Regulation mechanism of secondary encapsulation in the leaching of Guizhou's Carlin-type gold ore with sodium hypochlorite

Key Points

• To explore the regulation mechanisms involved in the secondary encapsulation of gold ore leaching.
• Investigated the effects of sodium hypochlorite and Na2CO3 on gold leaching efficiency.
• Examined the impact of CMC-Na on aggregate dispersion.
• Measured changes in gold leaching efficiency before and after treatment.
• Using sodium hypochlorite increased gold leaching efficiency from 88.31% to up to 93.95%.
• Na2CO3 and CMC-Na also contributed to improved gold leaching efficiencies of 92.47% and increased aggregate dispersion.