The authoritative public forum
  for Metal Finishing since 1989
-----

Recycling chopped tinned copper wire

1998

I'm interested in recycling chopped tinned copper wire.

For this purpose I need to remove the tin from the copper completely. Then the copper would be converted to oxygen free copper rod by a continuous casting process. No traces can be left on the wire, since our limit on impurities is 10 ppm for tin ( more would affect the conductivity of copper). I've been told that leaching and electrowinning is the only solution.

I'm open to hear some solutions from the experts.

Gianfranco De Bei

---

Dear Mr. De Bei,

hello, I am currently researching about detinning, but I don't know that much information. I am doing this for a friend from the Philippines. I was wondering if you could help me with my research.

Vicky Reonal
Philippines
1999

Hi all! I am looking for a new technologies for detinning. At present we use acidic electrolysis process to extract tin from MS wire. Can anyone suggest me the new cost effective technology to improve the process. I am ready to share all my information. Regards,

Ahmendra Kansal
- Ahmedabad, India
2000

Hi all! I am looking for a new technologies for detinning. At present we use acidic electrolysis process to extract tin from MS wire. Can anyone suggest me the new cost effective alkaline process/ technology to improve the process. I am ready to share all my information. Regards

m.l. desai
- ahmedabad. gujarat, India
2001

---

Hi, folks. It seems to me we have three responders, all of whom have some experience and expertise in this, claiming they are willing to share, but none actually making the move :-)

It's not that hard, people, you simply say: "XXX is the process I use, but we only get YYY efficiency, and we also have a problem with ZZZ" :-)

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey