Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

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acid consumption modelling (2 replies)

J
Jaime Jacob
6 years ago
Jaime Jacob 6 years ago

Hello

I am working with column leaching test for copper ores and I need to model the net and raw acid consumption.
Anyone could help me with this? Send me some scientific study?

I hope that can help me
Thank you very much

Jaime

d
David
6 years ago
David 6 years ago
Like

The question is not clear if the concern is regarding column test procedures or interpretation of column results regarding acid consumption. Of course the difference between the total gangue and net gangue is simply the copper dissolved by acid which is not considered consumption as it is returned from the SX/EW circuit. (1.54g H2SO4/g Cu).

Attached is a presentation given in a leaching short course in 2012 explaining the main drivers in gangue acid consumption (mineralogy and pH) which should give some perspective on how to evaluate ore test results.

You may also find the answer in https://www.911metallurgist.com/blog/heap-leaching

THE-GEOCHEMISTRY-OF-COPPER-LEACHING-JDEP3-12-2012.pdf
J
Jaime Jacob
6 years ago
Jaime Jacob 6 years ago
Like

Hello David

What I need to do is modelling the gross comsumption of acid from a column leaching test.

For example, if we want to model a copper recovery, we use the expression: 

R = Rmax *(1-exp(-k*t)) and we fit the model wit the data to obtain k parameter.

I would like to know if there a model for the gross comsumption acid?

Greetings

Jaime

 


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