When discussing China's coal chemical industry and high-performance nylon raw materials, Shandong Hualu Hengsheng Chemical Co., Ltd. stands out as one of the country's leading manufacturers. Among its flagship products, Purified Adipic Acid plays a vital role in the company's advanced materials business and serves as the cornerstone of its integrated Nylon 66 value chain.
Supported by its proprietary "one feedstock, multiple product lines" flexible production model, vertically integrated upstream supply chain, and self-developed low-carbon manufacturing technologies, Hualu Hengsheng has become one of the world's leading adipic acid producers. Its Purified Adipic Acid is widely recognized for outstanding purity, consistent quality, competitive production costs, and reliable global supply, serving customers across the textile, automotive, polyurethane, and electronics industries.
Located in Dezhou, Shandong Province, Hualu Hengsheng traces its history back to Dezhou Fertilizer Plant, established in 1968. Today, it is a state-controlled listed enterprise that has remained committed to chemical manufacturing for decades while continuously expanding its integrated chemical industrial park.
Unlike many producers that depend heavily on external raw material suppliers, Hualu Hengsheng has built a fully integrated production system. Key feedstocks required for Purified Adipic Acid—including cyclohexanol, liquid ammonia, hydrogen, and synthesis gas—are all produced within its own industrial complex. This vertical integration minimizes exposure to raw material price fluctuations, supply chain disruptions, and logistics risks while maintaining production costs well below industry averages.
The company has expanded its adipic acid business through two major development phases.
The first stage focused on quality enhancement through advanced purification technologies, including a three-stage crystallization process that significantly improved color stability, melting point consistency, and overall product quality.
The second milestone came at the end of 2024, when Hualu Hengsheng successfully commissioned a 200,000-ton/year adipic acid facility as part of its high-end Nylon 66 materials project. The company's total Purified Adipic Acid production capacity now exceeds 500,000 tons annually, complemented by 42,000 tons/year of hexamethylene diamine (HMDA) and 80,000 tons/year of Nylon 66 production capacity.
This integrated "Adipic Acid–HMDA–Nylon 66" industrial chain positions Hualu Hengsheng among the few Chinese manufacturers capable of producing the complete C6 nylon value chain from raw materials to finished engineering plastics.
Purified Adipic Acid (CAS No. 124-04-9) is a white crystalline powder and an essential monomer used in the production of:
Because downstream industries require exceptional purity and color stability, product quality directly affects fiber spinning, plastic molding, and engineering performance.
Hualu Hengsheng employs a proprietary nitric acid oxidation process combined with inert gas drying and purification technology, enabling the company to consistently deliver premium-grade adipic acid with performance exceeding many industry standards.
These performance characteristics make the product particularly suitable for transparent films, premium textile fibers, engineering plastics, and automotive components.
Hualu Hengsheng operates an integrated combined heat and power system with more than 80% self-sufficiency in steam and electricity.
Multiple production units share common utility systems, allowing energy consumption to reach China's benchmark level for advanced chemical manufacturing, with energy usage as low as 420 kg standard coal equivalent per ton of product.
The company continuously upgrades its oxidation technologies to reduce nitrogen oxide emissions while improving production efficiency.
Additional sustainability initiatives include:
These advantages allow Hualu Hengsheng's Purified Adipic Acid to be exported confidently to Europe, Southeast Asia, the Middle East, and other international markets.
To accommodate customers across different industries, Hualu Hengsheng provides standardized packaging solutions including:
All packaging is moisture-resistant and sealed to prevent caking during long-distance ocean or land transportation.
As one of the most versatile C6 chemical intermediates, Purified Adipic Acid serves a wide variety of industries.
This represents the largest application segment.
The product is used in manufacturing:
Purified Adipic Acid is widely used in:
Its excellent flexibility and low-temperature performance make it an ideal raw material for demanding polyurethane applications.
The product also serves as an important intermediate in the production of:
Growing applications include:
These fast-growing markets continue to expand long-term demand for high-purity adipic acid.
As one of China's largest adipic acid producers, Hualu Hengsheng operates manufacturing bases in Dezhou and Jingzhou, ensuring stable production capacity, reliable inventory, and long-term supply contracts for domestic and international customers.
The company's proprietary "one feedstock, multiple product lines" production platform enables rapid adjustment between adipic acid, methanol, dibasic acids, acetic acid, and other downstream products according to market demand.
This flexibility helps stabilize pricing and ensures uninterrupted customer supply even during industry downturns.
Hualu Hengsheng complies with comprehensive environmental and production certifications, allowing products to pass export inspections efficiently.
Its Purified Adipic Acid is supplied to polyurethane manufacturers, textile companies, and engineering plastics producers throughout Southeast Asia, the Middle East, and Europe.
Supported by a National Enterprise Technology Center and Postdoctoral Research Station, the company continues developing specialty grades featuring:
These innovations support domestic substitution for premium imported raw materials.
China continues to experience strong demand for Nylon 66 raw materials while relying heavily on imported intermediates.
Hualu Hengsheng's long-term strategy is centered on expanding its integrated C6 industrial chain.
The company will continue increasing production capacity for:
Through complete vertical integration from Adipic Acid → HMDA → Nylon 66, Hualu Hengsheng aims to establish one of China's most competitive and self-sufficient Nylon 66 industrial ecosystems while supporting domestic supply chain security.
Meanwhile, its dual manufacturing bases in Dezhou and Jingzhou will continue expanding into new energy chemicals and specialty materials, balancing traditional chemical manufacturing with high-value advanced materials for sustainable long-term growth.
From a small regional fertilizer factory to one of the world's leading Purified Adipic Acid manufacturers, Shandong Hualu Hengsheng Chemical Co., Ltd. has demonstrated that long-term competitiveness in the chemical industry depends on vertical integration, proprietary technologies, and uncompromising product quality.
As global demand continues to grow for Nylon 66, lightweight automotive materials, sustainable polymers, and advanced engineering plastics, Hualu Hengsheng Purified Adipic Acid will continue delivering high purity, cost efficiency, reliable supply, and environmentally responsible manufacturing—helping customers worldwide build the next generation of high-performance materials while strengthening China's position in the global C6 new materials industry.
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