Over years, ENFI has carried out extensive research work and practice in the field of scientific and technological breakthrough of nonferrous metal mining, mineral processing and smelting. ENFI is the first to apply several new technologies and equipment in the projects, and has obtained several important scientific and technological achievements with independent intellectual property and created several core expertise and proprietary technologies.
At present, ENFI owns nineteen core expertise technologies which cover the specialties of mining, mineral processing, heavy nonferrous metallurgy, rare metal metallurgy, new material, ESP, wastewater treatment, gas cleaning, electrics and equipment and listed below:
1. Oxygen bottom-blowing smelting process2. Copper-nickel flash smelting process3.Oxygen-enriched air top-blowing smelting process4. Extraction technology by pressure leaching5.Fluid bed roasting of sulfide ore6. Polysilicon production process7. Mechanical and electrical integration technology for metallurgical furnace8. Waste heat recovery from smelting off-gas9. Tailings dam building10. Medical and dangerous waste disposal11. Key equipment and technology for sulfur removal in air control12. Integrated technology of deep mining13. Block caving14. Paste filling15. Urban sewage treatment16. SAG/ ball milling process17. Optimized control for mineral processing18. Special communication system for mining19. Electrical control system for shaft hoist
