Demixing kinetics of phase systems employed for liquid–liquid extraction and correlation with system properties
▶ Kinetics of phase demixing is studied for model systems. ▶ Phase demixing kinetics is useful for the design of gravity separators. ▶ High phase composition and low phase volume ratios (
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| Veröffentlicht in: | Food and bioproducts processing 2011-10, Vol.89 (4), p.251-256 |
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| container_title | Food and bioproducts processing |
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| creator | Narayan, A.V. Madhusudhan, M.C. Raghavarao, K.S.M.S. |
| description | ▶ Kinetics of phase demixing is studied for model systems. ▶ Phase demixing kinetics is useful for the design of gravity separators. ▶ High phase composition and low phase volume ratios ( |
| doi_str_mv | 10.1016/j.fbp.2010.11.014 |
| format | Article |
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The kinetics of phase demixing in liquid–liquid extraction for model systems comprising PEG 4000/potassium phosphate and t-butanol/ammonium sulfate was studied. The kinetics of demixing depicts the entire demixing pattern of phases of the phase system during and after extraction and hence the study is essential prior to design of large scale gravity phase separators. With an increase in composition, both the systems showed increase in demixing rate (decrease in demixing time). At high tie line length (TLL) and phase volume ratio <1, with salt rich phase as continuous phase, both PEG 4000/potassium phosphate and t-butanol/ammonium sulfate systems showed reduction in demixing time by 59% and 50%, respectively as compared to that at low TLL. An empirical equation proposed in the literature for rate of phase demixing was used to correlate the experimental data. The agreement was better for t-butanol/ammonium sulfate system when compared to PEG 4000/potassium phosphate system.</description><identifier>ISSN: 0960-3085</identifier><identifier>EISSN: 1744-3571</identifier><identifier>DOI: 10.1016/j.fbp.2010.11.014</identifier><language>eng</language><publisher>Rugby: Elsevier B.V</publisher><subject>Ammonium sulfates ; Aqueous two phase system ; Aqueous-organic system ; Biological and medical sciences ; Correlation ; Demixing ; Design engineering ; Empirical equations ; Food industries ; Foods ; Fundamental and applied biological sciences. Psychology ; Interfacial tension ; Liquid-liquid extraction ; Potassium phosphates ; Three phase partitioning ; Tie line length</subject><ispartof>Food and bioproducts processing, 2011-10, Vol.89 (4), p.251-256</ispartof><rights>2010 The Institution of Chemical Engineers</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c429t-37387d7d3c3555287cfc4ad7ace8674f230dd9a26566271846adff771a315f9e3</citedby><cites>FETCH-LOGICAL-c429t-37387d7d3c3555287cfc4ad7ace8674f230dd9a26566271846adff771a315f9e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0960308510001422$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24723928$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Narayan, A.V.</creatorcontrib><creatorcontrib>Madhusudhan, M.C.</creatorcontrib><creatorcontrib>Raghavarao, K.S.M.S.</creatorcontrib><title>Demixing kinetics of phase systems employed for liquid–liquid extraction and correlation with system properties</title><title>Food and bioproducts processing</title><description>▶ Kinetics of phase demixing is studied for model systems. ▶ Phase demixing kinetics is useful for the design of gravity separators. ▶ High phase composition and low phase volume ratios (<1) are favorable for faster separation. ▶ Empherical equations reported in literature could predict the phase demixing kinetics very well. ▶ Phase demixing kinetics of model systems can be extrapolated to that of extraction of biomolecules.
The kinetics of phase demixing in liquid–liquid extraction for model systems comprising PEG 4000/potassium phosphate and t-butanol/ammonium sulfate was studied. The kinetics of demixing depicts the entire demixing pattern of phases of the phase system during and after extraction and hence the study is essential prior to design of large scale gravity phase separators. With an increase in composition, both the systems showed increase in demixing rate (decrease in demixing time). At high tie line length (TLL) and phase volume ratio <1, with salt rich phase as continuous phase, both PEG 4000/potassium phosphate and t-butanol/ammonium sulfate systems showed reduction in demixing time by 59% and 50%, respectively as compared to that at low TLL. An empirical equation proposed in the literature for rate of phase demixing was used to correlate the experimental data. The agreement was better for t-butanol/ammonium sulfate system when compared to PEG 4000/potassium phosphate system.</description><subject>Ammonium sulfates</subject><subject>Aqueous two phase system</subject><subject>Aqueous-organic system</subject><subject>Biological and medical sciences</subject><subject>Correlation</subject><subject>Demixing</subject><subject>Design engineering</subject><subject>Empirical equations</subject><subject>Food industries</subject><subject>Foods</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Interfacial tension</subject><subject>Liquid-liquid extraction</subject><subject>Potassium phosphates</subject><subject>Three phase partitioning</subject><subject>Tie line length</subject><issn>0960-3085</issn><issn>1744-3571</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kU1uFDEQhVuISAyBA7DzBsGmB5d_u8UKBQhIkbIJa8vYZeKhu91je0hmlztwQ05CDzNimVVVSd97T6rXNK-AroGCerdZh-_zmtHDDWsK4kmzAi1Ey6WGp82K9oq2nHbyWfO8lA2lFDqQq2b7Ecd4H6cf5GecsEZXSApkvrUFSdmXimMhOM5D2qMnIWUyxO0u-j8Pv48LwfuarasxTcROnriUMw72330X6-3JhMw5zZhrxPKiOQt2KPjyNM-bb58_3Vx8aa-uL79efLhqnWB9bbnmnfbac8ellKzTLjhhvbYOO6VFYJx631umpFJMQyeU9SFoDZaDDD3y8-bN0XeJ3u6wVDPG4nAY7IRpV0xPhehByH4h3z5KgtLAlO7ZAYUj6nIqJWMwc46jzXsD1ByKMBuzFGEORRgAsxSxaF6f7G1xdgjZTi6W_0ImNOM96xbu_ZHD5Su_ImZTXMTJoY8ZXTU-xUdS_gKodqCD</recordid><startdate>20111001</startdate><enddate>20111001</enddate><creator>Narayan, A.V.</creator><creator>Madhusudhan, M.C.</creator><creator>Raghavarao, K.S.M.S.</creator><general>Elsevier B.V</general><general>Institution of Chemical Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>7QO</scope><scope>P64</scope></search><sort><creationdate>20111001</creationdate><title>Demixing kinetics of phase systems employed for liquid–liquid extraction and correlation with system properties</title><author>Narayan, A.V. ; Madhusudhan, M.C. ; Raghavarao, K.S.M.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c429t-37387d7d3c3555287cfc4ad7ace8674f230dd9a26566271846adff771a315f9e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Ammonium sulfates</topic><topic>Aqueous two phase system</topic><topic>Aqueous-organic system</topic><topic>Biological and medical sciences</topic><topic>Correlation</topic><topic>Demixing</topic><topic>Design engineering</topic><topic>Empirical equations</topic><topic>Food industries</topic><topic>Foods</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Interfacial tension</topic><topic>Liquid-liquid extraction</topic><topic>Potassium phosphates</topic><topic>Three phase partitioning</topic><topic>Tie line length</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Narayan, A.V.</creatorcontrib><creatorcontrib>Madhusudhan, M.C.</creatorcontrib><creatorcontrib>Raghavarao, K.S.M.S.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Biotechnology Research Abstracts</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Food and bioproducts processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Narayan, A.V.</au><au>Madhusudhan, M.C.</au><au>Raghavarao, K.S.M.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Demixing kinetics of phase systems employed for liquid–liquid extraction and correlation with system properties</atitle><jtitle>Food and bioproducts processing</jtitle><date>2011-10-01</date><risdate>2011</risdate><volume>89</volume><issue>4</issue><spage>251</spage><epage>256</epage><pages>251-256</pages><issn>0960-3085</issn><eissn>1744-3571</eissn><abstract>▶ Kinetics of phase demixing is studied for model systems. ▶ Phase demixing kinetics is useful for the design of gravity separators. ▶ High phase composition and low phase volume ratios (<1) are favorable for faster separation. ▶ Empherical equations reported in literature could predict the phase demixing kinetics very well. ▶ Phase demixing kinetics of model systems can be extrapolated to that of extraction of biomolecules.
The kinetics of phase demixing in liquid–liquid extraction for model systems comprising PEG 4000/potassium phosphate and t-butanol/ammonium sulfate was studied. The kinetics of demixing depicts the entire demixing pattern of phases of the phase system during and after extraction and hence the study is essential prior to design of large scale gravity phase separators. With an increase in composition, both the systems showed increase in demixing rate (decrease in demixing time). At high tie line length (TLL) and phase volume ratio <1, with salt rich phase as continuous phase, both PEG 4000/potassium phosphate and t-butanol/ammonium sulfate systems showed reduction in demixing time by 59% and 50%, respectively as compared to that at low TLL. An empirical equation proposed in the literature for rate of phase demixing was used to correlate the experimental data. The agreement was better for t-butanol/ammonium sulfate system when compared to PEG 4000/potassium phosphate system.</abstract><cop>Rugby</cop><pub>Elsevier B.V</pub><doi>10.1016/j.fbp.2010.11.014</doi><tpages>6</tpages></addata></record> |
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| ispartof | Food and bioproducts processing, 2011-10, Vol.89 (4), p.251-256 |
| issn | 0960-3085 1744-3571 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Ammonium sulfates Aqueous two phase system Aqueous-organic system Biological and medical sciences Correlation Demixing Design engineering Empirical equations Food industries Foods Fundamental and applied biological sciences. Psychology Interfacial tension Liquid-liquid extraction Potassium phosphates Three phase partitioning Tie line length |
| title | Demixing kinetics of phase systems employed for liquid–liquid extraction and correlation with system properties |
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