Uniform spraying of the leaching solution and continuous monitoring are used for assessment. The heap is also usually overturned in the later stages to ensure uniform leaching.

Spraying should be frequent, but intermittent, and not continuous. It should not be done continuously.

 The optimal range for reagent concentration is generally between 0.2 and 7 parts per thousand. Silver nitrate testing is simple and fast, and it is used to adjust the dosage based on the test results. It’s recommended to add a small amount each time and repeat the process, rather than adding a large amount all […]

A high clay content will affect the leaching rate, mainly by affecting the permeability and air permeability of the ore heap. The solution can involve agglomeration, using small heaps, or even large-scale vat leaching to solve this problem.

The main elements that affect the leaching rate are arsenic, carbon, copper, and excessively high sulfides. Excessive iron also has an impact. Ultimately, it depends on experimental data or adjusting auxiliary agents to improve efficiency.