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carbon adsorption (1 reply)

kahonde
14 hours ago
kahonde 14 hours ago

hie,

can caustic soda at pH 12 affect carbon adsorption of gold ?

Cyanide
3 hours ago
Cyanide 3 hours ago

Adsorption is virtually independent of the pH value in the range 6 to 12. See 7th and 5th page of PDFs.

Some say pH >11 will affect slurry rheology characteristics, C suspension & C passivation or reduced adsorption.

Why 12?  It appears excessive.

https://www.911metallurgist.com/cyanidation/effect-of-ph-on-cyanidation-process/

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