Slag Stockpile

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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.

Slag is a byproduct of the smelting process, which is used to extract metal from its ore. It is a mixture of waste materials that are produced when the ore is melted and the impurities separate from the molten metal. Slag can contain a variety of substances, depending on the type of ore being processed, as well as the specific smelting process being used.

In the case of old smelters, the slag that was produced may contain a range of substances, including heavy metals, such as lead, zinc, and copper, as well as other potentially harmful compounds. This is because older smelting processes were often less efficient than modern methods, and may have used more primitive technology and techniques that resulted in a greater amount of waste materials.

The environmental impact of old smelter slag can be significant, as it may contain harmful substances that can leach into the surrounding soil and water. Proper disposal and management of old smelter slag is therefore important to protect the environment and human health.