Search U.S. government technical reports digitized or harvested by TRAIL.
Separation of rare-earth elements in bastnasite by ion exchange
Hydrogen as a retaining ion for rare-earth separation by ion exchange with EDTA and DCTA
Naphthenic acid solvent extraction of rare-earth sulphates
Extraction of euxenite metal values by fusion with ammonium sulfate or ammonium bisulfate
Investigation of oxidation systems for improving gold recovery from carbonaceous materials
Extraction behavior of cerium-group lanthanides in a primary amine-chelating agent system
Recovery of cerium and lanthanum by ozonation of lanthanide solutions
Amino acids as retaining agents for separation of rare-earth elements on ion-exchange resin
Electrolytic oxidation of carbonaceous ores for improving gold recovery
Electrolytic oxidation of cinnabar ores for mercury recovery
Oxidation process for improving gold recovery from carbon-bearing gold ores
Recovery of silver and mercury from mill tailings by electrooxidation
Extraction of molybdenum from ores by electrooxidation
Extraction of gold from carbonaceous ores :pilot plant studies
Recovery of mercury from cinnabar ores by electrooxidation
Copper recovery from chalcopyrite by a roast-leach procedure
Extraction of silver from refractory ores
Extraction of molybdenum and rhenium from concentrates by electrooxidation
Reduction of tetravalent cerium and its application to stripping from tri-©œn-butyl phosphate
Lead-zinc extraction from concentrates by electrolytic oxidation
Recovery and separation of molybdenum and rhenium from a process solution
Recovery of mercury from cinnabar ores by electrooxidation :extraction plant amenability tests
Processing gold ores using heap leach-carbon adsorption methods
Copper and silver recovery from a sulfide concentrate by ferrous chloride-oxygen leaching
Enhancing percolation rates in heap leaching of gold-silver ores
Recovery of silver from chloride leach solutions by iodide precipitation
Recovery of gold from arsenopyrite concentrates by cyanidation-carbon adsorption