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A study on the effect of active pyrite on flotation of ...

Flotation of copper sulphides is a traditional technique for processing the sulphide copper. The presence of pyrite in copper concentrates (especially the pyrite particles that are surrounded with the chalcopyrite) is the most important problem of copper ore processing that leads to a .

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NIOSHTIC-2 Publications Search - 10003453 - .

Investigations were conducted to characterize the surface chemical and flotation properties of molybdenite in aqueous environments typical of those that exist in the copper circuits of plants that process prophyry copper ores.

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Model Discrimination in the Flotation of a .

01.05.1985· Immediate online access to all issues from 2019. Subscription will auto renew annually.

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copper molybdenum flotation process

There are several flow sheets (listed in Fig. 1a and b) used in the flotation recovery of copper and molybdenum from their porphyry sulfide ores. Fig. 1a is a typical flow sheet that consists of two stages (Raghavan and Hsu 1984 Bulatovic 2007 Liu et al. 2011).The first stage commonly known as the copper circuit produces a bulk copper sulfide–molybdenum sulfide concentrate.

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Limits of the CIL circuit in copper–gold plants ...

01.01.2014· Despite the high copper flotation recovery, normally more than 90% (Zheng and Manton, 2010), the CIL circuit of copper flotation tailings is not always efficient. It is not clear whether iron sulphide minerals or the small amount of copper minerals remaining in copper flotation tailings affects the leaching process. The focus of this study is ...

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INTERPRETATION OF FLOTATION DATA FOR THE DESIGN OF .

characteristics, Hellyer's sequential flotation circuit versus Cadia's "simple" copper/gold flotation circuit. They have a common theme in that pyrite forms the principal floatable concentrate diluent. Hellyer ore contains finely disseminated chalcopyrite, sphalerite, galena, and tetrahedrite. The flotation plant design was based on extensive benchscale testwork (including locked cycle ...

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Copper Sulfide Flotation - Mineral Processing & .

13.04.2016· Copper Sulfide Flotation Circuit Beneficiation of Copper Sulfide by Flotation Copper, due to the present world demand and price, is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are

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Copper Sulfide Flotation - Mineral Processing & .

Copper Sulfide Flotation Circuit Beneficiation of Copper Sulfide by Flotation Copper, due to the present world demand and price, is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are

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Optimization of reagent dosages for copper flotation using ...

flotation of porphyry copper and copper molybdenum ores[6]. In copper flotation plants, an increase of 1%−2% in recovery and/or grade is economically remarkable. In this work, reagent optimization is a very important issue, and much time and attention are spent on the optimization of flotation reagents in order to provide the most effective separation and concentration results. The ...

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Flotation of Copper Sulfide Ores - PDF Free .

Figure 12.3 Typical porphyry copper ore grinding circuit. Else_HFRC-Bulatovic_Ch012.qxd 1/3/2007 1:10 PM Page 246 246 12. Flotation of Copper Sulfide Ores Figure 12.4 Flowsheet used for the treatment of hard ore with a work index of 14–18. Table 12.4 Grinding circuit data from selected plants. Concentrator El Salvador, Chile Chuquicamata, Chile El Teniente, Chile Colon Sewell Disputada ...

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Model Discrimination in the Flotation of a .

Numerous flotation models have been proposed in the literature. Thirteen of these have been applied to batch flotation data and evaluated with respect to one another using statistical techniques. Flotation tests were carried out on samples of a US porphyry copper ore (Pinto Valley, AZ). The ore was tested using various collector and frother systems to produce different time-recovery profiles.

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HSC Sim® simulation model of the Assarel copper flotation ...

0.32% Cu. The flotation process is performed in two stages – bulk sulfide flotation and selective copper flotation (Figure 1). The purpose of the bulk circuit is to assure high recovery of sulfide minerals. Rejection of gangue minerals is maintained at maximum possible level. All .

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Copper Flotation - Mineral Processing & Metallurgy

Metallurgical ContentA Copper Flotation FlowsheetCOPPER MININGCRUSHING COPPER ORECOPPER ORE STORAGEGRINDING COPPER ORECOPPER FLOTATION CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Flotation Process SummaryFlotation of Copper Ores Although basic porphyry copper flotation and metallurgy has remained virtually the .

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A study on the effect of active pyrite on flotation of ...

A study on the effect of active pyrite on flotation of porphyry copper ores Nahid Molaei 1, Fatemeh Sadat Hoseinian 2, Bahram Rezai 2 1 Department of Mining Engineering, Research and Science Campus, Islamic Azad University, Poonak, Hesarak Tehran, Iran 2 Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran Corresponding author: .

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IMPROVEMENT OF PORPHYRY COPPER FLOTATION EFFICIENCY .

The study of flotation kinetics with auxiliary collectors DC-80 and DMIPEC in the bulk and selective circuits reveals potential reduction in flotation time by 35–40% as against the standard regime of the processing plant at the same technological data. Key words: porphyry copper, molybdenite, chalcopyrite, combination of collec-

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Flotation Tailings Processing Copper

Flotation Tailings Processing Copper Anticotrappeto. Copper sulfide flotation circuit cleaner flotation tailings are returned to the head of the rougher flotation circuit for retreatment in many milling circuits, particularly if coarse grinding is used, the cleaner tailings will contain middlings or mineral with attached particles of gangue summary of porphyry copper sulfide processing.

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Depression of pyrite in porphyry copper flotation

Depression of pyrite in porphyry copper flotation Ian Wark Research Institute Australian Research Council Special Research Centre For Particle and Material Interfaces

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Bench and Pilot Plant Programs for Flotation Circuit Design

The compositing for a porphyry copper deposit metallurgical testwork program will be distinct to that of a massive sulphide ore or that of a vein hosted Au/Ag ore. Sample selection will take place for both grinding and flotation testwork at the same time and will follow similar logic. Relevant criteria include: • Rock type • Alteration type • Mineralogy and/or head grade to assess ...

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Copper Flotation Circuit Flow Diagram

A Copper Flotation Flowsheet Because the copper in this type of ore usually assays only plus or minus 1 copper the porphyry copper operations must be relatively large in order to be commercial but a typical flow sheet is illustrated in circuit No 12 Fig 60. View All. Flow Diagram Of The Flotation Process. Flow Diagram Of The Flotation Process Coal flotation process diagram in india copper ...

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Mineralogical and Metallurgical Examination of ...

Mineral Flotation in the Ok Tedi Circuit L S Pang urn 1, D W Lauder2, E V Manlapig 1, I R Mackinnon3 and J W Glatthaar4 ABSTRACT The Ok Tedi copper orebody consists of porphyry and skarn orebodies. The skarn orebodies, identified by different mineralogies, are the source o~ high intermittent fluorine levels in the mill concentrates. This paper

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A novel approach for preferential flotation .

01.10.2012· 1. Introduction. Approximately 50% of the world's molybdenum production comes from Cu–Mo ore as a by-product (Bulatovic, 2007).The flotation recovery of molybdenite from porphyry Cu–Mo ore is consistently lower than that of the copper sulfides (Bulatovic et al., 1998, Bulatovic, 2007, Triffett et al., 2008).In 2004, the price of molybdenum increased near 10-fold resulting in a renewed ...

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INVESTIGATION OF EFFECTIVE PARAMETERS FOR MOLYBDENITE ...

Flotation of porphyry copper–molybdenum ores (theoretical considerations) Molybdenite-bearing copper sulphide ores are typically beneficiated by froth flotation techniques in two stages.

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Copper Flotation Circuit Flow Diagram

A Copper Flotation Flowsheet Because the copper in this type of ore usually assays only plus or minus 1 copper the porphyry copper operations must be relatively large in order to be commercial but a typical flow sheet is illustrated in circuit No 12 Fig 60.

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Size dependent gold deportment in the products of copper ...

Commercial porphyry copper ores usually contain copper grades between 0.5% and 2%1. Minor amounts of gold are often present in these orebodies2. The concentration of gold in the majority of large-scale copper/gold ores is low, typically around 1-2 g/t3,4. Flotation is the principal method of pre-concentration for copper and gold5,6. Thus, porphyry copper ore concentrators are designed with .

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INTERPRETATION OF FLOTATION DATA FOR THE DESIGN OF .

characteristics, Hellyer's sequential flotation circuit versus Cadia's "simple" copper/gold flotation circuit. They have a common theme in that pyrite forms the principal floatable concentrate diluent. Hellyer ore contains finely disseminated chalcopyrite, sphalerite, galena, and tetrahedrite. The flotation plant design was based on extensive benchscale testwork (including locked cycle ...

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MEI Blog: Challenges in copper flotation

17.09.2011· Until 1907 practically all the copper mined in the USA was from underground vein deposits, averaging 2.5% Cu, whereas flotation allowed the mining of porphyry deposits of only 0.6% grade. Nevertheless, the flotation of copper ores still presents challenges to the minerals engineer.

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Copper Iron Flotation - reitkostuem-design.de

Copper Flotation Mineral Processing Metallurgy. 2020-5-18Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs.

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Improvement of porphyry copper flotation .

The article presents the research findings on potential enhancement of porphyry copper flotation efficiency at Erdenet processing plant, Mongolia, by means of improvement of reagent regime with addition of auxiliary collectors from tertiary acetylene alcohols class. Reagents DC-80 (2-methyl-3-butyn-2-ol) (CH3)2C(OH)–C≡ CH and DMIPEC (2,5-dimethylhexen-1-in-3-ol-5) .

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A study on the effect of active pyrite on flotation of ...

A study on the effect of active pyrite on flotation of porphyry copper ores Nahid Molaei 1, Fatemeh Sadat Hoseinian 2, Bahram Rezai 2 1 Department of Mining Engineering, Research and Science Campus, Islamic Azad University, Poonak, Hesarak Tehran, Iran 2 Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran Corresponding author: .

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Copper Sulfide Flotation - Mineral Processing & .

Copper Sulfide Flotation Circuit Beneficiation of Copper Sulfide by Flotation Copper, due to the present world demand and price, is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are

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