Table of ContentsExperimental ProcedureLead SintersSintered Concentrate No AdditivesPbS-SiO2 MixturesPbS-ZnS-SiO2 MixturesPbS-CaO-SiO2PbS-CaO-ZnSPbS-ZnS-SiO2-CaOPbS-SiO2-ZnS-Fe2O3Discussion and Conclusions Blast furnace smelting of lead began over 100 years ago. The preparation of
Table of ContentsExperimental ProcedureConclusions The conversion of coal into a high-Btu gas as a means of augmenting existing supplies of natural gas has been the
Table of ContentsRoast-Leach Process DescriptionExperimental ResultsOxidation RoastReduction RoastLeachingSolvent ExtractionElectrowinningSummary and ConclusionsAppendix A.- Process ChemistryRoastingLeachingSolvent Extraction and ElectrowinningAppendix B Equipment and ProceduresFluid-Bed RoastingEquipment and OperationStandard Leach
Table of ContentsWastesFurnace DustsMill ScaleCenterless Grinding SwarfWeighted Composite of WastesExperimental ProceduresPelletizingSmeltingReduction with CarbonReduction With Carbon Plus Scavenging With FerrosiliconTest ResultsSummaryDiscussion and Conclusions The manufacture of
Table of ContentsLow-Temperature Heat CapacitiesHigh-Temperature EnthalpiesStandard Enthalpies and Gibbs Energies of FormationDiscussion The present investigation of the low-temperature heat capacities and high-temperature enthalpies of synthetic
Table of ContentsExperimental ProceduresResults and DiscussionIsothermal TestsReaction StoichiometryRate of ReactionSeparation of Reaction ProductsPurification and Electrolysis of ZnSO4 SolutionSummary This investigation was conducted by the Bureau
Table of ContentsAcknowledgmentsProcedureResultsConclusions The Federal Coal Mine Health and Safety Act of 1969 specified that the average respirable dust level to which a miner is
Table of ContentsEquipmentSolution DescriptionExtraction Column TestsEffect of Solution Flow RateEffect of Compartment HeightEffect of Amount of Resin WithdrawalSpacing Above the Resin BedElution Column TestsSummary The
Table of ContentsRadiographic PrinciplesPreliminary StudiesSpecimens and EquipmentTechnique DevelopmentExperimental Radiographic ProceduresSpecimens and AnchorsTesting ProceduresPreliminary MicrodensitometryEnhancement of Radiographic DataPhotographic MethodsDensitometric SubtractionManual MethodElectronic Method With Tandem MicrodensitometersLimestone Specimens
Table of ContentsSmelting Prereduced Nickel Concentrate in an Electric-Arc FurnaceMaterials Used for Smelting Tests in the Electric-Arc FurnacesEquipment and Operating Procedures for Smelting Tests in
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