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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TIN-LEAD recovery-recycly (2 replies)

1 year ago
OGUZTURE 1 year ago

Hello dear friends, Proffessors

We have a factory that recovers precious metals from electronic waste. Here we first shred the motherboards of electronic scraps. And we separate the parts. We throw the precious metals in a furnace and melt them. We get an ingot. Inside theingots there is tin, lead, nickel, copper, gold, silver palladium and platinum. We want to separate the tin from this ingot. Because when there is tin, we cannot recover the other metals. We want to liquefy this ingot and precipitate the tin from it.

Looking for a way,proccess or chemichal for Liquefaction and precipitation.

Thank you for your feedback in advance, wish you healthy days.


1 year ago
Jorge 1 year ago

I think, you could try this process. After crushing the electronic scrap, it is important to separate the iron parts using a magnetic separator. The non-magnetic material is treated with nitric acid. In this way it is possible to separate tin as metastannic acid. The solution contents copper and lead. The metastannic acid forms a precipitate and the addition of hydrochloric dissolves it but no gold.

3 weeks ago
Scotman 3 weeks ago

Hi Oguzture

One can also use a less "vicious" acid than Nitric. Thereafter, selective recovery is possible, which can give you the metals without any tin present.



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