my country’s electronic-grade sulfuric acid preparation technology has matured and output is gradually increasing

Electronic-grade sulfuric acid, also known as ultra-pure sulfuric acid, high-purity sulfuric acid, etc., belongs to one of the subcategories of wet electronic chemicals and is one of the most important chemical reagents in the development of electronic technology. Electronic-grade sulfuric acid mostly appears as a colorless and transparent oily liquid under normal temperature and pressure. It has strong oxidizing and water-absorbing properties and can react with almost all metals and their oxides. According to different grades, electronic grade sulfuric acid can be roughly divided into UP-S, EL, UP, UP-SS, etc. After years of development, the preparation process of electronic-grade sulfuric acid has been basically mature and can be roughly divided into gas absorption method, distillation method, etc. Among them, the distillation method is suitable for small-scale production, and the gas absorption law is suitable for large-scale production.

From the upstream of the industrial chain, sulfuric acid has become the main raw material for electronic grade sulfuric acid. As a basic chemical, sulfuric acid is widely used in textiles, fertilizers, medicine, papermaking and other fields, and market demand is gradually increasing. In recent years, my country’s industrial structure has been gradually upgraded, backward production capacity in the sulfuric acid industry has been cleared at an accelerated pace, and the capacity utilization rate of advanced enterprises has gradually increased, which has promoted the steady growth of my country’s sulfuric acid production. According to data released by the National Bureau of Statistics, my country’s sulfuric acid production will reach 95.046 million tons in 2022, a year-on-year increase of 1.30%. my country’s sulfuric acid production is gradually increasing, providing sufficient raw materials for the rapid development of the electronic grade sulfuric acid market.

As a chemical reagent, electronic grade sulfuric acid is widely used in semiconductors, integrated circuits (ICs) and other microelectronics industries. During the wafer production process, electronic-grade sulfuric acid is mainly responsible for photolithography, cleaning, etching, etc. on the wafer. It can effectively remove inorganic residues, impurity particles, and carbon deposits on the wafer, thereby ensuring the quality and performance of the wafer. In addition, electronic-grade sulfuric acid can also be used as a solution and is mostly used to produce electrolytes for lithium batteries and other rechargeable batteries. With the rapid development of my country’s semiconductor, integrated circuit, and lithium battery markets, the market demand for electronic-grade sulfuric acid has steadily increased.

According to the “China Electronic Grade Sulfuric Acid Industry Market Supply and Demand Status and Development Trend Forecast Report 2023-2027” released by the Industrial Research Center, As the international semiconductor industry gradually shifts to my country, my country’s semiconductor market has developed rapidly, and the market demand for electronic-grade sulfuric acid continues to grow. Against this background, my country’s electronic-grade sulfuric acid production capacity has gradually expanded, and output has increased. From 2015 to 2022, my country’s electronic-grade sulfuric acid production increased from 17,200 tons to 133,800 tons, with an average annual compound growth rate of 34.05%.

Industry analysts said that at present, my country’s key electronic-grade sulfuric acid companies mainly include Xingfu Electronics, Lianshi New Materials, and Runma Electronics , Jianghua Microelectronics, etc. Since my country’s electronic-grade sulfuric acid industry started late, there is still a certain gap between production technology and international advanced technology. This requires my country’s electronic-grade sulfuric acid companies to continuously improve their research and development levels and gradually break the high-end technology monopoly of foreign companies, thereby achieving complete domestic substitution. .