• Froth flotationWikipedia

    Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing paper recycling and waste-water treatment industries. Historically this was first used in the mining industry where it was one of the great enabling technologies of the 20th century.

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  • SUPSuperior s Mining Strategy

    • Variable Bond Work Indices (BWi) of the ore ranging from 11.0 to 18.4kWh/tonne but more consistently between 11.0-14.0kWh/tonne • Primary grinding circuit target grind size is p80 74 microns (200 mesh) • Copper regrind product size is p80 20-30 microns •

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  • Sequential flotation of sulfide oresAnschutz Mining

    Jul 17 1984 · A sequential flotation process for the recovery of high-grade concentrates of copper lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration and the conditioned pulp subjected to sequential flotation with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.

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  • Recent Process Developments at the Phu Kham Copper-Gold

    The major challenges to the copper-gold flotation process are a wide size distribution of chalcopyrite mineralisation and poor primary grind liberation a high pyrite content in skarn ore requiring aggressive pyrite depression conditions clay-rich gangue and non-sulfide copper mineralisation in weathered zones and a significant association of

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  • Sequential flotation of sulfide oresAnschutz Mining

    Jul 17 1984 · A sequential flotation process for the recovery of high-grade concentrates of copper lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration and the conditioned pulp subjected to sequential flotation with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.

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  • The Effect of Regrinding Chemistry and Particle Breakage

    The Effect of Regrinding Chemistry and Particle Breakage Mechanisms on Subsequent Cleaner Flotation rougher flotation after primary grinding it is usually more challenging to achieve a satisfactory 4. Effect of particle breakage mechanisms on subsequent flotation. In this study it was found that copper activation of pyrite and its

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  • The Influence of Pyrite on the Pulp Chemistry and Copper

    The ores were ground under standard conditions using forged steel grinding media in the Magotteaux Mill® to determine the impact of increasing pyrite feed grade on the pulp chemistry of the system and subsequent rougher flotation response.

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  • Increasing the grind size for effective liberation and

    However the ability to exploit microwave-induced fracture by improving flotation recovery and grade and/or increasing the primary grind size to effect liberation has significant potential benefits in terms of increasing plant throughput and metal production while reducing metal specific energy consumption even without significant reductions in ore competency.

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  • Copper Ore Crushing Grinding Flotation

    Crushing and Grinding You will note that the Oracle Ridge project has utilized a two-stage crushing circuit with a double acting jaw crusher and cone crusher. In order to utilize this system the jaw crusher is oversized to produce all -5 material for the cone mill with a screen in closed circuit. Normally a three-stage crushing circuit would have been more conventional but with the type of

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  • Coarse PartiCle Flotation

    Primary Grinding Primary Cyclones HydroFloat CrossFlow Classifier Cleaner Mechanical Rougher/Scavenger Regrind Mill Regrind Classifiers Fine Tails Final Conc. Secondary Cyclones Traditional Copper Sulfide Circuit Future Circuit with the HydroFloat™ Separator A traditional circuit requires grinding 100 of the ore to sufficient liberation

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  • Copper Sulfide FlotationMineral Processing Metallurgy

    Copper Ore Grinding. Porphyry copper ores usually are medium to medium hard and require grinding to about 65 mesh to economically liberate the copper minerals from the siliceous gangue. Sometimes a regrinding circuit is advantageous on the rougher concentrate and on the scavenger concentrate.

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  • (PDF) A Review of the Flotation of Copper Minerals

    The increasing complexity of ore deposits declining ore grades and higher global demand for copper has resulted in increased ore processing by flotation plants around the world.

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  • APPENDIX 2 CAPITAL AND OPERATING COST ESTIMATE GR

    Ore will be reclaimed from the fine ore bin by a belt feeder and delivered to the single stage 3.4 m diameter (inside shell) x 5.2long (effective grinding length) overflow ball mill that will be fitted with a 900kW motor. The ball mill will be in closed circuit with 250 mm diameter cyclones. The ball mill will grind the ore to 80 passing 75µm.

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  • Estimated Water Requirements for the Conventional

    Estimated Water Requirements for the Conventional Flotation of Copper Ores . By Donald I. Bleiwas . Introduction . This report provides a perspective on the amount of water used by a conventional copper flotation plant including the makeup water required to compensate for water losses. Much of the global

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  • PGM Ore Processing at Impala s UG-2 Concentrator

    a relatively coarse primary grind particularly if the grind is operated in a more attritioning style. The remaining PGM locked in silicates are difficult to liberate requiring finer liberation in a secondary milling step and longer ensuing rougher and cleaner flotation times. It is in large part the nature of the PGM

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  • ANTARES REPORTS HAQUIRA EAST SULPHIDE MINERAL

    primary copper sulphide-bearing drill core from the Haquira East mineralized zone at the Haquira copper sample preparation and characterization mineralogical examination Bond s ball-mill work index determination grind studies and rougher flotation recovery tests. The highlights of the study are the following for porphyry copper ores.

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  • copper ore content wear on flotation cell plant

    The Sentinel processing facility houses two milling trains each comprising a semiautogenous grinding (SAG) mill a ball mill and two parallel banks of rougher flotation cells. The fine ore material undergoes a conventional sulphide ore flotation circuit for the production of copper concentrate. Get Price

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  • Ore characterization process mineralogy and lab

    1. Changes in mining and processing. The dramatically increasing cost in mining owing to rising water power reagent and steel prices less favorable ore characteristics lesser oxide ores and dominance of primary sulfide feeds coupled with economic aspects of sustainability require a large re-focus of operations on process mineralogy.

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  • Bureau Veritas Minerals

    primary grind on the mineral liberations is shown in Figure 2C. The quality of the copper and gold bearing particles are shown in Figure 3A and 3B. The limiting grade recovery curves (See Figure 3C) suggest that a rougher concentrate assaying 5 to 10 percent copper at the around 90 percent copper recovery can be theoretically achieved.

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  • DeGrussa Processing Plant overviewAusIMM Bulletin

    The primary ore at DeGrussa is a volcanic-hosted massive sulphide (VHMS) deposit which is a high grade copper deposit with payable gold and silver. The dominant sulphide minerals in the primary ore body are pyrite (35 per cent) chalcopyrite (14 per cent)

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  • COPPER Copper productionTU Delft

    Copper production About 80 of primary copper production comes from low-grade or poor sulfide ores. After enrichment steps the copper concentrates are usually treated by pyrometallurgical methods. Generally copper extraction follows the sequence (see Figure below) 1. Beneficiation by froth flotation of ore to give copper concentrate

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  • Increasing the grind size for effective liberation and

    Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment A.R. Batchelor D.A. Jones S. Plint S.W. Kingman Faculty of Engineering The University of Nottingham University Park Nottingham NG7 2RD United Kingdom Corresponding author.

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  • ore input primary grind copper rougherAlladvice

    Most copper facilities use a combination of rod and ball mills to grind sulfide ore (Figures 16a and b). Rod mills use free steel rods in the rotating drum to grind the ore. Get Price Effect of Primary Grind Size on Copper Flotation Rougher

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  • The separation of chalcopyrite and chalcocite from pyrite

    In the rougher flotation prior to regrinding high chalcopyrite and chalcocite recovery were obtained in conjunction with high pyrite flotation recovery due to the activation of pyrite by copper ions during primary grinding. The rougher flotation concentrate was reground in a rod mill before cleaner flotation.

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  • CANATUAN CU/ZN FLOTATION METALLURGY

    and commissioned in November 2008. During the initial stages of sulphide operation high copper (Cu)-low zinc (Zn) ore was fed to the plant. Marketable copper concentrate at 91-95 recovery was produced utilizing a high-pH bulk sulphide rougher flotation and 2 cleaning stages. Because of increased levels of

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  • Laboratory Testing for Sulfide Flotation Process Development

    Jan 01 2016 · These ore variability programs often test hundreds of samples in standardized batch rougher and cleaner tests to ensure that the orebody is well understood.This article describes the development of a copper-molybdenum flotation process but the concepts discussed can be applied to most sulfide flotation systems and many industrial minerals

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  • (PDF) Processing of Magnetite Iron Ores–Comparing Grinding

    In this work the purpose was to study the impact of variations in feed ore properties on the performance of a primary autogenous grinding circuit by ore characterisation and simulation.

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