经液-液氧化从蒽制备蒽醌实验研究

Study on the Synthesis of Anthraquinone Through Liquid liquid Abstractive Oxidation of Anthracene

目的 研究液 -液氧化法制备蒽醌新技术 .方法 利用单因素实验法 ,考察搅拌转速、反应温度、硫酸浓度等因素蒽醌产率的影响 .结果 实验表明 ,控制硫酸浓度 1 5% ,温度 68℃ ,加入化学计量的重铬酸钾 ,反应 3 h可使蒽醌的产率达 98%以上 .结论 采用重铬酸的水溶液氧化有机相中蒽的反应为快速反应 。

Aim: To present a new reactive separation technology for the preparation of anthraquinone by liquid-liquid abstractive oxidation of anthracene. Methods: The operating conditions which influence reaction rate were investigated. Results and conclusion: The result of experiments indicates that the yield of anthraquinone over 98% could be obtained through controlling H2SO4 concentration and temperature at 15% and 68°C respectively for a stoichiometric amount of K2Cr2O7 reacted for 3 hours.