Sulfide ores are generally concentrated by grinding with steel media followed by flotation. Interactions between the grinding media and sulfide minerals adversely affect the floatability
Table of ContentsPermeabilitySolution DeliverySolution Recovery The basic condition controlling the choice of a dump or heap leaching process versus a fine grinding-agitation leaching process is
Table of ContentsLocation Mining Type and ConstructionOperational FactorsManpower FactorsCharacteristics TablesDredge Manufacturer and Consultant VisitsManufacturer VisitsConsultant VisitsMSHA Data ReviewFatal Accident SummaryNonfatal Accident SummaryLiterature Review Dredge Operation
Table of ContentsExecutive SummaryHazards in Mining Dredge OperationsFalls into the WaterSlips and Falls on the DredgeElectrical HazardsMechanical HazardsFireHazards on ShoreOther HazardsRecommended Bureau of Mines ResearchSummary
Table of ContentsFerric Chloride SystemEquilibrium ConsiderationsKinetic ConsiderationsExperimental Materials and ProceduresExperimental Results and DiscussionFerric Nitrate SystemExperimental Results and DiscussionKinetic ConsiderationsConclusions There has been growing concern about
Table of ContentsFilter PressesAdvantages and Disadvantages of Filter PressesContinuous Pressure FiltersBelt Filter PressesAdvantages and Disadvantages of Belt Filter PressesVacuum Filtration EquipmentDrum Vacuum FiltersCake Discharge MethodsEquipment
Table of ContentsAcknowledgmentsChemical TreatmentAdvantages and Disadvantages of Chemical TreatmentGravitational MethodsBackgroundConventional ThickenersHigh-Rate ThickenersAdvantages and Disadvantages of Conventional, and High-Rate ThickenersMultiple-Plate ThickenersTypes of Multiple-Plate ThickenersAdvantages and Disadvantages
Table of ContentsOxidation of Sulfide in the Absence of Collectors or DepressantsPyriteGalenaChalcociteChalcopyriteDepression of Sulfide MineralsDepression of Cooper MineralsDepression of PyriteDepression of GalenaSummary Discussion Although a
Table of ContentsTest Equipment and Sample DescriptionAcidproof BrickAcid-Resistant Brick New mineral processing techniques being investigated by the Bureau of Mines and others, such as processing
Table of ContentsPitting Spalling of Grinding BallsGeneral Corrosion RegimeGalvanic Corrosion EffectsInteraction of Corrosion and Abrasion in Grinding Media Wear Wear of grinding media represents a