Química Nova | |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP | |
Marta Regina Dos Santos Nunes2  Marcia Martinelli1  Marcelo Monteiro Pedroso1  | |
[1] ,Universidade de Caxias do Sul Departamento de Física e Química Caxias do Sul RS ,Brasil | |
关键词: epoxidation; castor oil; heterogeneous system; | |
DOI : 10.1590/S0100-40422008000400021 | |
来源: SciELO | |
【 摘 要 】
The alternative system VO(acac)2/TBHP was investigated for the epoxidation reaction of castor oil and its derivatives. Results of 88% of conversion, 73% of epoxidation and 82% of selectivity were obtained for the system containing 20% excess of TBHP and 1% of VO(acac)2 catalyst, during 3 h under toluene reflux. The product was characterized by GC/MS as methyl-cis-9, 10-epoxi, 12-hydroxystearate and quantitative ¹H NMR was used to calculate the data above. Preliminary results indicate that the heterogeneous system VO(acac)2 grafted on K10 clay can also promote epoxidation of castor oil.
【 授权许可】
CC BY-NC
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
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RO202005130062434ZK.pdf | 78KB | download |