80000TPY Trichlorocyanuric acid,40000TPY Dichlorocyanuric acid indsutrial area

Progress in synthesis technology of cyanuric acid
Cyanuric acid, white to grayish white solid at room temperature and pressure, insoluble in ethanol, acetone, carbon tetrachloride, petroleum ether. 1,3, 5-tri (2-hydroxyethyl) cyanuric acid has certain flame retardant properties, and is commonly used as a raw material for polymer production and is mostly used to prepare polyester heat-resistant insulating paint. In addition, the substance can also be used as an intermediate in organic synthesis, and has certain applications in basic research of organic chemistry.
Cyanuric acid contains three hydroxyl units and amide groups in its molecular structure, which has great polarity, so its solubility in low polarity organic solvents is poor. 1,3, 5-tri (2-hydroxyethyl) cyanuric acid is more sensitive to oxidants, and it is easy to be oxidized and deteriorated by contact with oxidants.
At present, there is a great demand for cyanuric acidin the market, and there is still room for further expansion. According to the different reaction media, the synthesis method of cyanuric acid can be divided into two major processes: solid phase and liquid phase. The solid-phase method has been maturely used in industry, and has the characteristics of simple operation and good economy. However, its poor operating conditions and high energy consumption limit its development, especially the problem of substandard environmental protection. Although the liquid-phase method has not yet been applied in industry, its characteristics of continuous production and simple follow-up process are in line with the current development goals of cleaner production processes. Through a review of various methods derived from the solid phase method and the liquid phase method, their advantages and disadvantages are compared, and the industrial development prospects of the liquid phase method and some other cyanuric acid synthesis methods are prospected, and they are expected to be realized. The goal of green cleaning process.

Cyanuric acid common process route
(1)Alkaline earth metal method:Ca(OH)2 aqueous solution and cyanuric acid aqueous solution mixed, reaction through chlorine, reactants through cooling filtration, washing, drying products.
(2)Hypochlorous acid method: hypochlorous acid aqueous solution reacts with cyanuric acid slurry at low temperature, precipitates and filters, washes and dries the product. Isocyanuric acid is dissolved in sodium hydroxide solution, and then chlorine gas is slowly introduced at low temperature for chlorination reaction, then the precipitation of trichloroisocyanuric acid. After filtration, washing and drying, it is the product

Development prospect of trichloroisocyanuric acid
In foreign markets, the United States is the largest consumer of trichloroisocyanuric acid, with an annual consumption of more than 80,000 tons, followed by Japan, with an annual consumption of about 30,000 tons. The main consumption of trichloroisocyanuric acid in foreign countriesis sanitary disinfection. Among them, the amount of swimming pool disinfection tablets is the largest, accounting for about 80%, taking the United States as an example, the annual consumption of swimming pool disinfection is about 70,000 tons: followed by the disinfection of drinking water, hospitals and other public facilities.
Foreign consumption is growing at 14% a year. In the domestic market, the disinfection and sterilization of sericulture and aquaculture are the main consumption areas of trichloroisocyanuric acid in China, accounting for 50% to 60% of the total consumption. With the improvement of people's living standards, the increase in the number of silk and aquatic products will certainly drive the increase in the demand for trichloroisocyanuric acid. Before the serious pollution problem of drinking water in China has caused a high degree of concern, in order to ensure the quality of water, the product tablet used in drinking water disinfection will be concerned. In addition, it can not only improve the utilization rate of circulating water, purify water quality, save water consumption, but also ensure the normal, stable and safe operation of circulating water system, greatly reducing comprehensive energy consumption. In 2019, China's actual consumption of trichloroisocyanuric acid was about 30,000 tons, with the disinfection consumption of sericulture and aquaculture industry accounting for 50% of the total consumption, the disinfection consumption of medical and catering industry 15%, daily disinfection 10%, and the consumption of domestic water and circulating water treatment tablets accounting for 8%. Consumption in agriculture, fisheries, textiles and swimming pools will increase in the future.
Due to the relatively high cost of producing trichloroisocyanuric acid abroad and certain restrictions on the production of chlorinated products abroad, some small and medium-sized enterprises in foreign countries have stopped producing trichloroisocyanuric acid, and turned to importing from developing countries, and then producing its compound preparations to form final products. Therefore, China's export volume of this product has been on the rise in recent years.