Polyacrylamide Application and Considerations in the Mining Industry

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Polyacrylamide (PAM) is a type of high molecular weight water treatment agent that has wide applications in the mining industry. This article will provide an overview of PAM and its product characteristics, and discuss in detail its application methods, considerations, and conclusions in the mining industry.

Overview and Product Characteristics of Polyacrylamide:

Polyacrylamide is a linear polymer compound formed by the polymerization of acrylamide monomers. Based on its charge properties, it can be divided into cationic polyacrylamide (CPAM), anionic polyacrylamide (APAM), and non-ionic polyacrylamide (NPAM). PAM has excellent solubility, flocculation performance, and turbidity reduction properties, and plays an important role in the mining industry.

Application of Polyacrylamide in the Mining Industry:

(1) Mineral Processing: In the mineral processing process, PAM is mainly used as a flotation agent. By adding an appropriate amount of PAM, the hydrophilicity of the mineral surface can be increased, and the amount of flotation reagent can be reduced. In this process, anionic polyacrylamide (APAM) and non-ionic polyacrylamide (NPAM) are more common. Choosing the appropriate type of PAM can improve the mineral recovery rate and flotation effect.

(2) Tailings Treatment: Tailings are waste materials produced in the mineral processing process, containing a large amount of solid particles and harmful substances. PAM can be used as a flocculant to promote the aggregation of solid particles in tailings, thereby reducing the turbidity of tailings. Cationic polyacrylamide (CPAM) is widely used in tailings treatment. By using PAM reasonably, the treatment effect of tailings and environmental protection level can be improved.

(3) Mine Wastewater Treatment: Mine wastewater contains a large amount of suspended solids, heavy metals, and other harmful substances, causing serious environmental pollution. PAM can be used as a flocculant to effectively promote the sedimentation of suspended solids in wastewater and reduce the content of harmful substances in water. Depending on the specific properties of the wastewater, the appropriate type of PAM can be selected for treatment. In mine wastewater treatment, PAM can be used in combination with other treatment agents to achieve better treatment effects.

Considerations when Using Polyacrylamide in the Mining Industry:

(1) Select the appropriate type and molecular weight of PAM according to the properties of the ore, tailings, or wastewater.

(2) Prepare the PAM solution correctly, control the appropriate concentration and dosage, to ensure treatment effect while avoiding resource waste.

(3) Strictly follow safety operating procedures to prevent harm to human health and the environment.

(4) Regularly test and evaluate the treatment effect and adjust the treatment process according to actual conditions.


Polyacrylamide (PAM) has significant value in the mining industry, and its excellent flocculation performance and environmental characteristics make it a key processing agent in this field. By selecting the appropriate type, molecular weight, and dosage of PAM, the efficiency of mineral processing, tailings treatment, and mine wastewater treatment can be effectively improved, achieving the purpose of reducing pollution, increasing recovery rates, and resource utilization. When using PAM, it is important to choose the appropriate type and molecular weight, prepare the solution correctly and control the appropriate concentration and dosage, strictly follow safety operating procedures, regularly test and evaluate the treatment effect, to achieve the best treatment results and environmental benefits.

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