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Article: Isoprene/methyl acrylate Diels - Alder reaction in supercritical carbon dioxide

TitleIsoprene/methyl acrylate Diels - Alder reaction in supercritical carbon dioxide
Authors
KeywordsArticle
Chemical Reaction
Pressure
Supercritical Fluid Extraction
Synthesis
Issue Date1999
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/iecr
Citation
Industrial and Engineering Chemistry Research, 1999, v. 38 n. 12, p. 4525-4530 How to Cite?
AbstractThe Diels - Alder reaction between isoprene and methyl acrylate was carried out in supercritical carbon dioxide in the temperature range 110-140°C and the pressure range 95.2-176.9 atm in a 300 cm3 autoclave. The high-pressure phase behavior of the reaction mixture in the vicinity of its critical region was determined in a mixed vessel with a sight window to ensure that all the experiments were performed in the supercritical single-phase region. Kinetic data were obtained at different temperatures, pressures, and reaction times. It was observed that in the vicinity of the critical point the reaction rate constant decreases with increasing pressure. It was also determined that the reaction selectivity does not change with operating conditions. Transition-state theory was used to explain the effect of pressure on reaction rate and product selectivity. Additional experiments were conducted at constant temperature but different phase behaviors (two-phase region, liquid phase, supercritical phase) by adjusting the initial composition and pressure. It was shown that the highest reaction rate is in the supercritical region.
Persistent Identifierhttp://hdl.handle.net/10722/90970
ISSN
2015 Impact Factor: 2.567
2015 SCImago Journal Rankings: 0.976
References

 

DC FieldValueLanguage
dc.contributor.authorLin, Ben_HK
dc.contributor.authorAkgerman, Aen_HK
dc.date.accessioned2010-09-17T10:11:06Z-
dc.date.available2010-09-17T10:11:06Z-
dc.date.issued1999en_HK
dc.identifier.citationIndustrial and Engineering Chemistry Research, 1999, v. 38 n. 12, p. 4525-4530en_HK
dc.identifier.issn0888-5885en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90970-
dc.description.abstractThe Diels - Alder reaction between isoprene and methyl acrylate was carried out in supercritical carbon dioxide in the temperature range 110-140°C and the pressure range 95.2-176.9 atm in a 300 cm3 autoclave. The high-pressure phase behavior of the reaction mixture in the vicinity of its critical region was determined in a mixed vessel with a sight window to ensure that all the experiments were performed in the supercritical single-phase region. Kinetic data were obtained at different temperatures, pressures, and reaction times. It was observed that in the vicinity of the critical point the reaction rate constant decreases with increasing pressure. It was also determined that the reaction selectivity does not change with operating conditions. Transition-state theory was used to explain the effect of pressure on reaction rate and product selectivity. Additional experiments were conducted at constant temperature but different phase behaviors (two-phase region, liquid phase, supercritical phase) by adjusting the initial composition and pressure. It was shown that the highest reaction rate is in the supercritical region.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/iecren_HK
dc.relation.ispartofIndustrial and Engineering Chemistry Researchen_HK
dc.subjectArticleen_HK
dc.subjectChemical Reactionen_HK
dc.subjectPressureen_HK
dc.subjectSupercritical Fluid Extractionen_HK
dc.subjectSynthesisen_HK
dc.titleIsoprene/methyl acrylate Diels - Alder reaction in supercritical carbon dioxideen_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0033404175en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033404175&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume38en_HK
dc.identifier.issue12en_HK
dc.identifier.spage4525en_HK
dc.identifier.epage4530en_HK

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