Engineered for Maximum Flocculation Efficiency & Solid-Liquid Separation
Qingdao Oubo Chemical Co., Ltd — Pioneer in Biological Enzymatic Synthesis of Polyacrylamide
Oubo Chemical Co., Ltd was established in 2011, strategically located in the Free Trade Zone of Qingdao, China. Operating within one of China's premier logistical and industrial hubs, our QC system is rigorous, strict, and comprehensive. Over the past decade, our business growth rate has consistently maintained over 10% per year.
Qingdao Oubo Chemical Co., Ltd is highly committed to chemical purity, operational reliability, and eco-conscious manufacturing. We actively minimize environmental impact during polymer production and downstream customer application, adhering to stringent green chemical standards.
Oubo specializes in manufacturing and supplying Cationic Polyacrylamide (CPAM), Anionic Polyacrylamide (APAM / Negative Ion Polyacrylamide), and Nonionic Polyacrylamide (NPAM). Equipped with automated synthesis lines and supported by a team of polymer PhDs and chemical engineers, we ensure all products meet exacting global benchmarks.
Our annual polyacrylamide production capacity officially breached 50,000 Metric Tons in 2018. Certified under ISO9001:2008 quality management standards, Oubo proudly stands behind every shipment with robust quality guarantees.
Understanding Molecular Weights, Charge Densities, and Solid-Liquid Bridging Dynamics
Technical Definition: Negative Ion Polyacrylamide (commonly categorized as Anionic Polyacrylamide or APAM) is a water-soluble synthetic linear high polymer produced by copolymerizing acrylamide monomers with charged acrylate groups, or through the partial hydrolysis of non-ionic polyacrylamide. Possessing negatively charged carboxylate functional groups (-COO⁻) along its molecular backbone, negative ion PAM acts as an exceptional flocculant, coagulant, and rheology modifier across municipal, industrial, and geological processing systems.
Traditional chemical catalysis of acrylamide uses copper-based catalysts, which often leave residual copper ions and unwanted organic impurities that destabilize ultra-high molecular weight chain formation. Qingdao Oubo Chemical utilizes a patented biological enzyme catalysis method. By leveraging microbiological nitrilase enzymes, we convert acrylonitrile directly into high-purity acrylamide monomer under mild temperature and pressure conditions.
This biological pathway yields monomer purities exceeding 99.9%, eliminating trace heavy metals and enabling the synthesis of Negative Ion Polyacrylamide with molecular weights ranging up to 25 Million Daltons (Da). Ultra-high molecular weight chains are crucial for high-tensile bridging in suspended sludge flocculation.
Suspended solid particles in industrial wastewater and mineral slurries typically exhibit negative surface charges (zeta potential), causing mutual electrostatic repulsion and maintaining stable colloidal suspension. Negative ion polyacrylamide operates through a two-stage physical-chemical action:
| Polymer Grade | Ionicity / Charge Type | Molecular Weight (Million Da) | Degree of Hydrolysis (%) | Solid Content (%) | Dissolving Time (Mins) |
|---|---|---|---|---|---|
| Oubo APAM High-MW | Negative Ion (Anionic) | 18.0 - 22.0 | 20 - 30% | ≥ 88% | ≤ 60 |
| Oubo APAM Ultra-High-MW | Negative Ion (Anionic) | 22.0 - 25.0 | 25 - 35% | ≥ 88% | ≤ 60 |
| Oubo APAM Low-Hydrolysis | Negative Ion (Anionic) | 12.0 - 16.0 | 5 - 12% | ≥ 88% | ≤ 45 |
| Oubo NPAM Standard | Nonionic | 8.0 - 12.0 | 0 - 3% | ≥ 88% | ≤ 90 |
Why Sourcing Negative Ion PAM from Qingdao Free Trade Zone Delivers Unmatched ROI
China hosts the world's most complete chemical supply chain. Oubo Chemical sources raw materials directly from global energy titans like SINOPEC and Eni. Our direct integration with upstream Acrylonitrile (AN) producers guarantees steady raw material access, shielding international buyers from global market volatility.
Located in the Qingdao Free Trade Zone, Oubo leverages direct maritime vessel access at Qingdao Port—one of the largest deep-water shipping terminals worldwide. This reduces inland freight costs, speeds up ocean container dispatch, and simplifies tax-free bonding for raw material imports and quick export re-shipments.
Quality management is fully certified under ISO9001. Every production run undergoes three separate QC testing phases: incoming raw material verification, real-time computerized polymerization monitoring, and finished batch sampling (testing viscosity, monomer residue, and dissolution rate before container loading).
Engineered Applications Across Critical Global Infrastructure & Processing Industries
Negative ion polyacrylamide serves as an essential primary coagulant aid and settling agent in municipal effluent plants and heavy industrial facilities (tanneries, electroplating, chemical plants). APAM rapidly clarifies high-turbidity water, neutralizes inorganic suspended solids, and accelerates sedimentation in clarifiers.
In gold, copper, iron, aluminum, and coal beneficiation, APAM acts as a high-performance thickener and filtration aid. It facilitates rapid solid-liquid separation during tailing thickening, centrifuging, and belt-filter pressing, enabling up to 95% process water recycling within closed-loop mining circuits.
Utilized extensively in Enhanced Oil Recovery (EOR), tertiary oil extraction, profile control, and mud viscosity alteration. High molecular weight negative ion PAM increases water phase viscosity, improves reservoir sweep efficiency, suppresses shale hydration in oilfield drilling fluids, and lubricates drill strings.
Functions as a retention aid, drainage promoter, and dry-strength additive in paper mills. Neutralizes anionic trash, increases fine fiber and filler retention rates, enhances tensile sheet strength, and reduces total raw material waste during high-speed paper sheet formation.
Specifically formulated food-grade APAM flocculants assist in raw sugar juice clarification and flotation. The negative ion polymer binds suspended organic non-sugars, facilitating rapid mud settling and resulting in higher sugar juice clarity and improved crystallization yields.
In textile manufacturing, APAM serves dual purposes: as a warp sizing agent to increase yarn smoothness and tensile strength during high-speed weaving, and as an effective flocculant for decolorizing and removing dye pigments from textile printing effluent.
Differentiating Features Driving Value for International Buyers
Qingdao OUBO Chemical Co., Ltd is a world-leading manufacturer of Polyacrylamide. We utilize patented biological methods for monomer synthesis and invest over €200 million in cumulative research to maintain global technological leadership.
Global supply chain standard. Materials are procured from leading international producers including SINOPEC and Eni. Fully automated lines operate under ISO9001 compliance, with every batch tested 3 times prior to shipment by QC.
Focused strictly on polyacrylamide synthesis for over a decade with competitive direct-factory pricing. Our technical engineers assist clients throughout pre-sales, labJar testing, and post-sales dosing optimization.
We promise dedicated technical consultation at every stage. Our chemical team evaluates site-specific water parameters, ionic charges, and solids density to recommend the exact polymer formulation for your facility.
Flexible, Moisture-Proof Packaging Designed for Secure Ocean Freight
Ideal for distributors requiring unbranded white-label distribution.
Standard export packaging printed with standard technical details.
Big-bag ton bags engineered for high-volume automated chemical feeders.
Fumigated pallets wrapped in protective film to prevent moisture ingress during maritime transport.
Technical Insights for Procurement Managers & Water Treatment Engineers
Explore Our Full Range of Anionic, Cationic, and Nonionic Formulations
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