Table of ContentsApparatusExperimental Procedure Results of the preliminary tests have demonstrated the possibility of electrorefining beryllium in KCl-LiCl-BeCl2 baths. Qualitative spectrograph analyses of the starting
Table of ContentsAcknowledgmentsDescription of Equipment and Test ProceduresMethod of Evaluating EfficiencyInfluence of Operating VariablesFeed RatePulp RatioInfluence of Feed CompositionInfluence of Undersize MaterialInfluence of Near-Aperture Size
Table of ContentsOccurrence of Cesium and RubidiumEvaluation of Known MethodsFlame and Bead TestsMicrochemical TestsChemical Spot TestsExtraction of Rubidium and Cesium from Raw MaterialsField Test for
Table of ContentsWashing and SizingRoasting and Magnetic SeparationConnors Brothers DepositLimoniteSideriteMixed Limonite and SideriteO. C. Pouns DepositLimoniteSideriteMixed Limonite and SideriteLee Ben Pynson DepositLimoniteSideriteMixed Limonite and SideriteEttie
Table of ContentsPreparation of Goethite SampleQuartz SampleReagentsExperimental Procedure and ResultsDetermination of the Isoelectric PointVacuum Flotation TestsContact Angle MeasurementHallimond Tube TestsHallimond Tube Tests on QuartzBatch Flotation
Table of ContentsEquipmentElectrolytesExperimental ProceduresConclusions The Federal Bureau of Mines refined chromium from an aqueous electrolytic process in molten sodium chloride-chromium chloride electrolytes. Oxygen and nitrogen
Table of ContentsDescription of ApparatusOperating ProcedureCoals GasifiedResultsEffects of Variables on Carbon ConversionResidence TimeSteam ConcentrationTemperatureRank of CoalEffects of Variables on Gas Composition The results were surprisingly
Table of ContentsJohn Day ChromitesNature of OresPhysicalChemicalFlotationGeorge Len OreBillie Girl OreBig Jim OreTwin Sisters ChromitesNature of OresPhysicalChemicalFlotation Gora OreAlamether OreMouat ChromitesNature of OrePhysicalChemicalFlotation MillfeedFine Table
Table of ContentsTetravalent CeriumTrivalent Rare-Earth ElementsAnalysesTetravalent CeriumTrivalent Rare-Earth Elements In separating and purifying rare-earth compounds, ion-exchange and liquid-liquid extraction techniques have exhibited the greatest potential.
Table of ContentsLeonardite Occurrence and PropertiesPresent Investigations Leonardite is a coallike substance, similar in structure and composition to lignitic coal and believed to be derived
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