitle><description>The amount of solid that forms in a solution at temperatures below the cloud point, is an important quantity in the design of crystallisation processes. A new method using differential scanning calorimetry (DSC) to measure the fraction of crystallised solution, α solutionS ' is proposed. A very good agreement is obtained between the data measured by the new calorimetric method and using alternative techniques. A simple graphic version of the calculation procedure is also presented. It is shown to produce quick and fair estimates for the solid fraction by a simple analysis of a plot of enthalpy variation with temperature.
La quantité de solides qui se forme dans une solution à des températures au‐dessous du point de trouble est un facteur important dans la conception des procédes de cristallisation. On propose une nouvelle méthode utilisant la calorimétrie différentielle à balayage (DSC) afin de mesurer la fraction de solution cristallisée, α solutionS' Un très bon accord est obtenu entre les données mesurées par la nouvelle méthode calorimétrique et d'autres techniques utilisées. On version graphique simple de la procédure de calcul est également présentée. On montre qu'elle peut produire des estimations rapides et fiabies pour la fraction de solides par simple analyse d'un tracé de variation d'enthaipie avec la température.</description><subject>Applied sciences</subject><subject>calorimetry</subject><subject>Chemical engineering</subject><subject>Chemistry</subject><subject>crystallisation</subject><subject>Crystallization, leaching, miscellaneous separations</subject><subject>DSC</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Liquid-solid equilibria</subject><subject>Phase equilibria</subject><subject>solid-liquid equilibrium</subject><issn>0008-4034</issn><issn>1939-019X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqFj8FLwzAUxoMoOKdnrz147fZemrQNepE6N2VOwcm8hSxLNbNrR9Oi_e_tqEw8eXp88Pt9j4-Qc4QBAtChXmsz4IxDxCFEOCA9FIHwAcXrIekBQOwzCNgxOXFu3UYKDHvk6sEoV5c2f_Oqd-OpTVHnlVekni4bV6kss7mtGs_mniuyurJF7rza7fCb5-SUHKUqc-bs5_bJy-1onkz86eP4Lrme-poFIfgrEYYaNY-iaLliMae4gpQuVaCNoAJDFocq5mg0VwJalAKmTDBlUISrZUyDPhl2vbosnCtNKrel3aiykQhyN17uxsvf8a1x0Rlb5bTK0lLl2rq9RpEjMmyxyw77tJlp_muVyX0y-vPE72zrKvO1t1X5IcMoiLhczMbyab6YThIRy1nwDWsmebs</recordid><startdate>199712</startdate><enddate>199712</enddate><creator>Coutinho, João A. P.</creator><creator>Calange, Sandra</creator><creator>Ruffier-Meray, Veronique</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>199712</creationdate><title>Measuring the amount of crystallinity in solutions using DSC</title><author>Coutinho, João A. P. ; Calange, Sandra ; Ruffier-Meray, Veronique</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4360-d966c1c5777bd48521d0f2ba3ce92916486a851ec5a9066c201f494ae196db823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Applied sciences</topic><topic>calorimetry</topic><topic>Chemical engineering</topic><topic>Chemistry</topic><topic>crystallisation</topic><topic>Crystallization, leaching, miscellaneous separations</topic><topic>DSC</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Liquid-solid equilibria</topic><topic>Phase equilibria</topic><topic>solid-liquid equilibrium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Coutinho, João A. P.</creatorcontrib><creatorcontrib>Calange, Sandra</creatorcontrib><creatorcontrib>Ruffier-Meray, Veronique</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Canadian journal of chemical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Coutinho, João A. P.</au><au>Calange, Sandra</au><au>Ruffier-Meray, Veronique</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measuring the amount of crystallinity in solutions using DSC</atitle><jtitle>Canadian journal of chemical engineering</jtitle><addtitle>Can. J. Chem. Eng</addtitle><date>1997-12</date><risdate>1997</risdate><volume>75</volume><issue>6</issue><spage>1075</spage><epage>1079</epage><pages>1075-1079</pages><issn>0008-4034</issn><eissn>1939-019X</eissn><coden>CJCEA7</coden><abstract>The amount of solid that forms in a solution at temperatures below the cloud point, is an important quantity in the design of crystallisation processes. A new method using differential scanning calorimetry (DSC) to measure the fraction of crystallised solution, α solutionS ' is proposed. A very good agreement is obtained between the data measured by the new calorimetric method and using alternative techniques. A simple graphic version of the calculation procedure is also presented. It is shown to produce quick and fair estimates for the solid fraction by a simple analysis of a plot of enthalpy variation with temperature.
La quantité de solides qui se forme dans une solution à des températures au‐dessous du point de trouble est un facteur important dans la conception des procédes de cristallisation. On propose une nouvelle méthode utilisant la calorimétrie différentielle à balayage (DSC) afin de mesurer la fraction de solution cristallisée, α solutionS' Un très bon accord est obtenu entre les données mesurées par la nouvelle méthode calorimétrique et d'autres techniques utilisées. On version graphique simple de la procédure de calcul est également présentée. On montre qu'elle peut produire des estimations rapides et fiabies pour la fraction de solides par simple analyse d'un tracé de variation d'enthaipie avec la température.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/cjce.5450750610</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Applied sciences calorimetry Chemical engineering Chemistry crystallisation Crystallization, leaching, miscellaneous separations DSC Exact sciences and technology General and physical chemistry Liquid-solid equilibria Phase equilibria solid-liquid equilibrium |
title | Measuring the amount of crystallinity in solutions using DSC |
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