Search U.S. government technical reports digitized or harvested by TRAIL.
Recent practice at the Bureau of Mines, Boulder City, Nev., titanium plant
Acid-ferrous sulfate leaching of low-grade manganese carbonate and oxide ores, Cuyuna range, Minnesota
Operation of a dithionate-process pilot plant for leaching manganese ore from Maggie Canyon deposit, Artillery Mountains region, Mohave County, Ariz.