Clean synthesis device for dibromohydantoin

Abstract

The invention relates to a clean synthesis device for dibromohydantoin, which belongs to the technical field of chemical synthesis equipment, and comprises a synthesis device used as a generation container of dibromohydantoin; a circulation pipe; the synthesis top is provided with a feed port, the synthesis bottom is provided with a discharge port, the discharge port is connected with an axial flow pump, one end of the circulating pipe is connected with the feed port, the other end of the circulating pipe is connected with a feed mixer used for being connected with mixed liquid, the feed mixer is connected with the axial flow pump through a feed pipe, and the feed mixer is connected with the axial flow pump through a discharge pipe. The synthesis of dibromohydantoin can be accelerated, and the yield is improved.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis equipment, in particular to a clean synthesis device of dibromohydantoin. Background technique [0002] Dibromohydantoin is a special brominating agent with the advantages of high active bromine content, good storage stability and economical use. It is widely used in allyl and benzyl compounds and active aromatic rings in chemical and pharmaceutical industries. It is also used for environmental surface disinfection and article disinfection in various public places; dibromohydantoin leads to the death of microorganisms by destroying the cell walls, cell membranes, proteins and nucleic acids of microorganisms, and has a wide bactericidal spectrum, strong bactericidal ability and speed of action. Fast, stable, low toxicity, corrosive, less irritating, soluble in water, safe for humans and animals, cheap and easy to obtain, and low environmental pollution. [0003] As the country's require...

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Problems solved by technology

[0003] As the country's requirements for safety and environmental protection become more and more stringent, the chlorination process is gradually restricted, and the approval of chlorine-related processes is becoming more and more difficult. The current synthesis device is to directly add the mixture of hydrogen peroxide and hydrochloric acid to the synthesis tank slowly. In the process, there is too little hydrochloric acid, too much base material, and the hydrochloric acid is consumed quickly, which is unfavorable or impossible for the reaction of hydrochloric acid, hydrogen peroxide and sodium bromide. At the same time, the alkali is consumed, which is not conducive to the bromination of 5,5-dimethylhydantoin. It will also cause the synthesis time of 1,3-dibromo-5,5-dimethylhydantoin to be too long and the yield to be low. Therefore, a special synthesis device for dibromohydantoin has been developed.

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