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On the solubility of three disperse anthraquinone dyes in supercritical carbon dioxide: new experimental data and correlation

2011-04-20Journal article Open access
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dc.contributor.authorCoelho, Jose
dc.contributor.authorPalavra, António F.
dc.contributor.authorStateva, Roumiana P.
dc.date.accessioned2013-02-16T16:51:20Z
dc.date.available2013-02-16T16:51:20Z
dc.date.issued2011-04-20
dc.description.abstractSolubility measurements of quinizarin. (1,4-dihydroxyanthraquinone), disperse red 9 (1-(methylamino) anthraquinone), and disperse blue 14 (1,4-bis(methylamino)anthraquinone) in supercritical carbon dioxide (SC CO2) were carried out in a flow type apparatus, at a temperature range from (333.2 to 393.2) K and at pressures from (12.0 to 40.0) MPa. Mole fraction solubility of the three dyes decreases in the order quinizarin (2.9 x 10(-6) to 2.9.10(-4)), red 9 (1.4 x 10(-6) to 3.2 x 10(-4)), and blue 14 (7.8 x 10(-8) to 2.2 x 10(-5)). Four semiempirical density based models were used to correlatethe solubility of the dyes in the SC CO2. From the correlation results, the total heat of reaction, heat of vaporization plus the heat of solvation of the solute, were calculated and compared with the results presented in the literature. The solubilities of the three dyes were correlated also applying the Soave-Redlich-Kwong cubic equation of state (SRK CEoS) with classical mixing rules, and the physical properties required for the modeling were estimated and reported.por
dc.identifier.citationCOELHO, José P.; MENDONÇA, Andrea F.; PALAVRA, Antonio F.; STATEVA, Roumiana P. - On the Solubility of Three Disperse Anthraquinone Dyes in Supercritical Carbon Dioxide: New Experimental Data and Correlation. Industrial & Engineering Chemistry Research. ISSN 0888-5885. Vol. 50, n.º8 (2011) p. 4618-4624.por
dc.identifier.issn0888-5885
dc.identifier.urihttp://hdl.handle.net/10400.21/2224
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmer Chemical SOCpor
dc.subjectEquation-of-statepor
dc.subjectAzo dyespor
dc.subjectSolidspor
dc.subjectFluidspor
dc.subjectDerivativespor
dc.subjectPredictionpor
dc.subjectLiquidspor
dc.subjectDensitypor
dc.subjectMPApor
dc.titleOn the solubility of three disperse anthraquinone dyes in supercritical carbon dioxide: new experimental data and correlationpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceWashingtonpor
oaire.citation.endPage4624por
oaire.citation.issue8por
oaire.citation.startPage4618por
oaire.citation.titleIndustrial & Engineering Chemistry Researchpor
oaire.citation.volume50por
person.familyNameCoelho
person.givenNameJose
person.identifierR-000-84M
person.identifier.ciencia-idD716-31DF-8371
person.identifier.orcid0000-0001-8118-0864
person.identifier.ridG-2626-2011
person.identifier.scopus-author-id7101841005
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationec13b922-f442-44fa-bb07-7c2e0bebbe6d
relation.isAuthorOfPublication.latestForDiscoveryec13b922-f442-44fa-bb07-7c2e0bebbe6d

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