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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Gold dissolution lower than silver in leaching tank (1 reply and 1 comment)

A
Alex Loutou
5 years ago
Alex Loutou 5 years ago

Hi all,

Could someone help me why gold dissolution lower than silver as we know silver is slower than gold and during my work in this site gold always above silver recovery.

Note:

  1. leach agitate method
  2. oxyde ore
  3. gold:silver ratio 1:10
  4. Cyanide increase from 200-600 ppm since lower gold dissolution
  5. Using lead nitrate 5 ppm
  6. there is no different of source ore (pit)

Thank you for your attention,

Warm,

Alex

 

 

T
tesaygo1
5 years ago
tesaygo1 5 years ago
Like

There is a numerous factor affecting it which result of slower gold dissolution, maybe the gold particle was much larger than silver particle. We knew that the larger the gold in the ore, make it slower to dissolve. Also possible that the gold particle was lock-in and not well liberated, which cause gold slower dissolution, or the abundancy of silver was to much. Or all the factor i mention was happening during your leaching.

A
Alex Loutou
5 years ago

Thank you Tesaygo,
yeap, I still investigate on it include diagnostic leach test, XRD and mineralogi test. I just confuse because there are no different type of ore (source pit)


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