Hebei Haisen Chemical has applied for a patent for an efficient and environmentally friendly production method for diethanol monoisopropanolamine, one that improves the purity and yield of the product
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Hebei Haisen Chemical has applied for a patent for an efficient and environmentally friendly production method for diethanol monoisopropylamine, with the aim of improving the purity and yield of this product. According to information from the Intellectual Property Office, Hebei Haisen Chemical Technology Co., Ltd. submitted an application for a patent titled “An Efficient and Environmentally Friendly Production Method for Diethanol Monoisopropylamine”; the publication number is CN120423964A, and the application was filed in April 2025. The patent abstract indicates that this invention discloses an efficient and environmentally friendly method for producing diethanol monoisopropanolamine. This method uses diethanolamine and propylene oxide as raw materials, and the reaction takes place under the action of a composite catalyst composed of 1,8-diazabicycloundec-7-ene (DBU) and cobalt acetate. The composite catalyst system employed in this invention is a composite catalyst that catalyzes the reaction from different perspectives through the synergistic action of an organic base and a transition metal salt. DBU promotes the ring-opening of propylene oxide, while cobalt acetate activates the reactants and stabilizes the reaction intermediates, effectively suppressing side reactions such as the polymerization of diethanolamine with propylene oxide, thereby improving the purity and yield of the product. According to Tianyancha, Hebei Haisen Chemical Technology Co., Ltd. was established in 2014 and is located in Shijiazhuang. It is a company that focuses on the manufacturing of chemical raw materials and chemical products. The registered capital of the enterprise is 10 million RMB. According to the big data analysis provided by Tianyancha, Hebei Haisen Chemical Technology Co., Ltd. has participated in 6 bidding projects. In terms of property-related information, it has 2 trademark records and 26 patent records; in addition, the company holds 8 administrative licenses.
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