Synthesis of triacetin by protic ionic liquids as catalysts
- Author Miguel Iglesias
- Co-Author Jamile S. Serra, Tarciso C. Rosario, Karolyne S. Costa, Rebecca S. Andrade
- DOI
- Country : Brasil
- Subject : Chemical Engineering
Keywords : glycerol, catalysis, protic ionic liquids, triacetin
Abstract
Triacetin (glycerol triacetate) is one of the important derivatives of glycerol and can be applied into many industrial ?‘lds. Usually, it is prepared industrially in the presence of strong mineral acidic catalysts. The main shortcomings include serious environmental issues, complicated technique of synthesis and no recyclability of the used catalyst. In this work, the results of application of a collection of protic ionic liquids as homogeneous catalysts for triacetin esteri?…ation is reported. The study analized a wide spectrum of ionic structures, the proposed protic ionic liquids comprising aliphatic, aromatic or polivalent structures as anions and mono or disubtitutions into the cations. The protic ionic liquids catalysts were used without apparent lost of efficiency in repeated cycles, with excellent performance and conversion into triacetin yield remained above 90%.
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