MUMBAI, India, July 11 -- Intellectual Property India has published a patent application (202527059243 A) filed by Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences, Liaoning, China, on June 20, for 'process for preparing epichlorohydrin by directly oxidizing chloropropene by using liquid-solid circulating fluidized bed reactor.'
Inventor(s) include Huang, Jiahui; Liu, Yingchun; Su, Xin; He, Guse; Zhang, Hengyun; He, Peng; Wang, Changyun; Li, Xinju; Jia, Yuhua; and Long, Huayun.
The application for the patent was published on July 11, under issue no. 28/2025.
According to the abstract released by the Intellectual Property India: "The present invention belongs to the technical field of epichlorohydrin production, and disclosed is a process for preparing epichlorohydrin by directly oxidizing chloropropene by using a liquid-solid circulating fluidized bed reactor. In the present invention, a liquid-solid circulating fluidized bed reactor is used for preparing epichlorohydrin by directly oxidizing chloropropene with hydrogen peroxide. The liquid-solid circulating fluidized bed reactor mainly comprises a reactor, a liquid-solid separator, a liquid extractor, a spent material inclined tube, a regenerator, a catalyst bin, a regeneration inclined tube, etc. In the process, the liquid-solid circulating fluidized bed reactor is used to replace a traditional stirred tank reactor, such that the heat and mass transfer rate between liquid and solid phases is enhanced in the reactor, the back mixing degree in the reactor is reduced, the reaction rate is greatly increased, the reaction time is shortened, side reactions are inhibited, and the effective utilization rate of hydrogen peroxide and the selectivity of epichlorohydrin are increased. The present invention provides a brand-new process for the production of epichlorohydrin, and is beneficial for reducing the production cost of epichlorohydrin."
The patent application was internationally filed on April 6, 2023, under International application No. PCT/CN2023/086469.
Disclaimer: Curated by HT Syndication.
