my country’s sodium tripolyphosphate (STPP) production capacity continues to expand and exports continue to grow

Sodium tripolyphosphate (STPP), also known as pentasodium phosphate and sodium pyrometaphosphate, has a chemical formula of Na5P3O10 and is an inorganic compound. Sodium tripolyphosphate is an amorphous water-soluble linear polyphosphate. It appears as a white crystalline powder and is soluble in water but insoluble in ethanol. Sodium tripolyphosphate has dispersing, emulsifying and peptizing properties and is widely used in food processing, pharmaceuticals, ceramics, detergents and other fields. According to different generation temperatures, sodium tripolyphosphate can be divided into two types: low-temperature type and high-temperature type.

The main production processes of sodium tripolyphosphate include one-step wet phosphoric acid process and two-step hot phosphoric acid process. The one-step wet phosphoric acid method refers to using phosphoric acid and soda ash as raw materials, removing sulfate and fluorosilicic acid, and then going through processes such as neutralization reaction, filter press, concentration, drying, polymerization, and cooling to obtain finished products. It can be subdivided into mixed salts There are four methods: mixed acid method, high temperature mixed salt method and high temperature mixed acid method. The two-step thermal phosphoric acid method means that the raw materials are first neutralized, and the resulting solution is dried, cooled, and other processes to obtain the finished product.

The main raw materials of sodium tripolyphosphate include phosphoric acid, soda ash, sodium dihydrogen phosphate, etc. As my country’s COVID-19 prevention and control policies are relaxed, the operating rates of many manufacturers have increased, and the sufficient supply of raw materials has driven the expansion of sodium tripolyphosphate production capacity, with output showing a steady growth trend. According to the “2023-2028 China Sodium Tripolyphosphate (STPP) Industry Market In-depth Research and Development Prospects Forecast Report” shows that my country’s sodium tripolyphosphate production capacity will reach 778,000 tons in 2022, a year-on-year increase of 2.3%. However, due to restrictions on environmental protection policies, the market demand for industrial-grade sodium tripolyphosphate in my country has shrunk. It is expected that my country’s sodium tripolyphosphate industry will develop slowly in the future.

In terms of import and export, my country’s sodium tripolyphosphate production is sufficient, which not only meets the needs of the local market, but is also sold overseas. According to statistics from the General Administration of Customs of China, my country’s export volume of sodium tripolyphosphate will reach 209,000 tons in 2022, a year-on-year increase of 20.8%. Brazil, Thailand and Mexico are my country’s main exporters of sodium tripolyphosphate, with Brazil accounting for nearly 20% of my country’s total imports.

The main manufacturers of sodium tripolyphosphate in my country include Guizhou Wengfu Group, Yunnan Yuntianhua, Hubei Xingfa Group, Yibin Tianyuan Group and Jiangsu Chengxing Group. Hubei Xingfa Group focuses on the development, production and sales of phosphorus chemical products and fine chemical products. It is one of the earliest companies in my country to produce sodium tripolyphosphate. Currently, the company’s annual production capacity of sodium tripolyphosphate reaches nearly 140,000 tons.

Industry analysts said that sodium tripolyphosphate has dispersing, emulsifying and peptizing properties. As a fine chemical, it has many uses. widely. my country is a major producer of sodium tripolyphosphate in the world, and its products not only meet the needs of the local market, but are also sold overseas. The technical barriers to the sodium tripolyphosphate industry are low. my country’s market is dominated by small and medium-sized enterprises. With the continuous optimization of the industrial structure, the concentration of the sodium tripolyphosphate industry will increase.