MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202637082886 A) filed by China Petroleum & Chemical Corporation; and Sinopec Dalian Research Institute Of Petroleum And on July 06, 2026, for Method For Producing Diphenylamine.
Inventors include Zhao, Xiangyu; Qi, Wenbo; Ai, Fubin; Li, Haomeng; and Li, Lanpeng.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: The present invention belongs to the technical field of fine chemical engineering, and specifically relates to a method for producing diphenylamine. The method comprises: in the presence of an olefin, allowing aniline to come into contact with a catalyst, and performing a condensation reaction, ...