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.
Complete turnkey processing solutions for oxidized gold ores. We combine advanced multi-stage crushing, heap leaching, gravity separation, and CIL/CIP cyanidation technology to achieve up to 95% gold recovery rate while minimizing OPEX for your mining operation.
Oxidized gold ore processing presents one of the most profitable routes in gold mining due to the high ore porosity and the presence of free-milling or easily leachable gold. At Jiaozuo Zhongxin Heavy Industry, we engineer and integrate custom gold beneficiation plants tailored to the specific mineralogical characteristics of your deposit.
We offer proven gold ore recovery methods for oxidized ores:
Heap Leaching (HL): Ideal for low-grade gold deposits to significantly reduce capital expenditure (CAPEX).
Gravity Separation: Designed to recover coarse free gold using centrifugal concentrators and shaking tables.
Tank Cyanidation (CIL / CIP Plant): Highly efficient for high-grade gold ores and fine-grained gold particles.
Our comprehensive gold processing lines integrate multi-stage crushing circuits, agglomeration drums, screening, and leaching systems. By optimizing reagent consumption and lowering operational costs (OPEX), Zhongxin Heavy delivers gold recovery rates of up to 95%.
Understanding Oxidized Gold Deposits
Oxidized gold deposits do not consist of a single mineral type. Instead, they are secondary gold deposits formed in near-surface environments through long-term weathering, leaching, and geological transformation of primary gold ores (mainly gold-bearing sulfide deposits). In oxidized gold ores, the gold has typically been liberated from sulfides, but it may be coated with gangue or limonite, or finely disseminated throughout the matrix.
| Key Specification | Technical Details |
| Plant Capacity | 100 – 10,000 TPD (Tons Per Day) / Modular & Scalable Design |
| Applicable Ore Types | Gold Oxides, Saprolites, Auriferous Clays & Oxidized Quartzites |
| Main Processing Methods | Heap Leaching (HL) / Gravity Separation / CIL Tank Cyanidation |
| Gold Recovery Rate | 70% – 95% (Varies by ore grade and chosen process flow) |
| Key Equipment Package | Jaw Crusher, Cone Crusher, Agglomeration Drum, Trommel Washer, CIL Cyanidation Tanks |
| Ore Type | Mineral Characteristics | Recommended Beneficiation Method |
| Typical Fine-Grained Oxidized Gold Ore | Fine, uniformly distributed gold grains attached to fractures/surfaces of iron & manganese oxides (limonite, hematite) or encapsulated in loose quartz and clay. | Agitated Cyanidation / CIL Leaching |
| Simple Free-Milling Oxide Gold Ore | Oxide ore containing coarse-grained free gold. | Gravity Separation + Cyanidation |
| Incompletely Oxidized Sulfide Gold Ore | Contains both oxidized minerals (limonite) and residual primary sulfides (pyrite, arsenopyrite). Fine gold is coated in hydrophobically floatable sulfides. | Flotation Concentration (Flotation of gold-bearing sulfides) |
| Carbonaceous Oxide Gold Ore | Contains natural carbonaceous material (graphite, organic carbon) that causes "preg-robbing" during cyanidation by adsorbing gold-cyanide complexes. | Flotation + Separate Treatment (e.g., Roasting or CIL with preg-robbing inhibitors) |
| Low-Grade, Porous & Permeable Oxide Ore | Large-scale, low-grade oxidized gold ore (<1 g/t) with high permeability. | Heap Leaching (HL) |
| Base Metal Oxide Encapsulated Gold Ore | Gold occurs as fine grains or inclusions coated by base metal oxides (copper, lead, zinc like malachite, cerussite, smithsonite). | Flotation Concentration (Using specific collectors/activators like sodium sulfide) |
| Silica / Aluminosilicate Encapsulated Gold Ore | Extremely fine gold particles encapsulated within gangue matrices like quartz, silica, or aluminosilicates. | Refractory Ore Treatment (Roasting or Intensive Chemical Leaching) |
1.PE/PEX Series Jaw Crusher
Primary Crushing & Heavy-Duty Performance: Delivers high-capacity primary reduction for tough run-of-mine (ROM) gold ores. Built with high-manganese steel jaw plates for maximum wear resistance and extended service life.
2.Hydraulic Cone Crusher
Secondary/Tertiary Crushing & Ideal Particle Shaping: Provides precise secondary and tertiary crushing to produce a homogeneous cubic product, ensuring optimal permeability and packing density for heap leaching beds.
3.Agglomeration Drum (Drum Agglomerator)
Uniform Mixing & Porous Pelletization: Thoroughly blends fine gold ore, lime, and water/reagents to form stable, high-strength agglomerates that guarantee rapid, efficient percolation of the leaching solution.
4.Trommel Scrubber (Rotary Ore Washer)
Clay Disintegration & Free Gold Washing: Heavy-duty rotary scrubbing to break down sticky clay lumps, muddy matrix, and conglomerates, effectively liberating trapped gold particles prior to downstream screening and separation.
5.Centrifugal Gold Concentrator
High-G Chemical-Free Gravity Recovery: Utilizes high centrifugal G-force to capture coarse and fine free-milling gold efficiently without the use of toxic chemicals or reagents.
6.CIL Agitated Leaching Tanks (Carbon-in-Leach)
High-Efficiency Agitation & Accelerated Cyanidation: Engineered with dual-impeller agitation systems and low-pressure air sparging to ensure uniform slurry suspension, maximizing gold dissolution rates and carbon adsorption efficiency.
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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