Table of ContentsMaterial Equipment and ProcedureExperimental ResultsLeaching Copper Sulfide MineralsDiscussion of ResultsCovelliteChalcopyriteChalcociteBorniteLeaching PyriteEffect of pH Variations The high reactivity of chlorine as an oxidizing agent
Table of ContentsCementation TheoryExperimental Procedure and ApparatusResults and Discussion Cementation of copper onto iron is a historically old process for recovery of copper from leach
Table of ContentsCatalyst PreparationActivity MeasurementsGas ChromatographyResults and Discussion The activity of rare-earth compounds for catalysis of the hydrogen-oxygen reaction is of interest because of their
Table of ContentsGeneral GeologyVan Stone Field InvestigationSampling, Instrumentation, and Field ObservationsConsolidation and Grain SizeWater MovementField Resistivity TestsLaboratory DataEnvironmental Field and Laboratory InvestigationStream Sediment AnalysisResults and
Table of ContentsCyanidation-Barite FlotationCyanidation TestsBarite Flotation of Cyanidation ResiduesSalt Roasting-Cvanidation-Barite FlotationSalt Roasting-Cyanidation TestsBarite Flotation of Salt Roasted-Cyanidation ResiduesBarite Flotation-Cyanidation and Flotation-Salt Roasting-CyanidationBarite FlotationCyanidation and Salt
Table of ContentsFinite-Element Stope ModelRock PropertiesHydraulic Fill PropertiesComputer AnalysisComments on Computer AnalysesComparing Computer Results and Field MeasurementsFuture Research Mining companies have been confronted with a
Table of ContentsGeneral Underground Mining ProblemLiterature ReviewDefinitions and Sample ProblemProblem FormulationSolution AlgorithmGeneral AlgorithmLeast-Cost Path AlgorithmDiscussion of Solution AlgorithmSample ProblemAlgorithm StructureImplementationApplication to a Coal PropertyComputational Experience
Mines are recycling more water than ever before. This is a logical response to water stresses (see our article on Water Balances). However, there is
Table of ContentsCopper IndustryIron IndustryLead and Zinc IndustryPhosphate IndustrySite DescriptionsCopper IndustryRay Mines Division, Kennecott Copper Corporation, Hayden, ArizonaMission Unit, ASARCO, Sahuarita, ArizonaPima Mine, Cyprus Pima
Table of ContentsPrinciples of Analyzer SystemHydrosizingParticle SensingElectronicsProcedureExperimental ResultsSingle-Mineral ExperimentsTwo-mineral ExperimentsAnalyzer Prototype The knowledge of particle size distributions is a critical factor in the monitoring, control
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