Mineral processing wastewater treatment flocculant, wastewater treatment flocculant, precipitant, anionic polyacrylamide, polyacrylamide, PAM

Detailed Product Description of Anionic Polyacrylamide (APAM) for Mineral Processing

1. Ⅰ.Product Overview
   
   
   
   Anionic Polyacrylamide (APAM) for mineral processing is a linear water-soluble polymer with a large number of anionic groups such as carboxyl groups in its molecular chain. It achieves rapid solid-liquid separation through adsorbing suspended particles in the pulp, charge neutralization, and bridging flocculation. It is an indispensable high-efficiency flocculant, settling agent, and filter aid in the mineral processing industry. It features good water solubility, high flocculation efficiency, low dosage, and strong adaptability. It is widely used in the mineral processing of various ores such as iron ore, aluminum ore, copper ore, lead-zinc ore, and coal. It can significantly improve mineral processing efficiency, reduce production costs, and minimize environmental pollution. It complies with the national standard GB/T 17514-2017 and is one of the core additives for mining enterprises to enhance production efficiency.

IV. Specification Parameters

The specification parameters of APAM for mineral processing can be flexibly adjusted according to the mineral processing technology, ore type, and processing requirements. The core parameters comply with the national standard GB/T 17514-2017. The common specifications and detailed parameters are as follows (can be customized on demand):

1. 1.Appearance: White or slightly yellow granules or powder, with no visible impurities and no caking (slightly loose caking is acceptable and easy to crush). Colloidal products are colorless or slightly yellow colloids (solid products commonly used in mineral processing), meeting the requirements of Article 4.1 of GB/T 17514-2017.
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1. 1.Batch Division: Each batch of products shall not exceed 20 tons. Products of the same batch, same specification, and same production process shall be regarded as one batch to ensure batch consistency, facilitating quality traceability and inspection management.
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3. 2.Sampling Method: For sampling solid products, insert the sampler vertically to 3/4 of the depth of the material layer. Use the quartering method to reduce the sampled product to no less than 200g, and subpackage it into two clean and dry plastic bottles. Seal the bottles, attach labels on the bottles indicating the manufacturer's name, product name, batch number, sampling date, and sampler's name. One bottle is for inspection, and the other is kept for three months for future reference. For colloid products, sampling shall be conducted in accordance with Article 7.3 of GB/T 6680-2003 to ensure the representativeness of the sample and avoid sampling deviation affecting the inspection results.
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5. 3.Inspection Items: The factory inspection items include appearance, solid content, dissolution time, water-insoluble substances, molecular weight, anion degree, and residual acrylamide monomer. Each batch of products must undergo inspection and can leave the factory only if qualified. Type inspection requires full-item testing, which shall be conducted at least once a year to ensure the long-term stability of product quality and compliance with standard requirements.
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7. 4.Judgment Rules: The rounding value comparison method specified in GB/T 8170 shall be adopted to judge whether the inspection results meet the requirements. If any index in the inspection results does not meet the requirements of this standard, sampling and verification shall be re-conducted from twice the number of packaging units. If the verification result still has one index that does not meet the requirements of this standard, the entire batch of products shall be deemed unqualified and is prohibited from leaving the factory and being sold, ensuring that all products entering the market are qualified.

1. 1.Appearance: Visual inspection. Check the color and state of the product under natural light to determine if they meet the appearance requirements, ensuring there are no visible impurities or obvious agglomerates.
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3. 2.Molecular weight: The viscosity method (GB/T 12005.10) is adopted. An Ubbelohde viscometer is used to determine the intrinsic viscosity, and the molecular weight is calculated via the Mark-Houwink equation. The temperature is controlled at 30±0.1℃ to ensure measurement accuracy, with the relative deviation of parallel determination results ≤10%.
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5. 3.Solid content: The oven drying method (GB/T 12005.2) is used. An appropriate amount of sample is weighed and dried at 105±2℃ to constant weight, and the solid mass percentage is calculated. The relative deviation of parallel determination results is ≤0.5% to ensure the accuracy of solid content detection.
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7. 4.Residual acrylamide monomer: High-performance liquid chromatography (HPLC, Appendix B of GB/T 17514) is employed. The detection process must be carried out in the dark to prevent acrylamide from decomposing when exposed to light, ensuring the accuracy of the detection results and compliance with environmental protection limit requirements.
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9. 5.Other indicators: The degree of hydrolysis is determined by acid-base titration (GB/T 12005.6) under constant temperature (25±1℃) conditions; water-insoluble substances are measured by the filtration method; screen residues are determined by the vibrating screen method (GB/T 6003.1). All testing methods comply with the national standard GB/T 17514-2017 and relevant industry standards to ensure the authority and reliability of the testing results, providing a guarantee for product quality.

1. Ⅵ.Product Detail Image (Powdery Form)

Product detail image (granular)

Comparison chart of product specifications

Product packaging diagram (25kg standard package)

1. 1.Solution Preparation: Add the product to stirring clean water at a concentration of 0.1%-0.3% (i.e., add 1-3g of the product to 1L of water) slowly. Control the stirring speed at around 200rpm to avoid shear degradation. Stir for 15-45 minutes until it is completely dissolved, forming a transparent and uniform aqueous solution. Avoid the formation of "fish eyes" (undissolved particles) to ensure the agent is fully dissolved and effective.
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3. 2.Dosing Method: Use a metering pump to uniformly add the prepared aqueous solution to the ore slurry, tailings, or wastewater to be treated. The dosage is determined according to on-site small-scale tests (usually 10-50g per ton of ore slurry). After dosing, stir evenly to ensure sufficient contact between the agent and the materials to be treated, so as to improve the flocculation effect. It can be used in conjunction with inorganic coagulants. First, add the inorganic coagulant, stir evenly, and then add APAM to synergistically enhance the treatment effect.
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5. 3.Adjustment and Optimization: Adjust the dosage and preparation concentration in a timely manner according to on-site conditions such as ore slurry concentration, pH value, and particle size. If the ore slurry concentration is too high, the dosage can be appropriately increased; if the pH value is acidic, adjust the pH value to neutral or alkaline first, and then add APAM to ensure the best flocculation effect, reduce the cost of agent use, and improve treatment efficiency.

1. 1.Storage: The product should be stored in a cool, ventilated, and dry warehouse, away from fire and heat sources. It should be protected from moisture, rain, and direct sunlight, with a shelf life of 1 year. When storing, it must be placed on pallets to avoid direct contact with the ground, preventing moisture absorption and caking. Products of different specifications should be stored separately with clear labels to avoid confusion, ensuring stable product performance and preventing performance degradation due to improper storage.
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3. 2.Operation: Operators should wear dust masks and gloves to prevent inhalation of product powder into the respiratory tract or contact with the skin. If it accidentally comes into contact with the skin, rinse immediately with clean water. If accidentally inhaled, move to a well-ventilated area promptly and seek medical attention if necessary. The operation site should maintain good ventilation to prevent powder from flying, ensuring operational safety and compliance with chemical product operation specifications.
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5. 1. 3.Preparation: When preparing the solution, clean water (tap water or well water is acceptable) should be used. Avoid using water containing impurities or oil stains, as this may affect the dissolution effect and flocculation performance. The product should be added to water slowly; avoid adding a large amount at one time to prevent caking, which would affect the dissolution and use effect. The dissolved aqueous solution should be used up within 24 hours. Avoid long-term storage to prevent performance degradation and ensure the agent exerts its best effect.
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7. 4.Emergency treatment: If the product leaks, the leaked powder should be collected promptly to avoid dust. After collection, it should be properly disposed of and must not be discarded at will to prevent environmental pollution. If the aqueous solution leaks, it can be diluted with clean water and then treated according to the mineral processing wastewater treatment process to ensure compliance with environmental protection requirements and avoid water pollution.
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9. 5.Compatibility: It must not be stored or used in mixture with strong acidic or strong alkaline substances to avoid chemical reactions that cause the product to fail. When used in conjunction with inorganic coagulants, attention should be paid to the order of addition and interval time to ensure a synergistic effect, avoiding mutual interference between agents that affects the treatment effect.

1. 1.Covered transport vehicles (such as box trucks) shall be used for transportation. It is strictly prohibited to expose the products to rain, sun, and moisture. Avoid product leakage and caking caused by packaging damage. During transportation, handle with care, avoid violent impact and extrusion, prevent packaging damage, ensure the products are intact, and avoid affecting product performance due to improper transportation.
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1. 1.High Efficiency and Energy Saving: It has high flocculation efficiency and low dosage, which can significantly reduce the cost of chemical agents and the energy consumption of equipment operation, improve mineral processing efficiency, shorten processing time, help enterprises reduce production costs and enhance production efficiency. Compared with ordinary flocculants, it can save more than 30% of chemical dosage and improve processing efficiency by more than 20%, creating greater value for enterprises.