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Help CenterFlotation + CIL Gold Processing Plant | Combined Flotation & Carbon-in-Leach Gold Recovery
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 flotation+CIL combined gold processing plant is a compound metallurgical equipment integrating flotation enrichment and CIL leaching adsorption, specially developed for complex gold ores such as sulfide gold ore, associated polymetallic gold ore, fine-grained disseminated gold ore and low-grade mixed gold ore that are difficult to treat by single CIL technology.The complete production line is divided into two major working sections: flotation pretreatment section and CIL deep extraction section. The overall equipment includes crushing & grinding equipment, flotation machine group, flotation concentrate thickener, concentrate regrinding system, standard CIL leaching tank array, carbon screening equipment, high-efficiency desorption-electrolysis unit, carbon regeneration device, tailings detoxification and environmental protection treatment system and intelligent centralized control system.Customizable daily processing capacity ranges from 200TPD to 10000TPD. It is widely used in gold mines with complex ore properties in South America, Africa, Central Asia and other regions. Flotation first concentrates scattered gold minerals, then CIL extracts gold efficiently from high-grade concentrates, which greatly improves the overall gold recovery rate compared with single CIL process.
2. Working Principle
The whole process is divided into flotation enrichment and CIL leaching recovery two stages, the two processes coordinate step by step:
Crushing and grinding: Raw ore is crushed and finely ground to reach monomer dissociation particle size of gold-bearing minerals, preparing for flotation separation.
Flotation separation: Add flotation reagents into pulp, valuable gold sulfide minerals adhere to bubbles and float upward to form high-grade gold concentrate; gangue minerals sink into tailings and are discharged preliminarily.
Concentrate regrinding & thickening: Flotation concentrate is concentrated and fine regrinded to further dissociate wrapped gold, creating optimal particle size conditions for cyanide leaching.
CIL synchronous leaching & adsorption: The concentrated fine pulp enters the leaching tank, cyanide dissolves elemental gold into gold cyanide complex ions, and activated carbon adsorbs gold ions synchronously inside the tank.
Gold separation and smelting: Gold-saturated loaded carbon is screened and sent to desorption-electrolysis equipment for gold stripping and electrolytic precipitation into gold mud, and gold mud is smelted into standard gold ingots.
Circulation and harmless discharge: Spent carbon is regenerated for repeated use; final tailings and wastewater are detoxified and purified to meet emission standards before discharge.
3. Core Features
Strong adaptability to complex ores: Effectively treat sulfide ore, fine disseminated gold ore, low-grade mixed ore and encapsulated gold ore that single CIL cannot handle well.
Remarkably improved overall recovery: Flotation pre-enrichment removes massive gangue, reduces leaching volume, and the combined process raises gold recovery by 3%~8% compared with simple CIL.
Lower comprehensive consumption: Flotation discards most barren gangue in advance, greatly reduces cyanide dosage, power consumption and tank volume investment of subsequent CIL system.
Stable production performance: Two-stage process mutual buffering, ore fluctuation has little impact on final gold output, low equipment failure rate.
Flexible process collocation: The flotation section can be independently turned on or off; switch freely between combined process and single CIL according to daily ore grade changes.
Good environmental controllability: Centralized treatment of concentrate reduces the total amount of cyanide-containing tailings, easier tailings detoxification and sewage governance.
High economic benefit for low-grade mines: It makes low-grade gold ore economically mineable, effectively tapping potential gold resources.
Mature industrial application: Widely verified in Ecuador, Ghana and other major gold-producing countries, easy on-site installation and standardized after-sales technical guidance.
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