China Anionic Polyacrylamide PAM Manufacturer & Technical Solutions

High-Molecular Weight Polymer Innovation for Industrial Wastewater, Enhanced Oil Recovery, Mining, and Papermaking

Featured Industrial Polyacrylamide Products

Engineered for Maximum Flocculation, Dewatering, and Rheology Modification

China PAM Anionic Polyacrylamide Dry & Wet Strength Agent

China PAM Anionic Polyacrylamide Dry & Wet Strength Agent for Paper Industry

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High Molecular Weight Nonionic Polyacrylamide

Wholesale High Molecular Weight Nonionic Polyacrylamide for Coal Washing

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Anionic Polyacrylamide Powder Flocculant

Anionic Polyacrylamide Powder Flocculant for Food & Sugar Refining

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Nonionic Polyacrylamide NPAM Mineral Processing

Nonionic Polyacrylamide (NPAM) for Mineral Processing & Ore Dressing

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Anionic Polyacrylamide APAM Municipal Sewage

Anionic Polyacrylamide (APAM) for Municipal Sewage & Sludge Dewatering

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China Cationic Polyacrylamide Supplier

China Cationic Polyacrylamide (CPAM) High Charge Density Manufacturer

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High Molecular Weight Anionic Polyacrylamide

High Molecular Weight Anionic Polyacrylamide for Petrochemical Wastewater

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Cationic Polyacrylamide Powder Industrial Wastewater

Cationic Polyacrylamide Powder for Municipal & Industrial Wastewater

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About Oubo Chemical Co., Ltd.

Pioneering Bio-Catalytic Synthesis & Global Polymer Supply Chain Excellence

Enterprise Profile & Growth Milestones

Established in 2011 inside the strategic Free Trade Zone of Qingdao, China, Qingdao Oubo Chemical Co., Ltd. (Brand: O'brien) has solidified its position as an international leader in synthetic resin and water-soluble polymer manufacturing. Over the past decade, Oubo has maintained a consistent annual business growth rate exceeding 10%, breaking through an annual polyacrylamide production capacity of 50,000 Metric Tons in 2018.

Our operation operates under strict ISO9001:2008 Quality Management System standards. We believe that global industrial growth must harmoniously coexist with environmental stewardship. Consequently, Oubo minimizes environmental impacts during both polymer synthesis and field application.

Patented Biological Production & R&D Rigor

Unlike traditional chemical synthesis routes that rely on high-energy catalytic hydration, Oubo utilizes proprietary biological enzymatic methods for monomer preparation and polymerization. This patented technology significantly reduces residual monomer toxicity (maintaining ultra-low acrylamide monomer levels) and ensures superior linear molecular chain length.

To retain our technical edge, Oubo reinvests €2 Million annually into R&D. Our fully automated production lines are fed by top-tier global upstream chemical suppliers, including SINOPEC, Eni, and other Fortune 500 chemical leaders. Every batch undergoes a rigorous 3-stage QC verification process prior to global dispatch.

50,000+
Metric Tons / Year Capacity
€2,000,000
Annual R&D Investment
ISO9001
Quality System Certified
100%
3-Stage Batch QC Testing

Molecular Engineering of Anionic Polyacrylamide (APAM)

Understanding Molecular Weight, Charge Density, and Coagulation Mechanisms

Polyacrylamide (PAM) with the chemical structure (-CH2CHCONH2-)n is a linear synthetic polymer soluble in water but insoluble in most organic solvents. Anionic Polyacrylamide (APAM) is produced by copolymerizing acrylamide (AM) with acrylic acid or sodium acrylate, or via the partial hydrolysis of nonionic polyacrylamide under alkaline conditions.

Molecular Weight (MW) Range

APAM features an exceptionally long carbon-carbon backbone. Oubo manufactures APAM tailored across a broad molecular weight spectrum from 6 Million to over 25 Million Daltons. Higher molecular weights provide extended polymer chains capable of bridging distant suspended particles across liquid media.

Hydrolysis & Charge Density

Degree of Hydrolysis (DH) indicates the percentage of carboxylate groups (-COO⁻) present along the chain, typically ranging from 5% to 80%. Charge density dictates the electrostatic interaction with positively charged inorganic particles such as clay, metal oxides, and mineral tailings.

Flocculation Mechanisms

APAM operates primary via two mechanisms: Electrostatic Charge Neutralization and Interparticle Polymer Bridging. Once dissolved, the extended polymer chain adsorbs onto suspended solids, binding multiple particles into heavy, dense macro-flocs for rapid sedimentation.

Technical Information Gain Matrix: Polyacrylamide Variants & Physicochemical Properties

Polymer Ionic Type Active Functional Group Molecular Weight (Million) Charge Degree Range Primary Industrial Application Target
Anionic Polyacrylamide (APAM) Carboxyl (-COO⁻) 6 - 25 MW 5% - 80% Anionic Neutral/Alkaline Industrial Wastewater, Mining, Paper Wet-End, EOR
Cationic Polyacrylamide (CPAM) Quaternary Ammonium (-R4N⁺) 4 - 12 MW 10% - 80% Cationic Organic Sludge Dewatering, Municipal Sewage, Biological Wastewater
Nonionic Polyacrylamide (NPAM) Amide (-CONH2) 5 - 15 MW Neutral (< 1%) Acidic Wastewater Processing, Mineral Leaching, Soil Stabilization

Macro Industrial Solutions & Application Scenarios

Engineered Polymer Formulations Tailored to Severe Technical Environments

1. Industrial & Municipal Water Treatment

In solid-liquid separation processes, APAM acts as an unmatched clarification and dewatering agent. In industrial wastewater (petrochemical, steel plant, electroplating, sand washing), negatively charged APAM interacts with inorganic suspended solids neutralized by primary coagulants (such as PAC or Ferrous Sulfate).

Key Benefits: Accelerates settlement speeds up to 5-fold, improves supernatant clarity, reduces sludge volume, and optimizes operational throughput in clarifiers, dissolved air flotation (DAF) units, and belt filter presses.

2. Enhanced Oil Recovery (EOR) & Oilfield Drilling

During secondary and tertiary oil recovery, high molecular weight APAM increases the viscosity of injected water. This mobility control mechanism improves sweep efficiency across heterogeneous reservoir rocks, driving trapped crude oil toward recovery wells.

In drilling fluids, APAM functions as a viscosifier, fluid-loss reducer, shale inhibitor, and lubricating agent. It prevents wellbore collapse and efficiently transports drill cuttings to the surface under high shear stress conditions.

3. Mining Industry & Tailings Management

Mineral recovery operations produce vast quantities of slurry tailings. Oubo APAM formulations enable rapid solid-liquid separation across coal washing, gold, silver, iron ore, copper, alumina (Bayer Process), and nickel mining.

Our polymers facilitate vacuum filtration, centrifugation, and thickener performance, accelerating water recovery for closed-loop mill reuse while ensuring safe, dry tailings stacking in compliance with global tailings management standards (GSTM).

4. Pulp & Paper Manufacturing

APAM acts as a multi-functional additive in paper wet-end systems:

  • Retention & Drainage Aid: Significantly retains short fibers, titanium dioxide, and calcium carbonate fillers.
  • Dry Strength Agent: Enhances fiber-to-fiber hydrogen bonding, increasing tensile strength, burst resistance, and ring crush index.
  • Anionic Trash Neutralizer & Dispersant: Balances wet-end chemistry and promotes uniform sheet formation.
5. Sugar Refining & Food Wastewater

In sugar mills (cane and beet sugar), specialized ultra-pure APAM grades clarify raw juice and syrup by aggregating non-sugar impurities, proteins, and suspended solids into easily filterable flocs. It complies with food-grade purity standards, optimizing sugar yield and color quality.

6. Textile Sizing & Dyeing Wastewater Treatment

Used as a high-performance sizing agent, APAM forms a smooth, flexible protective film on yarn threads, minimizing breakage during weaving. In textile effluent treatment, APAM decolorizes complex organic dye wastewater when combined with inorganic coagulants.

Field Engineering & Dissolution Guidelines

Maximizing Polymer Efficiency through Standardized Operational Protocols

Dissolution Concentration

APAM dry powder should be dissolved in fresh water to a standard working concentration of 0.1% to 0.3% (w/v). Concentrated stock solutions prevent shear degradation and ensure smooth dosing delivery.

Agitation & Aging Time

Dry powder must be uniformly sprinkled into vortexing water. Recommended agitation speed is 200 - 400 RPM. Allow an aging time of 45 to 60 minutes for complete polymer chain relaxation.

Avoid High Shear Stress

Polymer chains are sensitive to mechanical degradation. Use low-shear pumps (e.g., progressive cavity pumps or diaphragm pumps) and avoid high-speed centrifugal impellers during transport.

Storage & Handling Best Practices: Store APAM powder in cool, dry, ventilated conditions. Sealed bags maintain full stability for 24 months. Prepared aqueous solutions should be utilized within 48 hours to prevent molecular chain degradation from bio-fouling or oxidation.

Packaging Specifications & Global Logistics

Flexible Export Packaging Engineered for International Transport

Blank Bag Polyacrylamide Packaging

Neutral / Blank Packaging

Custom OEM/ODM Neutral Kraft or PE Bags (25kg)

Normal Bag Polyacrylamide Packaging

Standard Branded Bag

O'brien Standard 25kg Valve Paper Bags

Ton Bag Polyacrylamide Package

Bulk Jumbo Ton Bag

750kg - 1000kg Big Bags for High Volume Mining/Oilfield

Palletized Polyacrylamide Container Loading

Palletized & Shrink Wrapped

ISPM-15 Fumigated Wooden/Plastic Pallets (1.0-1.2 Ton/Pallet)

Frequently Asked Technical Questions (FAQ)

Expert Answers on Anionic Polyacrylamide Selection, Testing, and Application

? How do I determine the optimal Anionic Polyacrylamide charge degree for my wastewater?
Optimal charge degree selection depends on slurry pH and particle surface charge characteristics. Highly alkaline slurries containing inorganic clays (e.g., quarry or coal washing water) typically respond best to medium-to-high anionic hydrolysis degrees (20%-40%). Neutral slurries containing mixed mineral oxides work effectively with low-to-medium charge levels (10%-20%). Jar testing with a gradient series of Oubo APAM samples is essential to identify the precise dosage and charge window.
? What is the difference between biological and chemical methods of acrylamide synthesis?
Traditional chemical synthesis uses copper catalyst routes, which can leave trace copper ions and higher residual monomer content in the end polymer. Oubo uses a patented biological enzyme catalysis method. Microbially synthesized nitrile hydratase converts acrylonitrile into acrylamide with 99.9% yield at ambient pressure and temperature. This produces higher purity, hyper-high molecular weight polymers with zero copper contamination and residual monomers guaranteed under 0.05% (500 ppm).
? Why does dissolved polyacrylamide lose viscosity over time?
Viscosity decay in aqueous APAM solutions occurs primarily due to polymer chain cleavage induced by three factors: 1) Mechanical shear stress from high-speed pumps; 2) Oxidative degradation caused by dissolved iron ions (Fe²⁺/Fe³⁺) or free radicals; and 3) Biological contamination from bacterial growth breaking down the organic acrylamide backbone. Dissolving solutions in clean water and utilizing them within 24-48 hours prevents degradation.
? Can Anionic Polyacrylamide be used in acidic industrial effluents?
Under strongly acidic conditions (pH < 4), carboxyl groups (-COO⁻) on the APAM chain become protonated into non-ionic carboxyl groups (-COOH), causing the polymer to lose its anionic charge and shrink in solution, which reduces bridging capability. For highly acidic industrial wastewater or acid-leaching mining operations, Nonionic Polyacrylamide (NPAM) or low-anionic specific polymers are recommended over standard APAM.
? What compliance certifications do Oubo Polyacrylamide products hold?
Oubo Chemical operates under ISO9001:2008 Quality Management System certification. Our polyacrylamide products strictly adhere to international environmental and industrial standards, including EU REACH compliance for safe chemical export, and undergo batch-by-batch laboratory testing verified by Certificate of Analysis (COA) prior to dispatch.

Explore Complete Polyacrylamide Portfolio

Discover Full Range Formulations: Anionic, Cationic, and Nonionic Solutions

Wholesale Cationic Polyacrylamide Flocculant for Textile

Cationic Polyacrylamide (CAS 9003-05-8) Flocculant for Textile Dyeing

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Wholesale PAM Anionic Polyacrylamide Manufacturer

Wholesale PAM Anionic Polyacrylamide Manufacturer & Global Supplier

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China Nonionic Polyacrylamide Manufacturers

China Nonionic Polyacrylamide (NPAM) High Viscosity Manufacturers

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China Nonionic Polyacrylamide Acidic Wastewater

China Nonionic Polyacrylamide Flocculant for Acidic Wastewater

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Wholesale Anionic Polyacrylamide Supplier

Wholesale Anionic Polyacrylamide Polymer Powder Suppliers

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Nonionic Polyacrylamide PAM Thickener Oilfield

Nonionic Polyacrylamide (PAM) Thickener for Oilfield Drilling Fluid

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Cationic Polyacrylamide Retention & Drainage Aid Paper

Cationic Polyacrylamide Retention & Drainage Aid for Paper Industry

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Wholesale Cationic Polyacrylamide CPAM Sludge Dewatering

Wholesale Cationic Polyacrylamide (CPAM) for Sludge Dewatering

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