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Ted Mooney, P.E. RET
The authoritative public forum
for Metal Finishing 1989-2025
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Recovery of tin from waste plating solutions
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(little can be learned from abstract questions, so many readers skip them)
Tin Recovery: Please explain the alkaline precipitation process.
B ManivannanTechnical Consultant - Chennai Tamilnadu
September 30, 2021
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RFQ: Hello,
I am looking for tinplate waste. Waste quality 0.15 to 0.30 mm in coils or third grade quality product. If you any thing related to my demand please contact me.
Thanks,
Hamid W- Pakistan
2002
Ed. note: This RFQ is outdated, but technical replies are welcome, and readers are encouraged to post their own RFQs. But no public commercial suggestions please ( huh? why?).
Q. We have an accumulation of acid tin plating solution from dilution and de-sludging our production processes. Wondering if anyone knew of a method of either recovering the tin metal (some in solution and some as a precipitate) from this redundant solution.
We are located in Australia so any out-of-house solution to the problem would need to be local to us.
The solution contains around 25 g/ltr in 10% sulfuric acid solution but there is a lot of sludge as well some of which is almost spadeable due to evaporation of the liquid.
Any suggestions appreciated.
Bob Lynch
plating company - Sydney, Australia
2004
A. Bob,
Two simple methods have been used to recover tin
- Alkaline Precipitation.
- Electrolytic recovery on Stainless steel sheets.
Either method correctly set up can work for you.
Asif Nurie [deceased]
- New Delhi, India
With deep regret we sadly advise that Asif passed away on Jan 24, 2016
2004
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