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- Concentration of oxide manganese ores from the Artillery Peak deposit, Mohave County, Ariz.
- Concentration of fluorite ores from Arizona, California, Idaho, Montana, Nevada, and Wyoming
- Concentration of manganese ores from Grand and Emery Counties, Utah
- Concentration of oxide manganese ores from the Havasu Lake District, California and Arizona
- Concentration of Richmond Hill oxide manganese ore from Lead, Lawrence County, S. Dak.
- Concentration of oxide manganese ores from the Adams and Woody properties, Coconino County, near Peach Springs, Ariz.
- Silver recovery from waste photographic solutions by metallic displacement
- Chemical reclaiming of superalloy scrap
- Recovering gold from stripping waste and ore by percolation cyanide leaching