Dioxan has a wide range of applications and my country’s supply capacity is steadily improving

Dioxan, also known as 1,3-dioxalan, dioxolane, etc., is an excellent organic solvent. It appears as a water-white liquid and is soluble in water and ethanol. Dioxapentane is an oxygen-containing heterocyclic chemical intermediate. It can be used as an electrolytic solvent, solvent, extractant, chlorine-based solvent stabilizer, pharmaceutical intermediate, etc., and is used in chemical industry, medicine, pesticides, catalysts, lithium batteries, new Energy vehicles and other fields.

According to the “2021-2026 China Dioxan Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center , from 2015 to 2020, my country’s dioxane supply capacity continued to improve, increasing from 132,000 tons to about 174,000 tons. Dioxan has a wide range of applications. In recent years, with the rapid development of new energy vehicles, the market demand for dioxan has been increasing, and the demand will reach about 103,000 tons in 2020. my country’s dioxane market is oversupplied, and while its production capacity meets domestic market demand, it is also exported to overseas markets.

Dioxan is usually obtained by reacting paraformaldehyde and ethylene glycol, which involves catalysis, dehydration, distillation, purification and other processes. During the production process of dioxan, it is easy to create a strong acid environment. In recent years, under the background of increasingly strict environmental protection supervision, the production of dioxa has been subject to certain restrictions, thus providing a market for imported dioxa products. In 2020, my country The import volume of dioxine is around 4,000 tons.

The regional concentration of dioxane production is relatively high. At present, my country’s dioxane production capacity is mainly concentrated in East China and North China, and there is also a small amount of production capacity in central China, east China and other regions. At present, my country’s large-scale dioxane manufacturers include Jiangsu Senxuan Pharmaceutical Chemicals, Nantong Jinshengchang Chemicals, Kaifeng Longyu Chemicals, etc. Among them, Jiangsu Senxuan Pharmaceuticals and Chemicals is one of the main suppliers of dioxanes in China, with an annual production capacity of Reaching 3,000 tons. In November 2021, Jiangsu Senxuan Pharmaceutical and Chemical Industry announced that it would expand dioxan production. After the expansion, the company’s annual dioxan production capacity will reach 6,000 tons.

From the perspective of downstream applications, dioxane is the second monomer of copolymer formaldehyde and can be used to produce paraformaldehyde. Currently, paraformaldehyde is the largest application field of dioxane, with an application share of up to 80%, followed by solvents. In recent years, thanks to the rapid development of new energy vehicles, the demand for dioxane in the field of lithium battery solvents has grown rapidly. As a lithium battery solvent, dioxane is mainly used in the primary battery field of the ferrophosphate route.

Industry analysts said that dioxane is an excellent organic solvent, and its downstream applications involve chemical industry, lithium batteries, and medicine. , pesticides and many other fields. In recent years, thanks to the continuous release of market demand, my country’s dioxane supply capacity has been continuously improved. While its production capacity meets the domestic market, it is also exported to overseas markets. However, as environmental protection supervision becomes increasingly strict, my country’s new dioxane production capacity will be limited in the future.