Optimasi Proses dan Kinetika Reaksi Epoksidasi Minyak Jarak Pagar (Jatropha curcas L.) dengan Hidrogen Peroksida
Ratri Ariatmi N.
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Jatropha curcas oil (JCO) characterized with an iodine value of 90.4 gllOO g, 47.93% oleic acid and 34.42% linoleic acid. was epoxidised in situ with hydrogen peroxide as oxygen donor and acetic acid glacial as active oxygen carrier in the presence of inorganic acid catalyst (H2SO,). The results showed that H;50, was found effective in terms ofconversion to oxirane. The effects ofvarious factors (variables), such as temperature, hydrogen peroxide-to acetic acid mole ratio, and catalyst volume ratio, on epoxidation rate as well as on the oxirane ring stability and iodine value of curcas oil epoxidised (ECO) were studied. The effects of these variables on the conversion to epoxidised oil were also studied. The constant rate of reaction.and activation energy for epoxidation ofcurcas Oil (CO) was found to be an order of /O· 6 I mol I del J and 6.92 kcal mol JKl General cone/usioll showed that it was possible to make epoxides using natural renewable resources such as Co.