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
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
Extraction behavior of cerium-group lanthanides in a primary amine-chelating agent system
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
Copper and silver recovery from a sulfide concentrate by ferrous chloride-oxygen leaching
Processing gold ores using heap leach-carbon adsorption methods
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