Linseed oil is characterized by an elevated concentration of highly unsaturated fatty acids such as linolenic and linoleic acids. This work has the objective to evaluate the effect of the high unsaturation of linseed oil on the reactivity and selectivity of the epoxidation reaction. For this purpose, different kinetic experiments of linseed oil epoxidation with performic acid, produced in situ, and phosphoric acid as catalyst, have been performed and interpreted with a biphasic kinetic model previously tested on soybean oil epoxidation. This model considers the contribution of the main reactions involved in each phase, including the side reactions such as performic acid decomposition and ring opening reactions. The experiments made have been simulated, with the mentioned kinetic model, after the evaluation by mathematical regression of the kinetic and thermodynamic parameters of the model. Then, the obtained results have been compared with those described in the literature for soybean seed oil, considering, in particular, the effect of the different unsaturated fatty acids composition on activity and selectivity.

中文翻译：

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原位过甲酸环氧化亚麻籽油

亚麻籽油的特点是高度不饱和脂肪酸（例如亚麻酸和亚油酸）的浓度升高。这项工作的目的是评估亚麻籽油的高不饱和度对环氧化反应的反应性和选择性的影响。为此，使用原位生产的过甲酸和磷酸作为催化剂的亚麻籽油环氧化的不同动力学实验已经进行，并用先前在大豆油环氧化上测试过的双相动力学模型进行了解释。该模型考虑了每个阶段所涉及的主要反应的贡献，包括过甲酸分解和开环反应等副反应。已使用上述动力学模型模拟了所做的实验，在对模型的动力学和热力学参数进行数学回归评估后。然后，将获得的结果与大豆籽油文献中描述的结果进行比较，特别是考虑了不同不饱和脂肪酸组成对活性和选择性的影响。