OMG said:I'm working on an acid regeneration technique, one one way I'm going to try is bubbling SO2 through CuCl2.
2CuCl2 + SO2 + 2H20 -> 2CuCl + 2HCl + H2SO4
so.. by oxidizing the dissolved copper with sulfur dioxide, you get HCl and sulfuric acid.
Ed said:Can I reuse The HCL + peroxide from my copper recovery tank?
lazersteve said:Wirenut,
I have only tried an ordinary aquarium pump. It wouldn't hurt to try other sources of air and let the forum know your results.
Steve
Depends on your objective, really. If you are trying to recover from a batch gone bad, zinc will do that, but if are looking for selective precipitation, zinc is a loser.gold1961 said:Yes Zinc the way to go.......
Harold is right on the money(as Ushual)Harold_V said:Depends on your objective, really. If you are trying to recover from a batch gone bad, zinc will do that, but if are looking for selective precipitation, zinc is a loser.gold1961 said:Yes Zinc the way to go.......
You can accomplish the same thing with scrap steel, which is far easier and cheaper to procure. I suggest keeping zinc for those cases where it is needed. Precipitating values from cyanide, for one.
Harold
Lazersteve said:The HCl is not what dissolves the copper in this reaction it's the copper chloride.
If you add iron, steel, aluminum, etc. you will remove the copper as stated and the solution will no longer be useful as AP.
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