Greener Epoxidation Reaction of Macaw Palm Oil Using Metal Oxides and Niobium Phosphate as Catalysts

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAlarcon, Rafael T.-
Autor(es): dc.creatorBannach, Gilbert-
Autor(es): dc.creatorCavalheiro, Éder Tadeu G.-
Data de aceite: dc.date.accessioned2025-08-21T19:18:51Z-
Data de disponibilização: dc.date.available2025-08-21T19:18:51Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.21577/0103-5053.20240068-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/297507-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/297507-
Descrição: dc.descriptionThe present work focused on the screening process of different inorganic oxides and different temperatures for the epoxidation reaction of macaw palm vegetable oil without using solvent, a promising Brazilian biomass that can substitute other vegetable oils (e.g., soybean oil) in technological applications. This oil has an iodine value of 108.48 g of I2 per 100 g being categorized as a semi-dry oil. The epoxidized vegetable oil can be applied in manifold areas in polymer science. The epoxidation reaction here presented avoided organic solvents and organic acids and aimed to produce a greener route using metal oxides or niobium phosphate as a peroxide-activating catalyst. The experimental parameters were maintained as 10 mol% of catalyst loading and a time of 24 h; however, the temperature for some catalysts was changed to improve the epoxide conversion. Experiments were measured by proton nuclear magnetic resonance (1H NMR). Experiments using titanium oxide (TiO2) as a catalyst reached a conversion greater than 84.7%, while experiments using aluminium oxide (Al2O3) or lanthanum oxide (La2O3) achieved conversions of 22.6 and 30.1%, respectively. Furthermore, it was observed that both niobium compounds instantly react with hydrogen peroxide to form peroxy derivatives.-
Descrição: dc.descriptionLaboratório de Análise Térmica Eletroanalítica e Química de Soluções (LATEQS) Instituto de Química de São Carlos Universidade de São Paulo (USP), SP-
Descrição: dc.descriptionLaboratório de Análise Térmica e Polímeros (LATP) Departamento de Química Faculdade de Ciências Universidade Estadual Paulista (Unesp), SP-
Descrição: dc.descriptionLaboratório de Análise Térmica e Polímeros (LATP) Departamento de Química Faculdade de Ciências Universidade Estadual Paulista (Unesp), SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Brazilian Chemical Society-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAcrocomia aculeata-
Palavras-chave: dc.subjectepoxidation-
Palavras-chave: dc.subjectgreen chemistry-
Palavras-chave: dc.subjectmetal oxide-
Palavras-chave: dc.subjectrenewable monomer-
Título: dc.titleGreener Epoxidation Reaction of Macaw Palm Oil Using Metal Oxides and Niobium Phosphate as Catalysts-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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