metalmickey
Member
- Joined
- Apr 1, 2011
- Messages
- 21
I have seen advice on the forum to leach catalytic converters rarther than milling them as they need grinding very fine. Which make sence if the money is only coated on them, but when I decided to investigate catalytic converters I bought a hand full and started braking them up. When I cut through the can I acidently cut into the honeycomb of some. I could see set in the ceramic, some little nuggets. Different sizes some really tiny no bigger than a millimeter the biggest I could see no bigger than a few millimeters. They were like a gold colour. I thought that was what the prize was. Until I got hold of a platinum, palladium recovery manual. The manual used the milling method so I thought, that would still get at those little nuggets but I bought lazersteves DVD which shows the leaching method on combs and I have seen How Its Made on Discovery Channel which shows the coating of combs in PGM solution, so leaching them would make sense but if some manufacturers mix things into the ceramic and its also worth recovering people who are leaching maybe missing a trick. Also I found that some cats had a fiber serounding the combs. In some of the cats the fiber had flakes of what looked to me like metal flakes (silver colour). Others there was just fiber which I thought ment they were not worth as much. I welcome anyones feedback.
