Pre-aration or not - Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction - Metallurgist & Mineral Processing Engineer

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Pre-aration or not (1 reply)

Wadzanayi

5 years ago

Wadzanayi 5 years ago

Hello Process Engineers

In a CIL circuit, does pre-aration to increase DO levels, always result in the benefits of

reduced cyanide consumption
improved gold recovery

Todd H

4 years ago

Todd H 4 years ago

Preaeration does not always result in benefits but it will not hurt the process. Typically it is used when you have high cyanide consumers such as sulfides and the preaeration oxidizes the surfaces to reduce consumption. It will also reduce the leach DO demand.

In most leach circuits preaeration is not required.

Regards

Todd Harvey - Global Resource Engineering http://www.global-resource-eng.com

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