MUMBAI, India, March 14 -- Intellectual Property India has published a patent application (202617011572 A) filed by Rezel Engineering Co. Ltd., Shanghai, on Feb. 3, for 'ethylene oxide catalyst and preparation method therefor.'
Inventor(s) include Liu, Bing; Xie, Jinning; Sun, Qiushi; Zhuo, Runsheng; Liu, Xinsheng; and Gong, Haijun.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to the technical field of catalyst preparation, and provides an ethylene oxide catalyst and a preparation method therefor. The preparation method for the ethylene oxide catalyst comprises the following steps: acquiring an alumina carrier; acquiring an impregnation solution containing a silver active component, an alkali metal auxiliary agent and a rare earth metal auxiliary agent; loading the impregnation solution onto the alumina carrier by means of a double cone impregnation method, so as to obtain a catalyst intermediate; and activating the catalyst intermediate by means of a vibro-activation method, so as to obtain the ethylene oxide catalyst. In the present invention, the double cone impregnation method and the vibro-activation method are used; and by means of the cooperation of the two methods, the performance of existing ethylene oxide catalysts is significantly improved, and the shortcomings of existing ethylene oxide catalysts prepared by means of an excess solution impregnation method and activation with a muffle/tube furnace are overcome."
The patent application was internationally filed on July 30, 2024, under International application No.PCT/CN2024/108392.
Disclaimer: Curated by HT Syndication.
