Search U.S. government technical reports digitized or harvested by TRAIL.
Preparation of manganese electrolyte from manganese mattes and pure oxides
Pilot-plant investigations :matte smelting of Chamberlain, S. Dak., Manganese ore
Low pressure leaching of Duluth complex matte
Recovery of metal values from lead smelter matte by chlorine-oxygen leaching
Separation of copper-nickel mattes from Duluth gabbro concentrates by flotation and magnetic methods
Introduction of sulfur into copper converter slags to produce copper matte
Low-iron Cu-Ni-Co matte from Duluth complex sulfide concentrate by direct smelting