Table of ContentsArsenicAntimonyBismuthSeleniumTellurium Minor-element interactions in equilibrated samples of copper matte and silica-saturated iron silicate (fayalite) slag have been studied by the Bureau of Mines
Table of ContentsProcess ChemistryProcess Implications Most copper ore currently being mined contains copper mainly as chalcopyrite. Since chalcopyrite by itself is only about 35 percent
Design, fabricate, and test a machine capable of operating in coal seams 48-inches and thicker that can reduce the time, expense, and injury potential inherent
Table of ContentsExperimental ProcedureExperimental ResultsDiscussionLeaching MethodsLeaching of Base SlagsLeaching of Altered SlagsPhase Diagram Evidence for CaO:SiO2 InfluenceOxidation of CaO·Cr2O3Selection of CaO:SiO2 Ratios for Prevention of
Table of ContentsSmeltingStarting MaterialsEquipmentOperating ProceduresResultsOxidation-Sulfation-LeachingChemical Reactions and Theoretical ConsiderationsEquipmentOperating ProceduresResultsMaterial and Energy Balances To help assure an adequate supply of raw materials to meet national
Table of ContentsProcess DescriptionApplication of Chloride HydrometallurgyMaterials of Construction The fact that chloride oxidates can solubilize base metals from sulfide concentrates has been known since
Table of ContentsExperimentalResults and DiscussionKinetics of Reaction This is of special interest in hydrometallurgical processing since it provides an upgraded sulfide and rejects iron to
Table of ContentsAnalytical and Toxicologial TestingEvaluation of Chemical and Physical Treatment ProcessesDevelopment Of The Biological Treatment Process Metal complexed cyanides in wastewaters form as a
Table of ContentsMeasurement of Ball ChargeWeight Loss FactorsMill Performance Summary Improper size distribution of the grinding media in a multicompartment mill can be a source
Table of ContentsMiniplant DescriptionExperimental ProceduresBench-Scale LeachingBench-Scale Attrition TestingMiniplant ProceduresMaterialsDiscussion of ResultsBench-Scale TestsModification of Miniplant ReactorsEffects of Reactor Modification on Miniplant Leaching In the clay-HCl miniplant,