Blogs
Mica Recycling from Scrap
The concentration of mica is an unusual problem due to sheet-like, flaky structure of the minerals. Premium grades of mica demand a sufficiently high price that the ore can be hand-sorted and trimmed. However, the “punch” and “scrap” mica does not demand such handsome prices, so a method of concentration must be used. This system must have high capacity and
Recycling Gold from Scrap Metal: Process and Equipment
Table of ContentsProcess and Equipment for the Recovery Precious MetalsCrushing Scrap MetalGrinding and Sizing Scrap MetalGold Flotation from Metal ScrapsMetallurgical ResultsRecovering Gold from Industrial WasteHow is Gold Recycled from ElectronicsExtract Gold and Valuable Metals from Scrap Scrap Metal Recycling Equipment and FlowsheetCrushing eScrap for GoldGrinding and SizingRecover Gold by JiggingClassification and Tabling for GoldThickening, Filtering and Water ReclamationPRINTED CIRCUIT BOARD RECYCLING METHODS During the manufacture of fiberglass the
Cross Belt Sample Cutter
Example Cross Belt Samplers Supplier CROSS-BELT SAMPLER FOR MATERIALS CONVEYED ON A BELT CONVEYOR
Weights of Minerals and Materials
Source: This article is a reproduction of an excerpt of “In the Public Domain” documents held in 911Metallurgy Corp’s private library.
How to Process Copper Lead Zinc Ore with Gold and Silver by Flotation
Table of ContentsThe Lead Zinc Copper Flotation and Separation CircuitCrushing PlantGrinding CircuitFlotation PlantConcentrate Thickening and FilteringSamplingSummary The flowsheet in this study was designed to treat 500 tons per day of a complex base metal ore containing gold and silver values. The presence of free gold offers opportunity to recover these values in the grinding circuit so that the gold could be amalgamated,
Lead Zinc Sulfide Separation by Sequential Flotation
In the majority of the zinc operations, sphalerite (ZnS) is associated with galena and often sulfides of iron and copper. It is therefore essential to arrange the flowsheet not only for recovery of the valuable minerals, but also to selectively separate them into products acceptable to the smelters for ultimate conversion into metal. The flowsheet outlined above is typical for the
How to Process Low-Grade Lead Zinc Ore by Flotation
Table of ContentsLead and Zinc Pb-Zn Separation Process CircuitPrimary Washing and CrushingLead Ore Grinding CircuitLead Flotation and TablingRegrind CircuitZinc FlotationSUMMARYFlotation of Lead Ore The flowsheet above was designed to treat economically approximately 200 tons in 24 hours of a low-grade dump ore containing lead and zinc values as well as some silver in both sulphide and oxide form. Due to varying
Mercury Ore Processing
Table of ContentsA Mercury Ore Beneficiation Process FlowsheetCrushing CircuitMercury Ore Grinding SectionMercury Flotation SectionFiltrationSamplingFlotation of MercuryThe Mercury Ore Beneficiation by FlotationFlotation ReagentsAdvantages of Flotation for Mercury Processing The concentration of low grade cinnabar, HgS, with a specific gravity of 8.0-8.2 is effectively accomplished by gravity and flotation methods. Cinnabar ores of relatively high mercury content can be retorted directly to expel the sulphur
How to Process Oxidized Lead-Zinc Ore by Flotation
Table of ContentsThe FlowsheetCrushing SectionGRINDINGConditioning and FlotationThickening and FilteringSamplingORE TESTING LABORATORY The problem of treating oxidized lead-zinc ores for the production of high-grade lead zinc concentrates is a complex problem due to the nature of the ores and to the soft sliming characteristics of the lead and zinc minerals. The ore for treatment is a lead-zinc carbonate ore in a mixed
Manganese Ore Processing
Table of ContentsThe Manganese Ore Processing PlantCrushing and Sampling of Manganese RockConcentration—Gravity Methods of treating Manganese OreManganese Ore Concentration by FlotationMODERN MANGANESE PLANTManganese Ore Treatment SummaryRecovering Manganese using GravityThe Manganese Gravity Recovery Circuit FlowsheetOre Bin and FeederGrizzlyPrimary Manganese CrusherScreen No. 1Secondary Manganese CrusherBucket ElevatorScreen No. 2Pulp DistributorsSelective Mineral JigsScreen No. 3Harz Type JigsManganese Process Beneficiation SummaryManganese Concentration PlantManganese Market SpecificationsProduction ProblemsReagent Combinations The problem involved in
Oxide Lead Treatment & Extraction by Flotation & Gravity Methods
Table of ContentsLead Oxide Gravity Flotation Process FlowsheetWashing and Crushing Lead Oxide OreGrinding Pb Oxide OrePb Oxide Recovery by Flotation and Tabling (Shaker Table)Summary the Pb Oxide Beneficiation Process The problem of treating oxidized lead ores and many other oxides is complex due to the nature of the ore and to the soft, sliming characteristics of the lead oxides. These ores
How to Operate a Thickener
Table of ContentsThickening In CyanidationSlime LayersThickener SegregationFollow OrdersA Few Other PointsIsland FormationHow to Operate a Grinding CircuitHow to Operate a Flotation CircuitThickener Operating Instructions Running a thickener properly isn’t as easy as it looks. True enough, a thickener doesn’t make a racket like a ball mill, or spew out froth like a flotation machine, or bounce up and down like
How to Operate a Grinding Circuit
Table of ContentsControls for Grinding CircuitWhat to Look For in a grinding circuitWatch the Mill FeedLooking for TroubleHandling the Grinding CircuitUsing the TableStarting and StoppingSafetyHow to Operate a Flotation CircuitHow to Operate a Thickener How hard a ball mill operator has to work depends partly on himself, and partly on the kind of muck the mine sends over to the
How to Operate a Flotation Circuit
Table of ContentsHow the Flotation Process WorksLet’s have a word or two about those reagents.LimeFlotation CollectorsFrothersKnow Your Flotation MachineFlotation FrothTypes of Flotation MachineHow to Operate a Grinding CircuitHow to Operate a Thickener The main idea in collecting the information you’ll find in the following discussion was to help you, as a flotation machine operator. Regardless of how much or how little you
Open Stope Mining Method
Table of ContentsDISADVANTAGES OF THE SHRINKAGE STOPEADVANTAGES OF THE SPIES SYSTEM Speaking generally, in the Open Stope Mining Method, the jasper hanging walls of most of the deposits in the Iron River district dip at a steep angle and are exceedingly strong, standing without caving, even after mining has been continued for years and after large excavations have been made.
Signature Plot
General Procedure for IsaMil Signature Plot The relationship between product size and energy input remains constant during scale-up of IsaMill™ technology. As the diameter of a particle is halved, the surface area of its progeny is doubled. Within reasonable reduction ratios, the log of size plotted against the log of energy produces a straight line. This line can be extrapolated
Galena – Sphalerite Flotation & Separation Method
Table of ContentsPb Zn Flotation CircuitCrushing Pb Zn OreGRINDING Lead Zinc OreConditioning and Flotation of Pb and ZnThickening and Filtering of Zn and PbZn Pb Plant SamplingORE TESTING LABORATORYLead Zinc Flotation The problem of treating oxidized lead-zinc ores for the production of high-grade lead zinc flotation concentrates is a complex problem due to the nature of the ores and to the
Ball Mill & Rod Mill Design
Table of ContentsBall Mill Capacity VS Rod Mill CapacityRod Mill Capacity TableBall VS Rob Mill ConversionTypes of Mill DischargeBall Mill Trunnion and Mill Grate DischargePeripheral Grinding Mill DischargeLoad Capacity of Trunnion BearingsBall Mill & Rod Mill LinersGrinding Mill GearsGrinding Mill DrivesBall Mill Grinding CircuitGrinding Mill SpecificationsAll-Steel Shells and HeadsTrunnion Bearings of Grinding MillTypes of Mill Feed ChuteSteel Head Ball MillsSteel-Head Rod MillsQuotation on
Slurry Agitator Mixer & Flotation Conditioner
Table of ContentsTotally Enclosed Head MotionsAdjustable RakesOperationSUPER-AGITATOR AND CONDITIONERConditioner ConstructionStandpipeAeration ControlAir-lift AgitatorAGITATOR, (Open Gear Type) Center and Side Air-liftFLOTATION AGITATOR AND CONDITIONER (Open Type)FLOTATION AGITATOR AND CONDITIONERFlotation Conditioners Any Air-lift Agitator is readily convertible from one to another of three general types. Center Air-lift, Side Air-lift or combined Side and Center Air-lift. Each type has its own advantages and application. No
Mining Business Plan
Table of ContentsHow to Start a Mining Business for Gold & other MetalsMineral WealthBusiness ClimatePolitical StabilitySocial Development and Corporate Social ResponsibilityHealth IssuesEnvironmental DegradationOre RecoveryCorporate Social ResponsibilitySouthern Peru Gold Belt AnalysisNazca – Ocona Gold BeltPeru Small/Informal Mining SituationBeneficiation PlantsPlant Site LocationSmall Gold Plant DesignProcess TestingPlant FlowsheetPlant Cost EstimatePlant SecurityPlant Operating Cost EstimatePlant PersonnelFiscal RegimeIncome taxesRoyalty StructureProposed Development ScheduleManagement TeamCash Flow AnalysisSensitivity
Gold Leaching Equipment, Circuits & Process Plants
Table of ContentsLeaching Gold CircuitsTypical Gold Milling FlowsheetsGold Leaching Equipment LayoutEasy Gold Plant and Business Expansion In Leaching for Gold, there is often a tendency to overlook or minimize the importance of the small mine. The small mine of today may develop into the large mine of tomorrow. Under proper management and financing it has as good a chance of yielding
Flotation Cell Impeller Types
Table of ContentsReceded Disk ImpellersConical Disk ImpellersTypes of DrivesPaddleshaft DrivePositive Pulp Level ControlInterior Cell DesignImpeller AssemblyAdjustment of ImpellerSpecial Features Receded Disk Impellers Impellers for the “Sub-A” Flotation Machine are built in two types with corresponding wearing plates: Receded Disk Impellers and Diffuser Wearing Plates Conical Disk Impellers and Wearing Plates. The receded disk impellers and diffuser wearing plates have been proved
Flotation Machine
Table of Contents“Sub-A” in Corrosive CircuitsPrinciples of Operation of the “Sub-A”Pulp Flow and CirculationAeration and MixingSeparationConcentrationCoarse Material HandledNo Choke Ups or Lost TimeMiddling Returns Without PumpsPositive Cell ControlMetallurgical Advantages of a “Sub-A” Flotation CellSelectivityRecovery:Balanced Products AnalysisCapacitiesCapacity:Volume:Results:Construction of “Sub-A” Flotation CellsAll Steel ConstructionBearings and HousingStationary HoodLong Life Wearing PartsCircuit Flowsheet Flexibility The flotation process is widely used for treating metallic and non-metallic
Silver Lead Zinc Ore Processing Method using Flotation
Table of ContentsA Pb-Ag-Zn Separation Circuit Flowsheet #1Crushing SectionGrinding SectionSelective Flotation SectionPb and Zn Flotation ReagentsVisual SamplingPb and Zn Concentrate FiltrationSUMMARY of How to Separate Pb, Silver and Zinc Sulphides #1Silver, Lead & Zinc Flotation Circuit #2CRUSHING SECTIONGRINDING CIRCUITSELECTIVE FLOTATION of Silver Lead Zinc SulfidesTHICKENING AND FILTERINGSAMPLINGSUMMARYTypical Metallurgical Results Sulphide ore of lead and zinc containing considerable silver was submitted for