Gold Tailings Filtration

The slurry of gold tailings of this case study is produced by the leaching process with cyanide solution. In this project it has been considered also the possibility to wash the gold tailings cake inside the filter press in order to recover as much as possible the residual gold remained inside the gold tailings.

Case Study on Gold Tailings Filtration

Feed Details

Feed : Gold Tailings
Conc. : 45-50% (w/w)
Qty. : > 330 DMTPH

Desired Output Parameters

Filtered Cake Moisture : ≤ 15% (w/w)

Process Engineering

A representative gold tailings sample is collected & tested in Dewater Filter Press R & D Laboratory in Italy in a lab scale Filter Press.
The first step was to understand the gold tailings slurry chemical & physical characteristics. And tests such as elemental analysis, dimensional Particle size analysis, IR Spectroscopic analysis, XRD Crystalline Phase analysis were conducted.

Subsequently multiple filtration tests were conducted on the gold Tailings by altering

filter press plate configurations,
chamber thickness,
feeding,
squeezing,
cake blowing pressures & time

to define the optimum filtration parameters to reach the performance parameters required by the customer.

Result (Dry Cake)

Filter Press & its ancillaries
sizing

The Filtration test results from the gold tailings sample provided us the optimum process parameters to make the sizing of the Filter Press & all the associated ancillary equipment.

The Filter Press & the ancillaries are sized considering the results from the filtration test.

Recommended solution

Membrane plate configuration was choosen for this gold tailings filtration project.

We recommended the customer for 04 Nos. Dewater HP Next Generation Filter Press to reach the total capacity with desired Filter Press performance parameters.

*Our projects are covered under non-disclosure agreement. Hence specific process input-output details can not be shared.
**Please contact us for your specific requirements & we will be happy to assist & support.