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 leaching with sodium thiosulphate (1 reply)

S
Seeker
8 years ago
Seeker 8 years ago

Kindly explain following points about gold leaching with thiosulphate from gold plated processors

What is the ratio of acid to acidify the solution for gold leaching with sodium thiosulphate? Which acid is best to acidify the solution? What compound of iron is best to speed up the dissolution of gold and how much quantity of it should be used? When we talk of adding stabilized sodium borohydride to the solution for the precipitation of gold, do we first add sodium hydroxide to the gold bearing thiosulphate solution or we mix the sodium hydroxide solution with sodium borohydride and then add it to the gold thiosulphate solution? How do we do it? Please also explain the ratio of sodium borohydride and sodium hydroxide in simple terms.

Thanks & Regards

(unknown)
8 years ago
(unknown) 8 years ago
Like
1 like by Seeker

Hi Seeker and welcome,

have you seen https://www.911metallurgist.com/blog/sodium-thiosulphate-gold-leaching


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