Separation of potassium clavulanate and potassium chloride by nanofiltration Transport and evaluation of membranes

dc.creatorCarvalho, AL
dc.creatorMaugeri, F
dc.creatorPradanos, P
dc.creatorSilva, V
dc.creatorHernandez, A
dc.date2011
dc.date42309
dc.date2014-07-31T14:35:06Z
dc.date2015-11-26T17:38:56Z
dc.date2014-07-31T14:35:06Z
dc.date2015-11-26T17:38:56Z
dc.date.accessioned2018-03-29T00:20:36Z
dc.date.available2018-03-29T00:20:36Z
dc.identifierSeparation And Purification Technology. Elsevier Science Bv, v. 83, n. 23, n. 30, 2011.
dc.identifier1383-5866
dc.identifierWOS:000297444900004
dc.identifier10.1016/j.seppur.2011.07.019
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75638
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75638
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1286346
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionIn this work, four commercial nanoporous membranes (NF and NF90 from Filmtec (TM), and NP010 and NP030 from Microdyn Nadir) have been characterized and evaluated in order to use them to separate potassium clavulanate and potassium chloride. Their charge density has been investigated by Tangential Streaming Potential measurements for several concentrations of KCl and pH. The isoelectric point of the membranes has been found to be between pH 5.0 and 6.0. Their rejection for KCl has also been measured and the corresponding concentration polarization effect has been taken into account. Nanofiltration modeling, that considers the steric, electric and dielectric exclusion and the charge variation along the pores (SEDE-VCh model), satisfactorily describes the retention of KCl by using the dielectric constant inside the pores, epsilon(p), as the only fitting parameter. Although all the studied membranes are highly retentive for the potassium clavulanate, KCA, the most suitable membranes for KCA purification, attending to the KCl/KCA selectivity are NF or NF90 membranes at all pH. Lower pH values give higher selectivity for all the membranes. (C) 2011 Elsevier B.V. All rights reserved.
dc.description83
dc.description23
dc.description30
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionSpanish Ministerio de Ciencia e Innovacion (MCINN) [CTQ2009-07666, MAT2008-00619]
dc.descriptionGrupos de Excelencia [GR18]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionSpanish Ministerio de Ciencia e Innovacion (MCINN) [CTQ2009-07666, MAT2008-00619]
dc.descriptionGrupos de Excelencia [GR18]
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationSeparation And Purification Technology
dc.relationSep. Purif. Technol.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectNanofiltration
dc.subjectMembrane characterization
dc.subjectZeta potential
dc.subjectSEDE-VCh model
dc.subjectPotassium clavulanate
dc.subjectSurface-charge-density
dc.subjectConcentration Polarization
dc.subjectUltrafiltration Membranes
dc.subjectAqueous-solution
dc.subjectBlack Liquor
dc.subjectAcid
dc.subjectOsmosis
dc.subjectOptimization
dc.subjectPerformance
dc.subjectRetention
dc.titleSeparation of potassium clavulanate and potassium chloride by nanofiltration Transport and evaluation of membranes
dc.typeArtículos de revistas


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