Disintegration of silica-rich chromite

Enzymatic processing of materials containing chromium and protei

Extracting chromium (III) from aqueous solutions with 2-ethylhex

Extracting tungsten from ores and concentrates

Extraction of tungsten from ores

Extraction of tungsten from spent or scrap catalyst materials

Extraction process for the recovery of tungsten from low level s

Flash roasting of molybdenum sulfide concentrates in a slagging

Flash sublimation and purification of molybdenum oxide

Fluidized-bed roasting of molybdenite concentrates

Formation of tungsten monocarbide from a molten tungstate-halide

Formation of tungsten monocarbide from a molten tungstate-halide

Hydrometallurgical process for the recovery of valuable metals f

Hydrometallurgical processing of molybdenite ore concentrates

Hydrometallurgical production of technical grade molybdic oxide

Hydrous trivalent chromium oxide/carbon particles and method of

Ion exchange chromate removal

Ion exchange chromate removal

Leaching metals from spent hydroprocessing catalysts with ammoni

Leaching nickel, cobalt, molybdenum, tungsten, and vanadium from