Table of ContentsDescription of Samples TestedInitial Testing of Reagents for FlocculationBench-Scale Batch Flocculation TestsTest ProcedureEffectiveness of Polyethylene Oxide PolymersSEM Examination of Flocculated SystemsTests on Plant
Table of ContentsMaterialsEquipment and ProcedureResults and DiscussionDetermining Leaching ConditionsDetermining Extraction ConditionsDetermining Stripping ConditionsMultistage StudiesDetermining Alumina PurityConclusions Increasing usage of aluminum and competition for foreign reserves
World demand and production of diamonds both for gem and industrial purposes has increased nearly five-fold during the past 25 years. Improved mining and recovery
The production of gold bullion from gravity or flotation concentrates is often an important economic consideration for an isolated gold mining operation. It is assumed
COARSE FLOTATION OFFERS IMPORTANT SAVINGS THROUGH REDUCED OPERATING COSTS Grinding cost varies greatly depending upon the size reduction required. For example, it takes approximately 50%
The handling of large quantities of gold-bearing gravels is of utmost importance for most successful placer operations. In addition to providing efficient washing and recovery
CHUTE SAMPLER FINDS WIDE APPLICATION ON DRY MATERIALS Many installations are confronted with sampler arrangements where the material is handled in chutes and installation of
Table of ContentsZinc Chloride-Alkali Metal Chloride ElectrolytesProcedure & ResultsLiquidus Temperature DiagramsEffect of Electrolyte CompositionSludge Formation in ElectrolytesInternally Heated Electrolytic CellOperation of a 1,500-Amp CellConclusions Zinc
Table of ContentsExperimentalMaterialsEquipmentMelting ProceduresIngot TestingResultsElectric-Arc-Furnace-Melted IngotsElectroslag-Remelted IngotsForged and Rolled BarMicrocleanness and MicroporosityMechanical PropertiesTensile PropertiesImpact PropertiesMicroscopyOpticalScanning Electron MicroscopyDiscussions and Conclusions Demand for pressure vessel steels for
Table of ContentsApparatus and Experimental TechniquesRotating Electrode CellsSingle Channel CellsMulti-channel CellResultsRotating Electrode CellsRing ElectrodesCylinder ElectrodesSingle-Channel CellSynthetic Electrolyte TestsTankhouse Electrolyte TestsComparison with Industrial Refining CellsMultichannel CellInitial