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Help CenterAlluvial Gold CIL Processing Plant | Placer Gold Carbon-in-Leach Recovery System
Product Spotlights
2. Universal CIL line for all gold ores.
3. Flexible capacity: 20–5000 TPD.
4. Low power & reagent cost, high efficiency.
5. Anti-corrosion structure for longer service life.
6. Carbon recycling cuts operational consumption.
7. Intelligent control, easy & labor-saving operation.
8. Combined process enables stable 24h running.
9. Globally proven & mine-adaptable CIL technology.
10. Full one-stop turnkey mining solution.
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1. Product Description
The Alluvial Gold CIL Processing Plant is special carbon-in-leach equipment developed for river alluvial gold, placer gold and eluvial gold. Different from hard-rock gold processing lines, it targets loose granular placer ore without complex crushing links, focusing on gravity pre-concentration combined with CIL deep gold extraction.The complete assembly includes screening & desliming equipment, jig concentrator, centrifugal gravity separator, heavy mineral enrichment unit, fine-grained gold pulp preparation system, CIL leaching tank group, carbon screening machine, desorption-electrolysis integrated equipment, carbon regeneration device, wastewater circulation system and tailings purification system.Customized daily capacity ranges from 100TPD to 5000TPD. It is widely applied in Amazon basins, river valleys of Ecuador and other Latin American regions rich in placer gold. Gravity separation firstly reclaims coarse visible gold, and CIL recovers micro fine granular gold that gravity separation cannot capture, realizing full-spectrum recovery of both coarse and fine placer gold.
2. Working Principle
The whole technological flow is divided into gravity roughing enrichment and CIL fine gold leaching recovery two major parts:
Desliming & grading: Raw placer ore is screened and washed to remove slime, clay and large waste stones, separating ores of different particle sizes.
Gravity concentration: Jig and centrifugal separator separate coarse gold and heavy gold-bearing minerals from light gangue by density difference; most coarse gold is directly collected.
Fine pulp preparation: Residual micro-fine gold mixed with fine sand is made into uniform leaching pulp after concentration.
CIL synchronous leaching & adsorption: Cyanide dissolves fine granular gold into gold cyanide complex ions, activated carbon continuously adsorbs gold ions inside leaching tanks.
Gold extraction & smelting: Gold-laden carbon is delivered to desorption-electrolysis equipment for gold desorption and electrolysis to produce gold mud, then gold mud is smelted into gold ingots.
Circulation & discharge: Regenerated carbon is reused in leaching section; clean tailings and wastewater are recycled or discharged after harmless treatment.
3. Core Features
Professional adaptation to placer gold: No crushing process, simplified front-end workflow, perfectly fit loose alluvial ore characteristics.
Full particle size gold recovery: Gravity separation captures coarse gold, CIL collects micro fine gold, overall recovery far exceeds single gravity placer equipment.
Low energy consumption: Cancel high-power crushing equipment, lower power consumption compared with rock gold CIL lines of equal tonnage.
Compact layout: Small floor area, easy to build on river banks and mountain floodplains where space is limited.
Flexible mobile matching: Modules can be split and assembled, supporting semi-mobile layout suitable for scattered small placer mining areas.
Stable recovery rate: For conventional alluvial gold, comprehensive gold recovery rate reaches 90%~96%.
Simple environmental treatment: Low cyanide dosage, less poisonous residues, convenient tailings purification and water circulation.
Mature Latin American application: Well-matched with Ecuador local placer mining conditions, convenient installation and technical after-sales support.
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