Sinopec has been granted an invention patent: “Catalyst for the synthesis of vinyl acetate by the ethylene method, its preparation method and application, as well as method for the synthesis of vinyl acetate””
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According to data from the Tianyancha app, Sinopec (600028) has newly obtained an invention patent grant. The title of the patent is “Catalyst for the synthesis of vinyl acetate by the ethylene method, as well as its preparation method and applications, and method for synthesizing vinyl acetate”. The patent application number is CN202210731414.6, and the grant date is January 27, 2026. Patent abstract: The present invention relates to the field of catalysts, and specifically to a catalyst for the synthesis of vinyl acetate via the ethylene method, as well as its preparation method and applications, and to a method for synthesizing vinyl acetate. The optimal reaction temperature point in the temperature-programmed surface reaction process TPSR of this catalyst is 125–135℃ ； The catalyst contains Pd, Au, and alkali metal acetates. The present invention uses an ethylene-based catalyst for the synthesis of vinyl acetate, with the optimal reaction temperature in the programmed temperature surface reaction process TPSR set at 125–135°C, thereby effectively addressing the issue of low selectivity associated with existing ethylene-based catalysts for vinyl acetate production. Since the beginning of this year, Sinopec has obtained 485 new patent approvals, a 136.59% increase compared to the same period last year. Based on the company’s financial figures for the first half of 2025, the company invested 6.186 billion yuan in research and development during that period, representing a 3.05% increase compared to the previous year. According to big data analysis by Tianyancha, Sinopec Corporation has invested in 269 companies in total and participated in 17,710 bidding projects ； Regarding property-related clues, there are 106 trademark records, 90,852 patent records, and 1,405 copyright records ； In addition, the company holds 41 administrative licenses.
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