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The cooling crystallization processes of 1,2-diphenylethane in the MSMPR crystallizer

Yabing Qi

1,2-Diphenylethane can be widely used in organic synthesis field because of its particular molecular structure. In order to gain high pure 1,2-diphenylethane, the mainly conventional purification method is vacuum distillation. However, the vacuum distillation exhausts excessive energy, needs heavy tower equipment, and it is not easy to achieve high pure product. To obtain high pure 1,2-diphenylethane, save money, and conserve energy, the cooling crystallization with ethanol is used to purify 1,2-diphenylethane. Firstly, the impact of crystallization temperature, crystal growing time, cooling rate, stirring speed, seed size, and seed weight on the cooling crystallization processes of 1,2-diphenylethane in ethanol were investigated. Then, the orthogonal experiment were also studied. It provides a reference for industrial cooling crystallization of 1,2-diphenylethane.