Application of microreactor for preparation of ethylicin and production process of ethylicin

Abstract

The invention relates to an application of a microreactor for preparation of ethylicin and a production process of the ethylicin. The process of preparing the ethylicin by using the microreactor comprises the following steps: liquid raw materials and gas raw materials, or a mixture of the gas raw materials and the liquid raw materials are used as the ethylicin raw materials for entering the microreactor, wherein the liquid raw materials include diethyl disulfide, a catalyst and liquid oxidizing raw materials, and the gas raw materials are gas oxidizing raw materials, the raw materials are conveyed to the microreactor, and gas-liquid separation is performed to prepare the ethylicin or after gas-liquid separation is performed, the reaction is continued to prepare the ethylicin. The microreactor is used to prepare the ethylicin for the first time, various feasible processes of using the microreactor to prepare the ethylicin are developed, the efficiency of preparing the ethylicin is improved, and the concentration of the ethylicin product is improved; and the most important thing is that the time for producing the ethylicin can be shortened by controlling the conditions in the reaction process, and the different methods of producing the ethylicin have unique process characteristics and process advantages.

Description

technical field [0001] The invention belongs to the field of pesticide preparation, and in particular relates to the use of a microreactor for preparing acetoallin and its production process. Background technique [0002] The pure product of ethyl allicin (ethyl ethyl thiosulfonate) is a colorless oily transparent liquid, which decomposes when heated to 130-140°C. Soluble in ether, chloroform, ethanol, glacial acetic acid and other organic solvents, the solubility in water at room temperature is 1.2%. The industrial product is light yellow oily transparent liquid with garlic odor. Moderately toxic to warm-blooded animals. Its acute oral LD50 is 80 mg / kg in mice and 140 mg / kg in rats. Irritating to the skin of rabbits and guinea pigs. It has a broad spectrum of sterilization, and at a concentration of 1-100 mg / L, it can inhibit cotton anthracnose, R. Gibberella, striae, Tilletia, apple anthracnose, cucumber vine and other fungi and bacteria. [0003] CN105523980A disclo...

AI Technical Summary

Problems solved by technology

The microreactor has the advantages of increased specific area, enhanced heat transfer process, enhanced mass transfer process, safe reaction and easy scale-up. However, in different chemical productions, some are difficult to achieve industrialization effects, and some can be achieved, but not. goals of industrial production

[0005] The currently disclosed and industrially applied acetolicin production processes and equipment are difficult to achieve high efficiency and environmental protection. The applicant of the present invention has realized the preparation of acetolicin by using microreactors on the one hand. Quality and yield requirements, on the other hand, explored the application of microreactors to prepare acetolicin process requirements, and the production of acetolicin is efficient, environmentally friendly and safe

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