Anthraquinone – Jinan Future Chemical Industry!

In today’s rapidly developing technological era, anthraquinone, as an important chemical raw material, is leading the innovation and transformation of multiple industries with its unique properties and wide application fields. Whether it is medicine, dyes, papermaking, or new energy and environmentally friendly materials, anthraquinone has demonstrated irreplaceable value.

Anthraquinone Series Product Catalog

Diversification and advancement of anthraquinone production processes

(I) Anthracene gas-phase catalytic oxidation method

Using refined anthracene as raw material, air as oxidant, and vanadium pentoxide as catalyst, gas-phase catalytic oxidation is carried out. The reactor has two types: fixed bed and fluidized bed. This process plays an important role in industrial production and can efficiently convert refined anthracene into anthraquinone.

(II) Phthalic anhydride method

This method uses phthalic anhydride and benzene as raw materials and aluminum chloride as a catalyst to carry out a Friedel-Crafts reaction and then dehydrates with concentrated sulfuric acid to generate anthraquinone. The phthalic anhydride method is divided into the solvent method, the ball milling method, and the gas phase condensation method. Its advantages are that the raw materials are easy to obtain and can be made from petroleum, the reaction temperature is low, the equipment is simple, and there are few side reactions. However, there are also disadvantages such as serious pollution, difficult treatment of aluminum chloride waste acid wastewater, and high production cost. At present, China mainly uses the phthalic anhydride method to synthesize anthraquinone. ​

(III) Naphthoquinone method​

Using naphthoquinone and butadiene as raw materials and cuprous chloride as a catalyst, anthraquinone is obtained after a condensation reaction and dehydrogenation. With the rapid development of the petrochemical industry, the supply of butadiene and naphthoquinone raw materials is sufficient. This method has the advantages of low consumption and less waste. It has reached a considerable scale in Japan and the United States and has great development prospects. ​

(IV) Styrene method​

Styrene is first dimerized, then oxidized to o-benzoylbenzoic acid, and then cyclized to anthraquinone. The raw materials of this method are easy to obtain, there is no aluminum salt wastewater pollution problem of the phthalic anhydride method, and the product cost is relatively low. However, the reaction conditions are harsh, the technology is complex, and the equipment requirements are high.

Industry application of anthraquinone

(I) Core intermediates in the dye industry​

Anthraquinone is an important intermediate for various dyes, especially bright blue and red dyes. As early as 1936, the first anthraquinone disperse dye, Serisol Brilliant Blue BG, was developed and became one of the first registered disperse dyes (C.I. Disperse Blue 3). At present, anthraquinone disperse dyes, acid dyes, vat dyes, reactive dyes, etc. have developed into dye categories with a complete color spectrum and good performance. There are more than 400 varieties of anthraquinone dyes, which occupy an important position in the field of synthetic dyes. ​

(II) High-efficiency additives in the papermaking industry​

Used as papermaking cooking agents and hydrogen peroxide raw materials, only a small amount of anthraquinone needs to be added to the alkaline cooking liquid to accelerate the delignification rate, shorten the cooking time, increase the pulp yield, and reduce the waste liquid load. With the increasing environmental protection requirements, more and more paper mills use anthraquinone additives, and its application prospects in the papermaking industry are very broad. ​

(III) Potential value in the medical field​

Many medicinal plants with medical effects, such as aloe vera, contain anthraquinone complexes. The anthraquinone complex in aloe vera gel has the effects of anti-inflammation, detumescence, analgesia, antipruritic, and inhibiting bacterial growth and can be used as a natural medicine for wound healing. Although the application of anthraquinone in the medical field has not yet been widely popularized, with the deepening of research, its potential medicinal value is gradually being explored. ​

(IV) Key raw materials for chemical synthesis​

In organic synthesis, anthraquinone is an advanced dye intermediate and an important raw material for indanthrene-type reducing dyes, acid dyes, and some active dyes. At the same time, the anthraquinone method using alkyl anthraquinone is the best method for producing hydrogen peroxide. In the field of chemical synthesis, anthraquinone series products are everywhere, providing key raw material support for the production of many chemical products.

(V) New energy and environmental protection:

The application of anthraquinone in the field of new energy, especially in flow batteries, has demonstrated its excellent electrochemical performance. It can effectively improve the energy density and cycle life of the battery, providing strong support for the storage and utilization of clean energy.

(VI) Environmentally friendly materials:

Anthraquinone is also widely used in the research and development of environmentally friendly materials, such as high-efficiency adsorbents and catalysts, to help reduce the discharge of industrial waste gas and wastewater and promote sustainable development.

(VII) Electronic materials:

With the rapid development of electronic technology, the demand for high-performance materials is increasing day by day. Anthraquinone series products have emerged in the fields of organic semiconductors and battery materials with their good electronic transmission performance. Used in the manufacture of organic light-emitting diodes (OLEDs), it can improve luminous efficiency and display quality; used in lithium-ion battery electrode materials, it can optimize battery charging and discharging performance, extend service life, and contribute to the miniaturization and high performance of electronic equipment.

Why choose anthraquinone?

High-efficiency performance: Anthraquinone has shown excellent performance in many fields and can significantly improve the quality and efficiency of products.

Green and environmental protection: The application of anthraquinone helps to reduce environmental pollution and promote green production and sustainable development.

Widely used: From medicine to new energy, from papermaking to environmentally friendly materials, anthraquinone is used everywhere and has unlimited potential.

Successful Cases

(I) Dye Industry: Color Innovation Leads Market Trends

Jiangsu Yabang Dye Co., Ltd., and its subsidiary Jiangsu Huaer Chemical Co., Ltd., have long focused on the innovative research and development of anthraquinone structure dyes. With their anthraquinone series of products, they have successfully developed a series of high-quality anthraquinone dyes for dyeing medium and high-end textile fabrics. These dyes are bright in color and high in fastness, making textile fabrics stand out in the market, meeting consumers’ demand for high-quality clothing, significantly increasing product added value, and allowing the company to occupy a leading position in the fiercely competitive dye market and become a benchmark enterprise in the industry.

Wuhai Qingshi Chemical Co., Ltd. uses organic synthetic raw materials such as benzene, methylnaphthalene, and anthraquinone, which are by-products of coking, as raw materials to produce high-fastness disperse dyes. After the product was put on the market, it quickly gained customer recognition due to its excellent water-washing and sun-resistant properties, and orders continued to flow in. The company’s high-fastness disperse dyes are widely used in automotive interiors, quick-drying sportswear, school uniforms, military uniforms, and other fields, providing these products with a long-lasting and bright color guarantee and realizing the successful transformation of coal chemical primary products into high-value-added terminal products.​

(II) Papermaking industry: improving quality and efficiency to achieve green development​

A large papermaking enterprise introduced anthraquinone additives in the production process. By adding a small amount of anthraquinone to the alkaline cooking liquor, the original time-consuming cooking process was significantly optimized. The delignification speed was greatly accelerated, the cooking time was shortened by nearly one-third, the pulp yield was increased by about 8%, and the pollutant load in the waste liquid was reduced by about 15%. This not only improves production efficiency and reduces production costs but also reduces pollution to the environment, helping enterprises achieve green and sustainable development. ​

(III) Chemical synthesis field: innovation-driven to promote industrial upgrading​

The research group of Professor Han Zhiji of the School of Chemistry of Sun Yat-sen University used low-cost anthraquinone dyes as photosensitizers and non-precious metal cobalt complexes as catalysts to construct a catalytic hydrogen production system under red light. The system has a stability of up to 168 hours, a catalytic conversion number of up to 780,000, a conversion frequency of more than 7,000 times per hour, and a quantum efficiency of more than 30%, which provides new ideas for the development and utilization of the full solar spectrum for various photocatalytic reactions and promotes technological progress in the preparation of clean energy in the field of chemical synthesis.​

Product advantages of Jinan Future Chemical Anthraquinone​

(I) Excellent quality​

We use advanced production technology and a strict quality control system to ensure that each batch of anthraquinone series products meets national standards and even exceeds the industry average. Whether it is the purity, stability, or various physical and chemical indicators of the products, we can provide customers with reliable guarantees. ​

(II) Technological innovation​

We work closely with professional scientific research institutions and universities and continuously invest in R&D resources to carry out technological innovation in anthraquinone series products. For example, the new generation of anthraquinone hydrogenation catalyst we developed has greatly improved both activity and selectivity. In the application of 24 large-scale hydrogen peroxide production units of enterprises such as Jiangxi Shilong, Henan Baililian, and Henan Xinlianxin, the use of this catalyst has been reduced by more than 30%, the activity has been increased by 20% – 30%, the tetrahydroanthraquinone generation rate has been reduced by 40%, and the anthraquinone consumption has been reduced by more than 12%. ​

(III) Customized service​

We are well aware that the needs of different customers are different, so we provide customized services. According to the specific requirements of customers in different application fields, we can customize the production of anthraquinone series products to meet the diverse needs of customers.​

Whether you are a leader in the dye industry or a practitioner in the fields of papermaking, medicine, and chemicals, anthraquinone products will bring new opportunities for your business development. We have high-quality products, innovative technologies, and a professional service team. We look forward to working with you to jointly unlock the infinite possibilities of anthraquinone products and create more brilliant achievements in your respective fields.