Ultrasonic K <sub> 2 </ Sub> Cr <sub> 2 </ Sub> O <sub> 7 </ Sub> Indirect Electrochemical Oxidation Of Anthracene Generated Study Of The Anthraquinone Process

Effects of ultrasound on the indirect electrochemical oxidation of anthracene to anthraquinone by potassium dichromate in sulfuric acid solution were studied. The anthracene conversion and reaction rate of anthracene were investigated under silent, sonicated and mechanical agitation conditions. Instantaneous current efficiency of the electrochemical oxidation process of Cr³⁺ in the absence and presence of ultrasound was studied in a divided electrochemical cell. The instantaneous current efficiency of electrolytic regeneration of the chromium solution in the process of indirect electrochemical oxidation of anthracene to anthraquinone by potassium dichromate was also studied under silent and sonicated conditions.1. Effects of ultrasound on the oxidation of anthracene by potassium dichromate in sulfuric acid solutionEffects of ultrasound on the oxidation of anthracene to anthraquinone by potassium dichromate in sulfuric acid solution were investigated under silent, sonicated and mechanical agitation conditions. The variations of anthracene conversion and the reaction rate of anthracene with the reaction time were observed at 30℃, 40℃and 50℃, respectively.Ultrasound is found to have significant effects on the oxidation of anthracene to anthraquinone by potassium dichromate in sulfuric acid solution. The anthracene conversion and the reaction rate of anthracene under sonication and mechanical agitation are higher than that under silent conditions, and that with ultrasound are higher than with mechanical agitation. For example, when the reaction proceeds for 4 h at 40℃, the anthracene conversion is 6.9 %, 24.1 % and 55.3 % under silent, mechanical agitation...