Cyanide-free Gold Extraction by Biology Oxidization --- Thiourea Leaching and Resin-in-Pulp

Research on the Gold Extraction Process of Whole-Ore Roasting in Fluid Bed

The Research and Application of the Cyanide-containing Waste Water Treatment by Cotl Oxidization

The Research and Application of Barren Solution Purification by Two Step Precipitations

The Research and Application of Barren Solution Purification by Three Step Precipitations

Research on the Process of Comprehensive Recovery of Gold from Old Tailings Resources

Integrated Research on the Mining of Complicated Deposit in Xincheng Gold Mine

Research and Application of Resuing Stoping by Oriented Casting Blast with False Bottom of Steel Structure for Extremely Narrow Veins in Hebei Yuerya Gold Mine

Research on Ventilation System Optimization and Cooling Technology for Deep Shaft

Research on the Gold Extraction Process of Alkaline Hot Pressure Oxidization and Cyanidation

Test and Research on Hydraulic Tailings Backfilling in Liaoning Wulong Gold Mine

Research and Test on Overall Mining Method with Combined Wall Support of Rockbolting and Line Pillars

Technical Renovation of the Metallurgical Technology in Guangxi Longtoushan Gold Mine

The Research and Application of Two Step Precipitation for Barren Solution Purification

The Test and Research on the Treatment of Cyanide-containing Wastewater by Oxidation of Hydrogen Peroxide

Gold Refining by Chlorine Ammonia Purification