Intellectual Property India Publishes Patent Application for Modified Molecular Sieve And Preparation Method Therefor, Catalyst And Use Thereof, And Method For Synthesizing Diphenylamine From Aniline

MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202637081027 A) filed by China Petroleum & Chemical Corporation; and Sinopec Dalian Research Institute Of Petroleum And on July 01, 2026, for Modified Molecular Sieve And Preparation Method Therefor, Catalyst And Use Thereof, And Method For Synthesizing Diphenylamine From Aniline.

Inventors include Wang, Zhenyu; Zheng, Bumei; Qi, Wenbo; Wang, Libo; and Zhao, Xiangyu.

The application for the patent was published on July 24, 2026, under issue no. 30/2026.

Abstract: A modified molecular sieve and a preparation method therefor, a catalyst and the use thereof, and a method for synthesizing diphenylamine from aniline. The modified molecular sieve comprises a ß molecular sieve and an auxiliary component, and the auxiliary component is selected from at least one alkali metal. The indicative constant k of the modified molecular sieve is not less than 100. The catalyst prepared from the modified molecular sieve has a relatively high diphenylamine selectivity and a longer one-way operation period.

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