Hi, Electrowinning is not custom synthesis? Make pretty rocks out sludge (malachite)? People spend a lot of money to dig up malachite to make copper. Why reverse the process? Waste treatement is not a profit center for most shops and I doubt that an additional cost burden will be look upon favorably by the owners. Hauling salts is more expensive that hauling metal. The trade off is what is the cost of generating the metal vs the salt vs the ooh ahs from the local regulators as they look at your "clean" recycling system. The show is worth a few buck but I don't think you're going to find the cost of generating a complex salt cheaper that what is being done now. In fact, unless the mines close, you're not going to get any cost benefit by changing what everyone is doing now. I guarantee you, the excess costs have been pretty much rung out of waste treatement. I doubt if you're going to get someone to fund this for you. Now, if you get a no maintanence electroless electrowinning system, now that would be something that you could sell! Bob Mesick Remco Engineering www.remco.com/home.htm You wrote: Date: Sat, 15 Feb 1997 17:51:52 -0500 From: [log in to unmask] To: [log in to unmask] Subject: FAB / Waste Reuse Message-Id: <[log in to unmask]> Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Content-Transfer-Encoding: 7BIT Are there any outfits out there who have engineered their waste streams to produce salable copper salts? I am not referring to electrowinning or sludge reclamation but full scale custom synthesis to minimize wasted copper. Take the reclamation of copper sufate, synthesis of malachite, or other copper salts with different gegenions. Are there any sources of funding to initiate such a project? Does anyone see any potential buyers? One could view one board shop as a remote source for material; but the collective of shops could be a major source. Thank you, One Overactive, Curious Chemist [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************