Search U.S. government technical reports digitized or harvested by TRAIL.
Progress reports - metallurgical division.
Concentration of manganese ores from Gila, Greenlee, and Graham counties, Ariz.
Concentration of gravity tailings from the Grasselli deposit, Park City, Utah
Electrochemical recovery of high-purity nickel and cobalt from crude nickel and ferronickel
Recovery of precious metals from electronic scrap