【Frontiers in HaiChuan Chemical Technology】Patent for “A Device for Producing Propylene Oxide via Direct Oxidation with Hydrogen Peroxide”

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According to news from June 10, 2025, **information from the Intellectual Property Office shows that China Tianchen Engineering Co., Ltd. has filed a patent application for a device titled “A method for producing propylene oxide through direct oxidation of hydrogen peroxide”, with the publication number CN120115089A; the application was submitted in March 2025.** The patent abstract indicates that this invention falls within the field of chemical synthesis technology, and it proposes a device for producing propylene oxide via direct oxidation with hydrogen peroxide, comprising a single reaction unit or N series-connected reaction units, where N is at least 2 ； When the device is a single reaction unit, the reactor is connected to a solvent inlet pipe, a hydrogen peroxide inlet pipe, and a propylene inlet pipe; the outlet of the reactor is connected to the inlet of the liquid-liquid phase separation device ； The outlet of the propylene-rich phase from the liquid-liquid phase separation unit is connected to the feed inlet of the reactor, while the outlet of the solvent-rich phase from the same unit is connected to the subsequent separation unit ； When the device comprises N series-connected reaction units, the outlet of the rich solvent phase from the liquid-liquid phase separation device in the previous reaction unit is connected to the feed inlet of the reactor in the next reaction unit, and the outlet of the rich solvent phase from the liquid-liquid phase separation device in the last reaction unit is connected to the subsequent separation unit. According to Tianyancha, China Tianchen Engineering Co., Ltd. was established in 1992 and is located in Tianjin. It is a company that specializes in building decoration, renovation, and other construction-related activities. The registered capital of the company is 2.5 billion RMB. According to the big data analysis conducted by Tianyancha, China Tianchen Engineering Co., Ltd. has made investments in 21 companies in total, participated in 5,000 bidding projects. In terms of property-related information, it holds 7 trademark records and 912 patent records; furthermore, the company possesses 45 administrative licenses.