Project Background:

A mining company in Chile faced challenges in processing hard rock gold ore: low grade, fine dissemination, and a low recovery rate of only 45% with their current chemical method, which also posed environmental risks. The client's goal was to increase gold recovery while adopting a more environmentally friendly gravity separation process.

Solution:

We designed a more efficient and eco-friendly production line for the hard rock gold ore. The run-of-mine ore is crushed by a jaw crusher and a cone crusher and then fed into a ball mill for liberation. The milled product is first processed by centrifugal concentrators to recover fine free gold, and finally, shaking tables are used to produce the final concentrate.

Key Results:

Gold recovery rate increased to 92%: The synergy of various gravity separation equipment significantly reduced the loss of fine gold and improved efficiency.

Operational costs reduced by 18%: The absence of cyanide reagents and lower tailing treatment costs contributed to the reduction.

Entire process is eco-friendly and non-polluting: Tailings can be stored safely, significantly lowering environmental costs.