The gold leaching rate of environmentally friendly gold extractants using mining insects varies depending on the type of ore and the process. The core data is as follows:
 
Copper containing gold ore (Cu<1.5%): Under an alkaline system with pH 9.5~10, the gold leaching rate is stable at 85%~92%. The heap leaching/pool leaching/carbon slurry process is universal, and copper is basically not leached, resulting in low drug consumption.

Easy to leach oxidized ore/quartz vein ore: leaching rate of 88%~95%, 15%~30% shorter than the cycle of sodium cyanide.

→ Complex ore containing arsenic/carbon/sulfur: with a dedicated leaching aid, the leaching rate is 80%~88%, and the ability to resist impurity interference is strong.

Industrial testing: Field applications in multiple mines have shown that the gold leaching rate is over 85%, and its stability is better than that of thiosulfate and sodium cyanide.
 
Key influencing factors:
 
→ Ore properties: Copper content, oxidation rate, and degree of encapsulation play a decisive role, and high copper (Cu>1.5%) or high encapsulation require pre-treatment.

→ Process parameters: pH 9.5-10, reagent concentration 0.03%~0.1%, slight aeration, leaching time 24-48 hours (heap leaching appropriately extended).

→ Slurry conditions: Grinding fineness, slurry concentration, and impurity content affect leaching efficiency and need to be optimized through experiments.
 
On site suggestion:
 
Conduct small-scale experiments with actual ore to determine the optimal parameters and ensure stable leaching rate.

The gold extraction effect is better by following the operation of "lime adjusting pH 9.5-10 → adding mineral insect agent → slight aeration → leaching for 24-48 hours".