Recover Hogh Temp Precious Metals in 1800s Slag stockpiles
Southwestern region of the U.S.A is the second largest gold deposits in the world through Nevada, California and Arizona. There used be several thousands of miners and smelters in these areas during gold rush in late 1800s.
There are few hundreds of closed smelters and over 20 million tons of slags are sitting around the closed smelters. We have owned contracts currently 18 piles of slag in these areas. The slags still contain Iridium, Platinum, Rhodium, Gold, and silver as matter of old metallurgy of technology could not refine them for high temperature of smelting and loss of atoms.
Our several scientists who have studied slag over 20 years reveal that our new technology can recover the precious metals. if a smelting process undertaken for the purpose of removing marketable metals leaves metals behind in the slag, the existing fire assay process (a smelting process) would fail to recover those metals. Any of the usual refining techniques does not recover the PMs on slag because they just don’t introduce enough energy. Any useful process must utilize enough energy (in whatever form, electrical, thermal, chemical, etc. or in combination), to break the complex bonds. Our cold plasma process uses high electrical energy in conjunction with chemistry to break these bonds. We expected the hot plasma process line to break the bonds and ionize the metals.