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RE: Copper Chloride solution


I'm guessing this is a ferric chloride solution that has been used to etch
copper. Here in southern California, a few companies were offering a
recycling service. They would charge a small fee to take the waste and
regenerate it. Their big profit was in copper recovery.

Since you've stated that each drum contains 100 pounds of copper, there is a
big incentive to recover the metal. At $1 per pound, there's $3,000 sitting
in those drums. You could probably get it out with a simple power supply and
some carbon steel electrodes.  The copper will plate out and the iron will
dissolve, yielding a ferric chloride solution.  Ferric chloride solution is
used in waste water treatment and circuit board etching.

Talk to a few electroplaters in your area and they should have lots of info
on how to recover any metal of value. Hope this helps.


> ----------
> From: 	Lin K. Hill[SMTP:l_hill@des.state.nh.us]
> Reply To: 	Lin K. Hill
> Sent: 	Monday, November 22, 1999 7:19 AM
> To: 	p2tech@great-lakes.net
> Cc: 	g_carrigan@des.state.nh.us; p_lockwood@des.state.nh.us
> Subject: 	Copper Chloride solution
> Dear P2 Tech:
> I am looking for  possible re-use of a copper chloride solution. 
> Any idea what type of industry might find this useful? 
> Unfortunately, I do not have good chemical analysis info on the
> solution, other than it has a very low pH (0-1) and that it was
> used in the engraving process.  
> This type of solution is not a hot commodity on the waste
> exchange listings I have checked. At this point, however, I am
> only looking for the possibility of  re-using the solution, to give the
> one-guy operation a bit more time for finding alternatives to
> disposal.  I realize most waste exchanges like a constant supply
> of a "waste" chemical at a standard amount (ie xx gallons per
> month). This would be a one time deal, of more than 30 drums
> containing approximately 100 pounds of copper per drum.  
> Any ideas of how this solution might be useful, once good 
> chemical analysis information is available?
> lkh
> Lin Hill
> 603-271-2902