Catalytic Transformation of Triglycerides to Biodiesel with SiO2-SO3 H and Quaternary Ammonium Salts in Toluene or DMSO

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Autor(es): dc.contributorUniversidade Federal de Viçosa (UFV)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorCiência e Tecnologia de Mato Grosso—IFMT—Campus Cuiabá-
Autor(es): dc.contributorCentro Universitário SENAI-CIMATEC-
Autor(es): dc.contributorUniversidade Federal de Minas Gerais (UFMG)-
Autor(es): dc.creatorBarbosa, Sandro L.-
Autor(es): dc.creatorRocha, Adeline C. Pereira-
Autor(es): dc.creatorNelson, David Lee-
Autor(es): dc.creatorde Freitas, Milton S.-
Autor(es): dc.creatorMestre, Antônio A. P. Fulgêncio-
Autor(es): dc.creatorKlein, Stanlei I.-
Autor(es): dc.creatorClososki, Giuliano C.-
Autor(es): dc.creatorCaires, Franco J.-
Autor(es): dc.creatorFlumignan, Danilo L.-
Autor(es): dc.creatorDos Santos, Letícia Karen-
Autor(es): dc.creatorWentz, Alexandre P.-
Autor(es): dc.creatorPasa, Vânya M. Duarte-
Autor(es): dc.creatorRios, Regiane D. Fernandes-
Data de aceite: dc.date.accessioned2025-08-21T22:22:44Z-
Data de disponibilização: dc.date.available2025-08-21T22:22:44Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/molecules27030953-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230281-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230281-
Descrição: dc.descriptionSiO2-SO3 H, with a surface area of 115 m2·g−1, pore volumes of 0.38 cm3·g−1 and 1.32 mmol H+ /g, was used as a transesterification catalyst. Triglycerides of waste cooking oil reacted with methanol in refluxing toluene to yield mixtures of diglycerides, monoglycerides and fatty acid methyl esters (FAMEs) in the presence of 20% (w/w) catalyst/oil using the hydrophilic sulfonated silica (SiO2-SO3 H) catalyst alone or with the addition of 10% (w/w) co-catalyst/oil [(Bun 4N)(BF4) or Aliquat 336]. The addition of the ammonium salts to the catalyst lead to a decrease in the amounts of diglycerides in the products, but the concentrations of monoglycerides increased. Mixtures of (Bun 4N)(BF4)/catalyst were superior to catalyst alone or Aliquat 336/catalyst for promoting the production of mixtures with high concentrations of FAMEs. The same experiments were repeated using DMSO as the solvent. The use of the more polar solvent resulted in excellent conversion of the triglycerides to FAME esters with all three-catalyst media. A simplified mechanism is presented to account for the experimental results.-
Descrição: dc.descriptionDepartment of Pharmacy Universidade Federal dos Vales do Jequitinhonha e Mucuri—UFVJM, R. da Glória, 187-
Descrição: dc.descriptionDepartment of General and Inorganic Chemistry Institute of Chemistry São Paulo State University—UNESP, R. Prof. Francisco Degni 55, Quitandinha-
Descrição: dc.descriptionDepartment of Physics and Chemistry Faculdade de Ciências Farmacêuticas de Ribeirão Preto São Paulo University—USP, Av. do Café s/n-
Descrição: dc.descriptionInstituto Federal de Educação Ciência e Tecnologia de Mato Grosso—IFMT—Campus Cuiabá Departamento das Áreas de Base Comum (DABC), Rua Profa. Zulmira Canavarros, 95-
Descrição: dc.descriptionInstitute of Chemistry Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives—CEMPEQC São Paulo State University (UNESP)-
Descrição: dc.descriptionCentro Universitário SENAI-CIMATEC, Av. Orlando Gomes, 1845-
Descrição: dc.descriptionLaboratório de Ensaios de Combustíveis Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627-Belo Horizonte-
Descrição: dc.descriptionDepartment of General and Inorganic Chemistry Institute of Chemistry São Paulo State University—UNESP, R. Prof. Francisco Degni 55, Quitandinha-
Descrição: dc.descriptionInstitute of Chemistry Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives—CEMPEQC São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationMolecules-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAliquat 336-
Palavras-chave: dc.subjectFatty acid methyl esters-
Palavras-chave: dc.subjectHydrophilic sulfonated silica catalyst-
Palavras-chave: dc.subjectTetrabutylammonium tetrafluoroborate-
Palavras-chave: dc.subjectTransesterification-
Título: dc.titleCatalytic Transformation of Triglycerides to Biodiesel with SiO2-SO3 H and Quaternary Ammonium Salts in Toluene or DMSO-
Tipo de arquivo: dc.typelivro digital-
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