The market space of m-aminobenzenesulfonic acid (3-aminobenzenesulfonic acid) continues to expand, and catalytic hydrogenation reduction is an emerging preparation method.

Meta-aminobenzenesulfonic acid, also known as 3-aminobenzenesulfonic acid, has the chemical formula C6H7NO3S and is an important chemical intermediate. Meta-aminobenzene sulfonic acid appears as white flaky crystals with a pungent odor. It is soluble in alkali, water and concentrated hydrochloric acid, and is slightly soluble in ether and ethanol. Meta-aminobenzene sulfonic acid has the characteristics of high toxicity and easy moisture absorption, and is widely used in dyes, chemical synthesis, medicine, batteries, device manufacturing and other fields.

The traditional preparation method of m-aminobenzene sulfonic acid is the iron powder reduction method. In this method, the m-aminobenzenesulfonic acid solution is first diluted, and then iron powder is added to perform the reduction operation, and then the finished product is obtained through filtration, cleaning and other processes. This method has parameters It has the advantages of easy control, low requirements on raw material purity, and low production cost. However, this method easily produces a large amount of “three wastes” and causes pollution to the environment. It has been eliminated by the market. The catalytic hydrogenation reduction method is an emerging method for the preparation of m-aminobenzenesulfonic acid. This method has the advantages of high yield of finished products, good quality of finished products, green environmental protection, and simple production process. It is expected to be widely used in the preparation process of m-aminobenzenesulfonic acid in the future. .

As an important chemical intermediate, meta-aminobenzene sulfonic acid is widely used in many fields. In the field of dyes, m-aminobenzene sulfonic acid can be used to prepare azo dyes, vat dyes and reactive dyes; in the field of chemical synthesis, m-aminobenzene sulfonic acid can be mixed with aniline compounds to produce sulfonated polyaniline; In the field of medicine, m-aminobenzenesulfonic acid can be used to prepare drugs such as m-aminobenzenesulfonic acid and p-aminosalicylic acid; in the field of battery manufacturing, m-aminobenzenesulfonic acid can be used to manufacture lithium batteries.

According to the “2023 Global and China Meta-Aminobenzenesulfonic Acid (3-Aminobenzenesulfonic Acid) Industry In-depth Research Report》shows, m-aminophenol, sodium m-aminobenzene sulfonate, m-hydroxy-N,N-diethylaniline, aniline-2,5-disulfonic acid monosodium salt, 4,4′-dichlorodiphenyl Sulfone, 4,4′-diaminodiphenyl sulfone, etc. are terminal products of m-aminobenzene sulfonic acid. Taking sodium m-sulfanilic acid as an example, in recent years, benefiting from technological progress, my country’s sodium m-sulfanilic acid production has continued to increase, reaching 15,000 tons in 2022, a year-on-year increase of 6.1%. As the development of downstream industries accelerates, the market space of m-aminobenzene sulfonic acid will be further expanded.

Jianxin Co., Ltd., Richangsheng Chemical, Yongtong Chemical, Kate Chemical, etc. are the main players in my country’s m-aminobenzene sulfonic acid market. Jianxin Co., Ltd. is my country’s leading enterprise of m-aminobenzenesulfonic acid. It focuses on the research and development, production and sales of benzene-based intermediate products. It also participated in the revision of the national standard “HG/T6036-2022 m-aminobenzenesulfonic acid”.

Industry analysts said that m-aminobenzene sulfonic acid has excellent performance and is widely used in many applications. With the gradual release of downstream demand, its industry The speed of development will further accelerate. In recent years, with technological advancement, greenness and high quality have gradually become the mainstream development trends of my country’s m-sulfanilic acid industry. It is expected that in the future, companies with large-scale production capabilities of high-quality m-aminobenzene sulfonic acid will occupy a larger space in the Chinese market.