Peru stands as a global powerhouse in the mining and extractive sector, ranking among the world's top producers of copper, zinc, gold, silver, and molybdenum. From the high-altitude Andean plateaus of Arequipa, Moquegua, and Cajamarca to the hyper-arid coastal belts of Ica and Tacna, industrial operations in Peru face dual operational imperatives: extreme mineral yield optimization and rigorous environmental compliance governed by the Organismo de Evaluación y Fiscalización Ambiental (OEFA) and the Autoridad Nacional del Agua (ANA).
At elevations exceeding 3,500 meters above sea level (e.g., Cerro Verde, Antamina, Las Bambas), atmospheric pressure drops and water viscosity changes. Nonionic PAM formulations manufactured by Oubo Chemical provide ultra-high molecular weight (ranging from 6 million to 12 million Daltons) that rapidly forms large, dense flocs in copper and polymetallic counter-current decantation (CCD) thickeners, maintaining rapid settling rates despite cold, high-altitude water conditions.
Peruvian copper hydrometallurgy relies heavily on heap leaching with concentrated sulfuric acid. The resulting pregnant leach solution (PLS) and raffinate streams demand clarification chemicals that remain active at pH 1.0 to 2.5. Oubo's nonionic polyacrylamide flocculants utilize advanced acrylamide homopolymer chains with ultra-low residual monomer content (<0.05%), resisting acidic hydrolysis and preventing equipment fouling in solvent extraction (SX-EW) circuits.
Nonionic Polyacrylamide is a linear water-soluble polymer synthesized via the controlled polymerization of acrylamide monomers. Because its macromolecular chain contains a high concentration of polar amide groups ($-CONH_2$), it adsorbs onto suspended solid particles via hydrogen bonding and van der Waals forces. By spanning across multiple solid particles simultaneously, it creates strong inter-particle bridges, resulting in large, dense micro-flocs that settle exponentially faster than unassisted slurry particles.
| Grade / Parameter | Molecular Weight (Million Da) | Solid Content (%) | Degree of Hydrolysis (%) | Dissolution Time (Mins) | Primary Peruvian Application |
|---|---|---|---|---|---|
| NPAM Standard Grade | 6 - 8 | ≥ 89% | 0 - 2% | ≤ 60 | Municipal Industrial Wastewater & Sugar Processing |
| NPAM Acidic Flocculant | 8 - 11 | ≥ 90% | 0 - 1% | ≤ 50 | Acid Mine Drainage (AMD) & Copper Leach Effluent |
| NPAM Ultra-High MW | 10 - 14 | ≥ 89% | 0 - 3% | ≤ 60 | High-Altitude Tailings Dewatering & Coal Washing |
| NPAM Oilfield Grade | 12 - 15 | ≥ 90% | 0 - 2% | ≤ 45 | Talara Basin Drilling Fluids & Viscosifiers |
Oubo Chemical Co., Ltd was established in 2011, located in the Free Trade Zone of Qingdao, China. The QC system of O'Brien is strict and comprehensive. In the past 10 years, our business growth rate has maintained 10% per year. Qingdao Oubo Chemical Co., Ltd is highly committed to quality, service, and pays significant attention to environmental protection during polymer production and application.
Oubo specializes in supplying Cationic Polyacrylamide, Anionic Polyacrylamide, and Nonionic Polyacrylamide. We feature advanced production equipment and a highly professional technical workforce, ensuring all products and services are executed to the highest international standards. Our annual capacity for polyacrylamide surpassed 50,000 Tons in 2018, and our quality management system is fully certified by ISO9001:2008. We proudly stand behind every ton of product we export to South America and worldwide.
Leading manufacturer using advanced bio-catalytic methods to produce polyacrylamide monomers with proprietary patents. We reinvest over €2 hundred million into continuous technological accumulation and process automation.
Global raw material supply chain (sourcing high-purity monomers from leaders like SINOPEC and Eni). Automated production lines test every single batch 3 times prior to shipment via our stringent internal QC team.
Specialized in polyacrylamide synthesis for over a decade with superior quality consistency and factory-direct pricing. Technical support spans pre-sales laboratory jar testing through to full-scale plant integration.
Our dedicated chemical engineering group collaborates directly with Peruvian plant operators to optimize polymer make-down systems, dosage rates, and shear-mitigation pump setups.
As a high-performance flocculating agent, NPAM is widely applied in solid-liquid separation processes, including sedimentation, clarification, sludge thickening, and centrifuge dewatering. Increasingly stringent regulations set by MINAM and ANA drive the adoption of our zero-charge polymers in municipal sewage, leather, citric acid, and pharmaceutical effluents.
Functions as a retention aid, filter aid, and dry strength agent. Improves paper quality, enhances physical sheet strength, and minimizes fine fiber loss in white water loops. Also serves as an anionic trash catcher and fiber dispersant agent, promoting superior sheet formation and smoothness.
Extensively deployed in drilling operations across Northern Peru (Talara Basin) and offshore platforms. Serves as a fluid loss reducer, shale inhibitor, viscosifier, and friction reducer in hydraulic fracturing and Enhanced Oil Recovery (EOR) operations.
Essential for tailings thickener operation, counter-current decantation (CCD), and solid-liquid separation via belt presses or membrane filter presses. Highly effective for copper, gold, silver, zinc, and coal washing tailings recovery under harsh water conditions.
Utilized in sugarcane juice clarification and flotation processes across Peru's coastal agricultural valleys (e.g., La Libertad, Lambayeque), accelerating mud settling rates and increasing clear juice clarity for refined sugar production.
Acts as a textile sizing agent, fabric finishing enhancer, and primary flocculant for textile wastewater color reduction and COD reduction prior to discharge into municipal sewers.
25kg Kraft paper / PE inner bag, unbranded for OEM distribution.
25kg heavy-duty woven bag with standard Oubo chemical specifications.
FIBC ton bags engineered for continuous automatic dosing systems in mines.
Fumigated wooden/plastic pallets with stretch film protection against humidity.
NPAM solid powder should be dissolved in a clean water solution at a concentration of 0.1% to 0.3% (w/v). Ensure water temperature is maintained between 15°C and 40°C. In high-altitude Andean mines where water temperature can drop below 10°C, low-stage heat exchangers or extended dissolution aging tanks (60–90 minutes) are recommended to achieve complete chain uncoiling.
Polymer chains are susceptible to mechanical degradation under high-shear mixing. Dissolution agitators should operate at a tip speed below 1.5 m/s (200-400 RPM). Use low-shear positive displacement pumps (such as progressive cavity pumps) rather than high-speed centrifugal pumps when dosing the prepared solution into thickener feed wells.
In highly acidic mining environments (pH < 3.0), carboxylic groups on Anionic Polyacrylamide chains become protonated ($COO^- \rightarrow COOH$), causing the polymer chain to collapse and lose its flocculating efficacy. Nonionic PAM relies exclusively on neutral amide functional groups and hydrogen bonding, allowing it to maintain an open molecular conformation and high flocculation efficiency regardless of acidic pH level.
Direct containerized sea freight from Qingdao, China to Port of Callao or Port of Matarani in Peru typically takes 28 to 35 days. Oubo Chemical manages customs documentation, certificate of analysis (COA), SDS in Spanish, and phytosanitary packaging compliance for smooth Peruvian port clearance.
Yes. We offer complimentary sample dispatch to Peru for initial benchtop jar testing. Customers can send tailings slurry or wastewater samples to our lab, or our technical sales representatives can provide precise polymer selection matrices matching your specific slurry TSS, pH, and water salinity profile.
When stored in its original unopened moisture-proof packaging in a cool, dry warehouse below 35°C, Oubo NPAM dry powder maintains a shelf life of 24 months. Once dissolved in water, the aqueous stock solution should ideally be consumed within 24 to 48 hours for maximum activity.
Oubo Chemical
