Factory supply Dimethyl Malonate CAS NO.108-59-8

Hebei Yanxi Chemical Co., Ltd. is a professional research, development and production of lead acetate benzene acetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environmental protection safety smooth" call and support form, the bold innovation on traditional production equipment and technology, using "high temperature alkali type production method" and "plastic basin of crystallization technology, on the basis of reducing the product cost make the product quality to achieve the same industry leading level.In the company all staff's efforts, in shandong, henan province guangdong South America Europe the United States for decades in Mexico, Brazil, South Africa, Zimbabwe and other places set up several partners, quality inspection department in the company, under the close supervision of a production and sales in the form of "label", provide the fastest speed convenient service for users across the country.

In "advancing with The Times, and the city every day, with the advancement of" under the guidance of the core ideas, adhering to the "relying on scientific and technological innovation, the development of circular economy" of the enterprise purpose, established in the market, enhance strength, go the way of scientific and sustainable development of environmental protection, relying on the national technology research and development center, increasing spending on research and development based on the domestic market, expand the international market, manufacturing high quality products, sincere service society, toward a modern, ecology, science and technology of the domestic first-class, the world's advanced chemical enterprises

Production method: the method of multi - use cyanide esterification. Chloroacetic acid is neutralized with sodium carbonate to form sodium chloroacetate, and then cyanide sodium cyanide is used to obtain sodium cyanoacetate. Sodium cyanoacetate was hydrolyzed to sodium malonate, then two methyl malonate was esterified with methanol in the presence of sulphuric acid. The content of ester in industrial products is more than 98%. Raw material consumption quota: chloroacetic acid 1120kg/t, sodium cyanide 551kg/t and methanol 955kg/t. The main new technologies developed abroad are mainly catalyzed carbonylation, namely, chloroacetate, carbon monoxide and methanol as raw materials. In the presence of catalyst, two methyl malonate is synthesized by one step reaction. In contrast, catalytic carbonylation process technology is advanced, but the process is complex, the reaction conditions are harsh, and industrialization has some difficulties.

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