Journal of Chemical Engineering & Process Technology
Open Access

Raquel A Loss

Publications

• Research Article
  Synthesis of Eugenyl Acetate in Solvent-Free Acetylation: Process Optimization and Kinetic Evaluation
  Author(s): Denise A Laroque, Raquel A Loss, Maria JA Silva, Gabriela N Pereira, Alexsandra Valerio, Haiko Hense, Debora de Oliveira and J Vladimir Oliveira Denise A Laroque, Raquel A Loss, Maria JA Silva, Gabriela N Pereira, Alexsandra Valerio, Haiko Hense, Debora de Oliveira and J Vladimir Oliveira
  
  In this work, the synthesis of eugenyl acetate was evaluated in the presence of heterogeneous catalysts aiming developing an economical and environmentally friendly process. The catalysts used were molecular sieve 4Å and Amberlite XAD-16, and highest conversions were obtained in the investigated conditions by experimental design for both catalysts. In the kinetic study the effects of temperature, catalyst concentration and eugenol to acetic anhydride molar ratio in the conversion process were evaluated. The kinetics using molecular sieves 4Å were performed until 6 h of reaction, reaching conversions above 90% in 2 h and the activation energy was 2.40 kcal.mol-1. With Amberlite XAD-16 up to 2 h reactions were conducted and in just 3 min high reaction conversions (97.8%) were achieved with lower activation energy (1.73 kcal mol-1) than the molecular sieve, demonstrating that both catalysts.. View More»
  DOI: 10.4172/2157-7048.1000247

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