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Hydrometallurgical leaching is a critical step in reducing the impurity content of molybdenite concentrates; the removal of copper by this method has been widely studied from an industrial perspective. An understanding of the thermodynamic conditions leading to the removal of chalcopyrite from molybdenite concentrates is necessary to guide process optimization and future developments. Thermodynamic...
Rhenium is recovered during pyrometallurgical processing of molybdenum sulfide and copper sulfide ores; the traditional technology involves removing rhenium(VII) oxide, Re 2 O 7 , from the sulfurous gas phase generated during multiple hearth roasting (in molybdenum processing) and smelting (in copper processing). A new technology platform called Looping Sulfide Oxidation (LSO) has...
Conventional processing of molybdenum sulfide concentrates involves decades-old technology and often inefficient processing. Molybdenum trioxide (MoO3) is produced from the sulfide concentrate and used by the steel industry to produce steel alloys. An alternative and more attractive molybdenum product, molybdenum dioxide (MoO2), is produced using the Looping Sulfide Oxidation process. By examining...
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