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Jiangsu Hengfeng has become a professional production and research and development base for water treatment chemicals and oilfield chemicals in China.

  • Anionic PAM for Zinc Tailings Recovery

    Mechanisms: How polyacrylamide precipitates and bridges organic colloidal particles Polyacrylamide (PAM) causes removal of organic colloids primarily by two complementary physical–chemical mechanisms: charge neutralization (precipitation) and bridging flocculation. In charge neutralization, cationic PAM (or partially hydrolyzed PAM in the presence of multivalent cations) reduces the electrostatic ...

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  • Anionic vs. Nonionic Polyacrylamide Flocculants: Mining Industry Applications

    1.1 Anionic Polyacrylamide Anionic polyacrylamide (PAM) is a water-soluble polymer that carries a negative charge. It is commonly used in various industrial applications, such as wastewater treatment and paper manufacturing. The negative charge of the polymer makes it effective in flocculating positively charged particles, facilitating their removal from aqueous systems. 1.1.1 Definition and Ch...

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  • Polyacrylamide in Drilling, Completion and Cementing Fluids- Practical Uses, Selection & Field Guidelines

    This article explains practical, field-focused guidance for using polyacrylamide (PAM) in drilling fluids, completion fluids and cementing fluids. It covers why PAM is chosen, how to select the right type, typical dosages, laboratory tests you should run before field use, step-by-step mixing/dosing procedures, and common troubleshooting. The emphasis is on actionable instructions that engineers, f...

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  • Jiangsu Hengfeng Fine Chemical Shines at FENASAN 2025 in São Paulo, Brazil

    From October 21 to 23, 2025, Jiangsu Hengfeng Fine Chemical Co., Ltd. successfully participated in the FENASAN 2025 Exhibition, held at the Expo Center Norte in São Paulo, Brazil. As one of the largest and most prestigious exhibitions in Latin America for the water and wastewater treatment industry, FENASAN brought together leading suppliers, engineering companies, and environmental experts from ...

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