LI Liang-kui1,2, KE Da1,2, LI Zhen-ming3, RUAN Jian-cheng1,2, CHEN Xin-zhi1,2
1. Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; 2. Quzhou Research Institute, Zhejiang University, Quzhou 324000, China; 3. Sichuan Zhijiang High-new Materials Co., Ltd., Suining 629100, China
Abstract: Under the action of acid catalysis,acetaldehyde and phenol,which are by-products in the polyester production process,are used as raw materials to produce bisphenol E through a condensation reaction.The optimized process conditions are obtained in the experiment:sulfuric acid aqueous solution with a mass fraction of 80% is used as the catalyst,the molar ratio of phenol:acetaldehyde:sulfuric acid is 5:1:2,the reaction temperature is 20℃,and the reaction performs for 2 h.Under the optimal process conditions,the conversion rate of acetaldehyde reaches 94.7%,the yield of bisphenol E is 84.6%,and the purity of bisphenol E is 99.5%.As for this process,the catalyst and solvent can be recycled,water is the sole by-product and is easier to be separated and recovered in the two-phase system.
李良葵, 柯达, 李珍名, 阮建成, 陈新志. 双酚E的合成工艺研究[J]. 现代化工, 2022, 42(9): 186-189.
LI Liang-kui, KE Da, LI Zhen-ming, RUAN Jian-cheng, CHEN Xin-zhi. Study on bisphenol E synthesis process. Modern Chemical Industry, 2022, 42(9): 186-189.
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