Blogs
Flotation Bubble Surface Compression
At the meeting of the local membership of the American Institute of Mining Engineers on December 14 last the question was asked by one of the speakers: “Why does the greased needle float on the surface of a tumbler of water and the wetted needle sink?” Did one or another of the experts present rise and say that it was
Electromagnetic Separation
Table of ContentsElectromagnetic Separation response by MineralsSuspended Laboratory MagnetLaboratory Horseshoe MagnetCross Belt Laboratory Magnetic SeparatorLaboratory Magnetic Separator: Dings Crockett (Wet Type)Laboratory ElectoMagnetic Separator: Dings Davis Tube TesterLaboratory Magnetic Separator: Stearns (Ring Type) Starting with a mixture of any of the above minerals it may be determined whether or not they can be separated by high tension, magnetic, or gravity methods and whether any one, or a
Flotation of Arizona Copper Ore
For some time past the company has been experimenting with a view to finding the best method of concentrating the sulphide ore before smelting. The first test-mill consisted of two sets of rolls, one Chilean mill, one Hardinge conical mill 6 ft. diam. by 12 in. cylinder, Richards hindered-settling classifier, Deister tables, some kind of vanner, and a 50-ton Minerals
Uranium Ore Processing Methods
Table of ContentsCrushing Uranium OreSampling for UraniumUranium Grinding and ClassificationUranium Lime Flotation CircuitUranium Acid Leach CircuitClassification — Sand WashingRIP Resin in Pulp Processing of UraniumUranium Precipitation SectionUranium Solvent Extraction ProcessDesign a Uranium Solvent Extraction Circuit The process flowsheet of Uranium generally outlines the latest proven processes for uranium concentration known as “Resin In Pulp” more commonly referred to as RIP To
Tungsten Metallurgy
Table of ContentsWhat is Tungsten Used ForTungsten MineralsTungsten Ore GeologyTungsten Ore SpecificationsTreatment of Tungsten OresGravity ConcentrationMineral Jig in Tungsten CircuitsLaboratory TestsBuckman ConcentratorFlotation of Tungsten OresMagnetic SeparationTungsten Process & Circuit FlowsheetsRecovery Tungsten by GravityRecovery Tungsten by Gravity and Bismuth by FlotationRecover Fine Tungsten SlimesRecovery Tungsten by Leaching and Flotation MethodTungsten FlotationFerberite FlotationJigging TungstenRecover Tungsten from Wolframite Gold OreExtraction of Tungsten from Scheelite
Extracting Tungsten from Wolframite Gold Ore
Table of ContentsTHE Tungsten Rich Wolframite Ore FLOWSHEETTungsten Rock Crushing CircuitTungsten Grinding CircuitTungsten Flotation CircuitShaker Table CircuitBuckman Tilting Concentrator to recovery WolframiteSummarizing the Tungsten Recovery & Wolframite BeneficiationBeneficiation of Microsize Wolframite by Flocculation and Gravity SeparationFlocculation & Dispersion Behaviors of Single MinereralBehaviors of Flocs on Gravity Units The present great demand for tungsten due to world conditions has resulted in an increase of tungsten ore
Extraction of Tungsten from Scheelite Ore
Table of ContentsThe Flowsheet for Tungsten & Scheelite RecoveryCrushing Tungsten OreJigging for Tungsten in ScheeliteTungsten Tabling CircuitGrinding Tungsten RockTungsten FlotationCircuit for Cleaning Tungsten and Upgrading ScheeliteScheelite Market SpecificationsProduction ProblemsReagent CombinationsConclusion High price and ready market for acceptable tungsten concentrates present a very attractive incentive for the mining and processing of tungsten ores. Since all tungsten ores are very friable and slime easily, concentration must take place as soon
Crushing and Grinding Wet & Sticky Ore
Table of ContentsSolution to the Wet Ore Processing ProblemThe Wet Ore Processing FlowsheetCRUSHING AND SCRUBBINGCLASSIFICATION AND THICKENING OF PRIMARY SLIMESLARGE TONNAGE CRUSHING PLANTSGRINDING AND CLASSIFICATION FLOTATION In the handling of wet, sticky ores such as encountered in tropical areas having distinct dry and rainy seasons, the crushing plant is a section of the mill which must be planned very carefully. Unless this is
Titanium Ore Processing and Beneficiation
Table of ContentsTitanium Ore Extracting FlowsheetCrushing of Ti OreGrinding and Coarse ConcentrationHydraulic Classification and TablingFlotation of Titanium FinesFiltering and DryingMagnetic and Electrostatic SeparationPossibilities For All Flotation Treatment of Titanium Ore To develop a flowsheet for separation of high grade titanium-rutile from ilmenite, that will meet market requirements. Rutile has a SG of 4.2, hardness 6.0 to 6.5 and is non-magnetic; while ilmenite
SRU Sulphur Recovery Process
Table of ContentsTHE Sulfur Recovery FLOWSHEETCRUSHINGGRINDINGSULFUR FLOTATIONTHICKENING AND FILTRATIONSTORAGEElemental Sulphur Flotation PlantElemental Sulphur Market SpecificationsProduction ProblemsReagent Combinations During the past few years the requirements of manufacturers have increased to the extent that demand for sulphur has almost doubled. New uses, too, are continually being discovered; all of which has thrown more and more burden on Gulf Coast producers. It is
Processing Spodumene by Froth Flotation for Lithium Extraction
Table of ContentsThe Lithium Ore FlowsheetCrushingGrinding and ClassificationConditioningLithium Ore (Spodumene) FlotationRoughing and CleaningFinal CleaningFiltering-DryingLithium Sector ReportSpodumene ExtractionSpodumene Market SpecificationsProduction ProblemsReagent Combination Spodumene theoretically contains 8.03% Li2O and therefore the production of this mineral is greatly increasing because of the expanded use of lithium in the manufacture of high temperature insoluble lubricants, ceramics, pyrotechnics, non-ferrous welding fluxes, air purifying agents, and hydrogen
Silica Sand Processing & Sand Washing Plant Equipment
Table of ContentsThe Silica Sand FlowsheetSANDSTONE DEPOSITSOPEN SAND PIT (Dry)OPEN SAND PIT (Wet)PRIMARY CLASSIFICATIONATTRITION SCRUBBINGSECONDARY CLASSIFICATIONCONDITIONING AND FLOTATIONFINAL DESLIMINGDRYING AND DRY GRINDINGSummary of the Silica Sand Processing Plant EquipmentA Flowsheet for Beneficiation of Silica SandSand Washing and DeslimingConditioningFlotation ReagentsFlotationHandling of Clean SandLaboratory Test ResultsSilica Sand Washing ProcessMarket SpecificationsProduction ProblemsReagent Combinations Silica sand low in iron is much in demand for glass, ceramic and pottery
Recycling Sand from Foundry Casting Molds
The flowsheet shown in this study is particularly adapted to the requirements of the average foundry to reclaim foundry sand for re-use. Any foundry whose new sand delivered costs is too high should seriously consider reclamation with the flowsheet as illustrated. This reclaimed sand is usually equal to, or better than the original sand. Foundry sand once used must be
Pyrite Tailings Recovery by Flotation
Table of ContentsThe Pyrite Tailings Flotation Circuit FlowsheetFINE TAILINGSCOARSE TAILINGSCONDITIONINGFLOTATIONTHICKENING AND FILTERINGLABORATORY TESTS Pyrite has long been used as a source of sulphur, and its recovery as a by-product from the flotation of certain base metal ores is a well established practice. Large tonnages of mill tailings which have accumulated as a result of various milling operations frequently contain significant
Potash Flotation Process
Table of ContentsThe potash processing flowsheetCommon Salt or Halite: NaClCrushing SectionScrubbing and DeslimingGrinding and ClassificationConditioningPotash FlotationThickening, Filtering and Brine RecoveryPumping of ProductsSamplingSummary of the potash process flow diagramPotash BeneficiationPotash Market SpecificationsProduction ProblemsReagents Potash occurs in soft deposits generally associated with sodium chloride and varying amounts of clay slime, which because of its colloidal character, complicates the beneficiation process. Potash ores generally contain
Phosphate Beneficiation Process
Table of ContentsThe Phosphate Beneficiation FlowsheetPhosphate Ore MiningWashing and Screening Phosphate RockClassification and Desliming PhosphateAgglomerate Separation of PhosphatePhosphate Conditioning and Fatty Acid FlotationSilica FlotationRecovery of PhosphateSolution of the Phosphate ProblemThe Flowsheet for Phosphate Beneficiation CRUSHING AND STORAGESCRUBBING AND SCREENINGROD MILLINGCLASSIFICATIONPhosphate FILTRATIONTHICKENING PhosphateWATER REQUIREMENTSPhosphate BeneficiationProduction ProblemsReagent Combinations Large scale mining and processing of phosphate is essential for operating at a profit. In the Florida area, Phosphate Beneficiation by
Perlite Beneficiation Process
Perlite, as required for the light weight aggregate industry, must be closely graded and the amount of minus 100 and minus 200 mesh perlite must be closely controlled. Perlite, being very brittle and friable, demands precautions throughout the flowsheet to eliminate excessive fines. Perlite Process Flowsheet The flowsheet illustrated is applicable for various tonnages from 50 to 400 tons per
Extraction Process of Pegmatite Minerals
Table of ContentsThe Process Extraction FlowsheetCrushing SectionSizing SectionGravity ConcentrationSelective Concentration SectionSummary of the Pegmatite Concentration Process Strategic Minerals, such as uraninite, garnet, monazite, zircon, cassiterite, columbite, magnetite, are often found closely associated with pegmatic orebodies. Concentration of these minerals is frequently complicated by hardness of the ore, presence of the clayey materials, and the fact that mineral sizes range from micron
Nonmetallic Minerals Process Method
The following paper deals with the problems that have arisen in the application of the flotation process to the beneficiation of non-metallic ores by flotation. The most important of these ores are listed and the commercial specifications of the desired products are given. The problems caused by the complexity of many of the raw ore deposits are discussed and illustrations
Molybdenum Ore Processing by Flotation
Table of ContentsThe Molybdenum Process FlowsheetGrindingCoarse Flotation CircuitRegrind CircuitFine Flotation CircuitConcentrate TreatmentTailingsFlotation of Molybdenite from CopperHow to separate copper & molybdenum; the problemThe Copper/Moly Separation FlowsheetMOLYBDENITE FLOTATIONSELECTIVE FLOTATION CLEANINGREGRINDING AND FINAL CLEANINGMOLYBDENUM LABORATORY AND PILOT PLANT TESTINGMolybdenum Geology This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue.
Design Flotation Plant
Table of ContentsDesign Study for 400-Ton per Day Flotation PlantProcess FLOWSHEETConcentrator MILL SITEMILL DESIGN AND CONSTRUCTION FEATURESDesign Study for 75-TPD Flotation MillPlant FlowsheetMill SiteMill DesignDesign Study for 500-Ton/Day Flotation MillProcess FlowsheetMill DesignCrushing—Two Stage Open CircuitGrinding—Two Stage Rod and Ball MillingBulk or Selective FlotationThickening and FilteringBasic Consideration Is Continuous OperationAvailability of Similar Mill Plans Design Study for 400-Ton per Day Flotation
Tin Beneficiation Process
The scarcity of both skilled construction and operating labor in the region, caused the customer to under-score the terms “fool-proof” and “simplicity” in the instructions for the design of this 200 ton tin Beneficiation process plant. Flowsheet The tin process flowsheet was developed by laboratory tests which clearly indicated the method of treatment to give high recovery with simplicity of