Browse TRAIL Inventories

Extraction of yttrium and rare-earth elements from a euxenite carbonate residue

Electrowinning tungsten and associated molybdenum from scheelite

Electrolytic extraction of tungsten from western scheelite

Electrolyte life in winning tungsten from scheelite

Electrowinning tungsten in halide and phosphate electrolytes

A high-temperature, two-phase extraction technique for tungsten minerals

Preparation of tungsten carbide by electrodeposition

Electrolytic preparation of tungsten metal and tungsten carbide from wolframite

Comparison of techniques for electrowinning tungsten from scheelite

Electrolytic preparation of titanium and zirconium diborides from their oxides and mineral concentrates

Titania from intermediates prepared by soda-smelting ilmenite

Recovering byproduct heavy minerals from sand and gravel, placer gold, and industrial mineral operations

Recovery of byproduct heavy minerals from sand and gravel operations in central and southern California

Laboratory investigation of sulfurous acid leaching of kaolin for preparing alumina

Recovery of byproduct heavy minerals from sand and gravel operations in Oregon and Washington

Recovery of platinum-group metals from Stillwater Complex, Mont., flotation concentrates by matte smelting and leaching

Recovery of scheelite and byproduct sphalerite from western U.S. tactite ores

Recovery of tungsten from a hydrothermally altered deposit

Recovery of platinum, palladium, and gold from Stillwater Complex flotation concentrate by a roasting-leaching procedure

Preparation of ammonium paratungstate from a sodium tungstate-sodium chloride phase


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