The H-acid market is relatively mature and the diamine method will become the mainstream production technology.

H acid is an important intermediate, mainly used in the production of drugs and dyes. It is still an important variety among naphthalene series intermediates. The traditional production method of H acid has problems such as high energy consumption, large emissions of three wastes, and difficult to control environmental pollution. It is not in line with the development trend of modern green and low-carbon industry. The production process of H acid still needs to be continuously improved.

The diamine H-acid synthesis process is a clean production process with a relatively simple production process, high safety, no pollution and high product quality. It complies with national and industry policy requirements and will be vigorously promoted and become a mainstream production technology. .

According to the “2022-2026 H Acid Industry In-depth Market Research and Investment Strategy Suggestion Report” released by the Industrial Research Center, due to the Wastewater is discharged during the acid production process and is difficult to control. Therefore, some developed countries have stopped production one after another. Although companies such as Bayer in Germany and the Czech Republic can produce high-quality H acid powder, they have currently chosen to stop this business. At present, global H acid production capacity is mainly concentrated in India and China, of which India’s annual production capacity is about 50,000 tons. H-acid production capacity in Europe, the United States, Japan and South Korea has been shut down or transferred. China has become an important H-acid producer, and my country’s H-acid production capacity is concentrated in Shandong, Jiangsu, and Hubei.

With the tightening of environmental protection policy supervision, some domestic H-acid companies have stopped production or maintained low operating rates. The production companies include Jihua Group, Chuyuan High-tech Group, and Mingsheng Chemical. The total production capacity of the above three companies is about 70,000 tons, but The actual output is only 10,000 tons, and the operating rate is extremely low.

H acid is suitable for the production of acidic and reactive dyes, such as acid magenta 6B, reactive brilliant red K-2BP, acid scarlet G, acid black 10B, etc. It is mainly used in the production of cotton fabrics and woolen textiles, especially in the production of reactive dyes. to a key role. Due to stricter environmental protection supervision and the sluggish downstream textile industry, dye production has continued to decrease in the past five years, from 930,000 tons in 2016 to 770,000 tons in 2020. Reactive dye production decreased from 260,000 tons in 2016 to 220,000 tons in 2020.

At present, Chinese companies still use the intermittent iron powder reduction process to produce H-acid, but this process does not meet modern environmental protection requirements. Therefore, the H-acid industry has entered a period of alternation between old and new processes, and new processes will gradually seize the market. Enterprises with diamine production processes More competitive advantage.

Industrial analysts said that H acid is mainly used in dye production and is used in the production of cotton fabrics and woolen textiles, and there is a rigid demand. At present, the production process of H acid is still relatively backward, the product output rate is low, and it poses a serious threat to the environment, which is not conducive to the development of the industry. In order to improve the efficiency of H acid production, domestic innovative production processes, and the diamine method will become the mainstream technology in the future. The H acid industry is relatively mature and the market concentration is high. my country is an important producer of H acid.