Sou Hu Cai Jing·2025-07-08 04:05Group 1 - The core viewpoint of the article is that Sinopec has applied for a patent related to the preparation of phthalic anhydride, which could significantly reduce operational costs and improve efficiency in production [1][3] - The patent application, titled "Method for Preparing Phthalic Anhydride and Method and Application for Extracorporeal Activation," was filed on January 2024 [1] - The method involves activating a catalyst in an oxygen-containing atmosphere at a pressure of at least 0.2 bar, which allows for a rapid increase in the concentration of raw materials such as ortho-xylene and/or naphthalene [1] Group 2 - Sinopec, established in 2000, is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [1] - The company has invested in 263 enterprises and participated in 5,000 bidding projects, holding 45 trademark records and 5,000 patent records [1] - Sinopec (Beijing) Chemical Research Institute Co., Ltd., founded in 2021, focuses on the manufacturing of chemical raw materials and products, with a registered capital of 100 million RMB [2] - The research institute has invested in 4 enterprises and participated in 1,149 bidding projects, holding 16 trademark records and 1,622 patent records [2]