Epoxidation of double bonds in vegetable oils provide valuable green intermediates for the chemical industry. The epoxidation of oleic acid with hydrogen peroxide according to the Prilezhaev principle was studied experimentally in a multiphase laboratory-scale batch reactor operated isothermally at 50 °C and atmospheric pressure. A solid cation exchanger (Amberlite IR-120) was used as the solid catalyst to enhance the slow step in the Prilezhaev process: the in situ formation of the epoxidation agent, peracetic acid, from hydrogen peroxide and acetic acid. A rotating basket stirrer was used to suppress the external mass transfer limitations and to guarantee a turbulent random flow in the vicinity of the catalyst particles. Kinetic experiments demonstrated the catalytic effect of the cation exchanger. Several experiments were performed in the presence and absence of ultrasound irradiation at different amplitudes.

中文翻译：

---

存在和不存在超声照射时油酸的 Prilezhaev 环氧化反应

植物油中双键的环氧化为化学工业提供了有价值的绿色中间体。根据 Prilezhaev 原理，油酸与过氧化氢的环氧化在多相实验室规模的间歇式反应器中进行了实验研究，该反应器在 50 °C 和大气压下等温运行。固体阳离子交换剂 (Amberlite IR-120) 用作固体催化剂以增强 Prilezhaev 过程中的缓慢步骤：原位由过氧化氢和乙酸形成环氧化剂过乙酸。旋转篮式搅拌器用于抑制外部传质限制并确保催化剂颗粒附近的湍流随机流动。动力学实验证明了阳离子交换剂的催化作用。在存在和不存在不同幅度的超声辐射的情况下进行了若干实验。