Vanconol® MNC-02 Acidizing Corrosion Inhibitor: Acetophenone Mannich Base Sets a New Standard for Oil & Gas Field Acidizing Corrosion Protection

Vanconol® MNC-02 is a high-performance acidizing corrosion inhibitor based on an acetophenone-modified ternary Mannich base, developed by Tianjin Hi-Perferal Advanced Materials Co., Ltd. This product features an active matter content of 50% and delivers excellent corrosion protection under demanding acidizing conditions.

Breakthrough Solubility in Acid Solutions

Vanconol® MNC-02 incorporates unique hydrophilic hydroxyl groups in its molecular structure, addressing the common issue of poor solubility of conventional Mannich base products in concentrated acids. In high-concentration hydrochloric acid and mud acid systems, the product exhibits rapid dissolution and uniform dispersion without requiring additional surfactants.

According to the SY/T5405-2019 standard “Test Method and Evaluation Index for Acidizing Corrosion Inhibitors,” under conditions of 90°C and 20% hydrochloric acid, the measured corrosion rate is only 5.2 g/(m²·h), which is below the standard requirement of 6.00 g/(m²·h), providing reliable corrosion protection for oil and gas field acidizing operations.

Excellent Corrosion Inhibition Performance

Vanconol® MNC-02 is synthesized via a Mannich reaction using a proprietary process to produce molecules with multi-site adsorption structures. Its corrosion inhibition mechanism includes: the interaction of the benzene ring π-electron system with the d-orbitals of the metal surface to form chemical adsorption anchor points; coordination of lone-pair electrons from the carbonyl (C=O) group with iron atoms to enhance adsorption strength; protonation of the tertiary amine group under acidic conditions to form cations that electrostatically adsorb to the metal surface; and the hydroxyl group providing hydrophilicity to improve solubility in acid solutions.

This unique molecular structure enables the product to form a dense hydrophobic protective film on the metal surface, effectively blocking the attack of corrosive media. Even at high temperatures up to 140°C, the product demonstrates strong performance, offering robust equipment protection under harsh acidizing conditions.

Wide Application Areas

Vanconol® MNC-02 is suitable for a broad range of applications, including:

• Oil & gas field development: corrosion protection for downhole equipment, refining equipment, gathering pipelines, and storage tanks, extending equipment life and reducing maintenance costs.
• Industrial cleaning: effective prevention of over-acid corrosion during acid cleaning processes, protecting base metals from damage.
• Water treatment: applicable to feed water purification, circulating water treatment, recirculating cooling systems, and boiler water treatment, helping to avoid under-deposit corrosion.
• Petrochemical refining: as a low-temperature corrosion inhibitor for refining units, protecting equipment from corrosion damage.

Flexible Usage Guidelines

Vanconol® MNC-02 is easy to use. Operators can directly dilute the product with the acidizing fluid and stir for 10–15 minutes to achieve uniform dispersion. Recommended dosage varies by application: for oil & gas field acidizing (below 90°C), add 0.8%–1.0%; (90–120°C), add 1.5%–2.0%; for industrial cleaning, add 0.5%–1.0%; for circulating water treatment, add 50–200 ppm.

The product exhibits good compatibility with various acidizing additives, including iron stabilizers (EDTA, citric acid), clay stabilizers (potassium chloride, polyquaternary ammonium salts), and flowback aids (fluorinated surfactants), providing flexible formulation options for users.

Industry Application Outlook

As oil and gas field development moves to deeper formations, acidizing conditions become increasingly severe, placing higher demands on corrosion inhibitor performance. Meanwhile, stricter environmental regulations are driving the demand for non-toxic, biodegradable corrosion inhibitors. Vanconol® MNC-02, with its excellent acid solubility, efficient corrosion inhibition performance, and environmentally friendly profile, aligns with industry trends and offers broad market potential.

Technical Support & Services

Tianjin Hi-Perferal Advanced Materials Co., Ltd. has extensive technical expertise and industry experience in corrosion inhibitors. The company provides a professional technical service team capable of offering on-site fluid preparation guidance, corrosion inhibition monitoring and evaluation, acidizing formulation optimization suggestions, and customized dosage design to ensure customers achieve optimal application results.

Conclusion

The launch of Vanconol® MNC-02 represents a significant breakthrough in acidizing corrosion inhibitor technology for Tianjin Hi-Perferal and reflects the ongoing transformation of China’s petrochemical industry toward greener and more sustainable development. We invite customers and partners from oil and gas field development, petrochemical refining, water treatment, and other sectors to explore the full potential of acidizing corrosion protection and join us in creating a greener manufacturing future.

About Tianjin Hi-Perferal Advanced Materials Co., Ltd.

Tianjin Hi-Perferal Advanced Materials Co., Ltd. specializes in the R&D, production, and sales of high-performance surfactants. Its main products include Toynol® dispersants and Vanconol® corrosion inhibitor series. The company has a complete technical R&D and quality management system. Its products are widely used in coatings, inks, textiles, leather, oil & gas, electronics, and other industries. Hi-Perferal is a trusted partner for its customers.