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.
Maximizing Gold Extraction from High-Hardness Siliceous Quartz Veins
Complete turnkey engineering, equipment supply, and commissioning for quartz-hosted hard rock gold deposits. By integrating heavy-duty multi-stage crushing, fine closed-circuit grinding, and whole-slime Carbon-in-Leach (CIL/CIP) cyanidation, Zhongxin Heavy achieves gold recovery rates of up to 98% with optimized reagent consumption for mining operations worldwide.
Project Overview & Technical Solution
This successful project case documents the engineering, equipment manufacturing, and plant commissioning for a high-hardness quartz vein gold deposit. To maximize the liberation and extraction of micro-fine gold particles encapsulated within the dense silica quartz matrix, Jiaozuo Zhongxin Heavy Industry designed and implemented a robust processing line featuring multi-stage crushing, closed-circuit fine grinding, and a whole-slime CIL (Carbon-in-Leach) / CIP (Carbon-in-Pulp) circuit.
Our tailored solution optimizes chemical reagent consumption while achieving a metallurgical gold recovery rate exceeding 94.5% (up to 98%), serving as a benchmark for underground hard-rock and quartz vein gold mining projects across Latin America and global markets.
Whole-Slime Cyanidation & Activated Carbon Adsorption Principles
Under an alkaline environment with a pH of 10 to 11, dissolved oxygen acts as an oxidant and cyanide serves as a complexing ligand. Cyanide ions undergo a complexation reaction with elemental gold inside the ore slurry, dissolving the solid gold to form stable, water-soluble aurocyanide complex ions $[Au(CN)_2]^-$.
Subsequently, activated carbon acts as an "attractor magnet" within the slurry to adsorb and concentrate the dissolved gold-cyanide complex ions. The loaded carbon then undergoes high-pressure desorption and electrowinning (elution circuit) to produce high-purity Gold Doré bars.
Technical Specifications of Quartz Vein Gold Processing Plant
| Key Specification | Technical Details |
| Plant Capacity | 50 – 2,000 TPD (Tons Per Day) / Modular & Scalable Design |
| Grinding Fineness | 80% – 90% passing -200 mesh (74 microns) |
| Gold Recovery Rate | 90% – 98% (Varies by ore grade & mineralogical characterization) |
| Core Process Flowsheet | Closed-Circuit Ball Milling + Whole-Slime CIL Cyanidation + Desorption & Electrowinning (ELU) |
| Final Product | High-Purity Gold Doré Bars (85% – 95% purity ready for smelting) |
Core Equipment Package for Quartz Vein Gold Line
1.Heavy-Duty Jaw Crusher & Hydraulic Cone Crusher
Multi-Stage Reduction for High-Hardness Quartz: Delivers powerful crushing forces to break tough, abrasive siliceous quartz rock down to optimal ball mill feed size.
2.Closed-Circuit Ball Mill & Hydrocyclone Cluster
Precision Fine Grinding & Classification: Grinds quartz rock to 80%–90% passing -200 mesh, ensuring complete monomer liberation of sub-microscopic encapsulated gold.
3.CIL / CIP Agitated Leaching Tanks
Dual-Impeller Agitation & Air Sparging: Keeps heavy slurry suspended uniformly while maintaining continuous carbon contact for maximum leaching kinetics and adsorption rates.
4.High-Pressure Desorption & Electrowinning System (Elution Unit)
Fast Stripping & High-Purity Gold Recovery: Desorbs gold from loaded activated carbon under high temperature and pressure, electroplating pure gold onto cathodes for easy smelting into Doré bars.
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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