Liquid-Liquid Equilibrium for Cyclohexane + Benzene +N,N-Dimethylformamide + Potassium Thiocyanate at Temperature 298.15 K and Atmospheric Pressure

Autor: Lúcio Cardozo Filho, Stéphani Caroline Beneti, André Zuber, Stephanie Lenhare, Beatriz Fernanda Bonfim de Souza, A. F. Zanette, Stênio Cristaldo Heck
Přispěvatelé: State University of Maringá, Federal University of Technology—Paraná, Universidade Estadual Paulista (UNESP), Centro Universitário da Fundação de Ensino Octávio Bastos (UNIFEOB)
Jazyk: angličtina
Rok vydání: 2021
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Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2022-04-28T19:44:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-09-09 The liquid-liquid extraction is an important industrial separation process. It is suitable to separate components with close boiling points when common separation processes such as fractionated distillation are infeasible. The liquid-liquid equilibria of mixtures containing cyclohexane + benzene +N,N-dimethylformamide (DMF) + potassium thiocyanate (KSCN) were analyzed by experimental data obtained at 298.15 K and atmospheric pressure. The obtained experimental data presented good correlation with UNIQUAC and e-NRTL models. The effectiveness of associating KSCN to DMF was analyzed to improve the separation of aromatic and aliphatic hydrocarbons. The liquid-liquid equilibrium selectivity and distribution coefficients were evaluated, considering different KSCN proportions in the solvent. The results demonstrated that the selectivity coefficient increases as the salt mass increases in the mixture. On the other hand, the distribution coefficient decreases as the benzene concentration increases in the raffinate phase. Department of Chemical Engineering State University of Maringá Academic Department of Engineering Federal University of Technology—Paraná Department of Chemistry State University of Maringá Academic Department of Food and Chemical Engineering Federal University of Technology—Paraná Departament of Energy Engineering São Paulo State University (UNESP) Research Center Centro Universitário da Fundação de Ensino Octávio Bastos (UNIFEOB) Departament of Energy Engineering São Paulo State University (UNESP)
Databáze: OpenAIRE
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