Jiaozuo Zhongxin Heavy Industrial Machinery Co.,Ltd.
Review turnkey mineral processing and gold recovery plant installations engineered by Zhongxin Heavy. Detailed case studies cover gold CIP/CIL cyanidation lines, copper ore flotation circuits, iron ore magnetic separation, and gravity concentration systems—complete with process flowsheets, equipment configurations, and verified mineral recovery rates.
Zhongxin Heavy Industry designs turnkey sulfide copper ore beneficiation plants featuring high-efficiency crushing, ball mill grinding, froth flotation circuits, and concentrate dewatering. We deliver customized EPC solutions and optimized flotation reagent schemes for chalcopyrite, chalcocite, and bornite extraction globally.
Copper sulfide flotation takes advantage of the physicochemical surface property differences among mineral particles—specifically their natural surface hydrophobicity and wettability—to separate valuable copper minerals from barren gangue.
Sulfide copper minerals possess inherent hydrophobicity. By introducing targeted flotation reagents—including collectors, frothers, and pH modifiers—the hydrophobic nature of mineral surfaces is significantly enhanced. Copper mineral particles selectively attach to rising micro-bubbles in the flotation cells, forming a mineralized froth layer that ascends smoothly to the pulp surface for concentrate laundering and recovery.
Mineralogical Characteristics of Typical Sulfide Copper Ores
| Typical Sulfide Copper Mineral | Chemical Formula | Mineralogical & Crystal System Characteristics |
| Chalcopyrite | CuFeS2 | The most common primary copper sulfide mineral, featuring a brass-yellow color with a bright metallic luster. It crystallizes in the tetragonal crystal system, commonly forming tetrahedral or pseudotetrahedral crystal aggregates. |
| Chalcocite | Cu2S | Exhibits a lead-gray color with a metallic luster. It crystallizes in the orthorhombic crystal system, typically presenting short columnar or thick tabular morphology. Chalcocite serves as the predominant mineral in secondary supergene copper enrichment zones. |
| Bornite | Cu5FeS4 | Known as "peacock ore," it features a dark copper-red color with an iridescent purplish-blue tarnish and metallic luster. Belonging to the isometric crystal system, it forms cubic or octahedral crystals and typically coexists with chalcopyrite and chalcocite. |
Sulfide Copper Flotation Reagents & Operational Functions
| Reagent Category | Key Chemical Reagents Used | Operational Characteristics & Functions |
| Collectors | Xanthates (Potassium Ethyl Xanthate - PEX, Sodium Butyl Xanthate - SBX), Dithiophosphates (Butylammonium Dithiophosphate / Dithiophosphate 25). | Chemically adsorb onto copper mineral surfaces to enhance surface hydrophobicity, enabling strong attachment between copper particles and air bubbles. |
| Frothers | Pine Oil (Terpineol), Methyl Isobutyl Carbinol (MIBC). | Lower slurry surface tension to produce dense, uniform, and stable micro-bubbles, facilitating smooth upward transport of copper froth to the surface. |
| Modifiers / Conditioners | Lime Ca(OH)2), Sodium Carbonate (Na2CO3). | Regulate pulp pH, disperse ultrafine gangue slime, modify mineral surface charges, and optimize the selective flotation environment for maximum copper recovery. |
To achieve high copper recovery rates and premium concentrate grades (>25%Cu), a balanced, fully integrated crushing, grinding, flotation, and dewatering circuit is mandatory. Zhongxin Heavy supplies complete machinery lineups:
1.High-Efficiency Crushing & Grinding Circuit
Primary & Secondary Crushers (Jaw & Cone Crushers): Heavy-duty ZXC European Jaw Crushers and XHP/DP Hydraulic Cone Crushers reduce Run-of-Mine (ROM) ore to optimal grinding feed size (-12mm).
Grinding Ball Mills & Hydrocyclones: Industrial Ball Mills operating in closed circuit with Hydrocyclone batteries ensure precise particle liberation, achieving standard flotation feed fineness (typically 65% to 80% passing -200 mesh / 74 mum).
2.Froth Flotation & Mineral Separation Circuit
Mechanical & Pneumatic Flotation Cells: High-efficiency flotation machines equipped with dynamic impellers for homogeneous slurry agitation and optimal air dispersion.
Modular Flotation Flowsheet: Custom configurations comprising Rougher Flotation, Cleaner Flotation (2–3 stages), and Scavenger Flotation banks to guarantee maximum copper recovery without losing valuable fines to tailings.
3. Concentrate Thickening & Dewatering Circuit
High-Rate Thickeners & Chamber Filter Presses: High-efficiency slurry thickeners paired with automatic vacuum or chamber filter presses reduce concentrate moisture to <10%, delivering market-ready copper concentrate for transport and smelting.
We specialize in providing complete EPC (Engineering, Procurement, Construction) solutions for small, medium, and large-scale copper mining operations across Latin America (Chile, Peru, Mexico, Bolivia, Argentina) and worldwide:
1.Laboratory Ore Testing: Mineralogical assaying and bench-scale flotation testwork to optimize chemical reagent dosage and metallurgical recovery.
2.Flowsheet & Plant Layout Design: Customized 3D plant CAD design and process flowsheets optimized for energy efficiency and compact footprint.
3.Equipment Manufacturing & Direct Supply: Heavy-duty machinery manufactured in-house with guaranteed long-life wear spare parts.
4.On-Site Installation & Commissioning: Senior metallurgical engineers deployed on-site for erection supervision, plant commissioning, and operational staff training.
Crushing and mineral processing setups that actually handle hard rock, fines, and wet material. See our stationary, mobile, and modular lines for mining and aggregates.
This section is designed to address the most pressing inquiries customers may have regarding the daily operation, maintenance, product advantages, and after-sales service of our cone crushers. Our aim is to help you gain a comprehensive understanding of our overall capabilities and enable you to make informed decisions for your projects.
Choosing Zhongxin genuine wear parts reduces downtime and significantly boosts your mining operation's ROI.
We help clients develop maintenance plans to solve issues before wear affects production.
We offer customized parts for materials like granite or gold ore, increasing wear resistance by 30%.
Leveraging our optimized supply chain, we promise the fastest delivery of parts to global sites.
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