Browse TRAIL Inventories

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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