copper flotation porphyry

Geology of Porphyry Copper Deposits

 · Porphyry copper deposits ppt. Here let''s understand the geology of porphyries and iron oxide copper gold deposits or IOCG as they are known. These are somewhat the giants of the ore deposits world. As a mining interested learner, the geology of porphyry copper deposits is vital to your education.. Now in the first Exploration Geology Course I discussed how because our current mining ...

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fine quarry secondary copper ore flotation cell

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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MEI''s Barry Wills: Challenges in copper flotation

 · Flotation of difficult-to-float copper porphyry ores indicates that the primary reasons for the problems are mineralogical diversity, metallurgical factors, and process limitations. A detailed analysis of these factors indicates that, most often, difficulties in the flotation of copper porphyry ores arise due to mineralogy and metallurgy ...

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(PDF) CHARACTERISTICS OF MODERN COPPER FLOTATION …

As discussed previously, porphyry copper deposits tend to be processed through high tonnage flotation plants, often with several parallel banks of cells at each stage of flotation. There is a general move towards larger cells along with the increased tonnage being processed in modern copper plants.

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Estimated Water Requirements for the Conventional ...

3. Banks of rougher cells in the flotation circuit of the Sierrita copper porphyry mine, Arizona ..... 11 4. Photograph of the tailings storage facility for the Sierrita copper porphyry mine in Arizona..... 11 Tables 1. Engineering and operational parameters for a conventional copper flotation circuit with

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Exploration Methods Porphyry Copper

What the best geophysical survey method for exploring and discovering a porphyry copper deposit. After doing an extensive literature survey at the best University library I find these exploration methods: The radiometric survey its important to discover the alteration ( K U T). IP survey can used for the sulfide mapping not for porphyry copper.

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Copper mining in the United States

The entire output of these mines was low-grade milling ore. The open-pit mining of porphyry copper deposits was adopted worldwide. In the 1910s and 1920s, copper mills adopted the froth flotation method, which had been developed in Australia.

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Exploration of Porphyry Copper Deposits

 · So how do we explore for Porphyry Copper Deposits which are completely covered by barren younger rocks? Well let''s back up a bit, we know that porphyries form under large subduction related volcanoes and that most of these are located under the ring of fire around the subducting pacific plate another fertile subduction zone occurs in Balkans, Turkey, Iran and Pakistan.

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Increasing the grind size for effective liberation and ...

breakage leading to improved liberation and flotation. 2 Materials and methods 2.1 Ore sample The ore sample used in this investigation was a porphyry copper ore from Chile. The ore was supplied as SAG mill feed and subsequently screened into a -53.0+9.5mm size class. Two representative samples of

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Improving copper flotation recovery from a refractory ...

 · In this paper, N-propyl-N-ethoxycarbonyl thiourea (PECTU) collector was investigated to concentrate copper minerals from a refractory copper porphyry ore through bench-scale and industrial flotation tests.The flotation results indicated that PECTU had strongly collecting power for copper sulfide minerals and excellent selectivity against iron sulfide minerals under moderately alkaline …

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Optimization of a Copper/Molybdenum Flotation Circuit by ...

comes from copper sulfide ores, and, at lower recoveries from porphyry copper ores (4). However, since 2004 molybdenum has increased its market price nearly "10-fold resulting in a renewed emphasis on production of this metal, including efforts to optimie its flotation recovery" (4). Year

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Porphyry copper deposit

Porphyry copper deposits are copper ore bodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself. Predating or associated with those fluids are vertical dikes of porphyritic intrusive rocks from which this deposit type derives its name. In later stages, circulating meteoric fluids may interact with the magmatic ...

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INVESTIGATION OF EFFECTIVE PARAMETERS FOR …

porphyry copper flotation is generally controlled by pH. The presence of clay in the ore is the main reason for unstable froths and lowered frothing power. It has been shown that destabilization of frother takes place in the presence of ultrafine particles (Srdjan 2007). It is a common practice that during flotation of

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Factors affecting the flotation recovery of molybdenite ...

TY - JOUR. T1 - Factors affecting the flotation recovery of molybdenite from porphyry copper ores. AU - Raghavan, S. AU - Hsu, Land L. N1 - Funding Information: The authors gratefullya cknowledgeth e financials upporto f the Office of Surface Mining, U.S. Department of Interior, in the form of Grant #G5105011S. incerethanks are extendedt o Dr. M.C. Kuhn of Mountain StatesM ineral Enterprisesf ...

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Porphyry Deposits | SpringerLink

Abstract. The most well known among the porphyry-type deposits are the porphyry copper deposits. Originally, the term porphyry copper was applied to stockwork copper mineralization in felsic, porphyritic igneous intrusions. With the development of large-scale open-pit mining methods and froth flotation techniques for efficient beneficiation of low-grade ores, the meaning of the term has been ...

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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 improve-ment of rea gent re gime with addition of auxiliary collectors from tertiary acetylene alcohols …

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Major Mines & Projects | Copper Mountain Expansion Project

 · The Copper Mountain Mineral deposits are classified as alkalic porphyry copper-gold deposits. The term recognizes the alkaline nature of the intrusive rocks associated with mineralization, where silica content is low relative to the alkali metals, sodium, and potassium. ... A new regrind mill will be constructed as part of the flotation ...

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Model Discrimination in the Flotation of a Porphyry Copper ...

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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Types of Copper Deposits in the World | An Investor''s ...

 · Porphyry copper mineral deposits are usually massive, with extraction taking place by open-pit mining. ... I believe that in the parlance of the copper industry, froth flotation is a means of ...

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Mining Industry | Copper Sulfide Ore and Flotation Process ...

 · Chalcocite exists in the many large scale porphyry copper deposits at home and abroad. The chalcocite is more oxidized than the chalcopyrite, copper ions enter the slurry, complicating the flotation process and increasing the difficulty of separating.

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porphyry copper flotation circuit

 · A novel approach for preferential flotation recovery of. Oct 01, 2012· 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 ...

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Model Discrimination in the Flotation of a Porphyry Copper ...

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

Abstract: Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical

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ISOLATION AND CHARACTERIZATION OF LOST COPPER AND ...

i i isolation and characterization of lost copper and molybdenum particles in the flotation tailings . of kennecott copper porphyry ores . by . tsend-ayush tserendavga

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Modified reagent mode in porphyry copper-molybdenum ore ...

Test data on the selective reagent modes at bulk flotation cycle and modified carboxymethylcellulose (CMC) at a selection cycle for the bulk copper-molybdenum concentrate. The selected reagent mode at a bulk flotation cycle with industrial kerosene and Beraflot as collectors and OPSB as a frother made it possible to recover 87 % of copper and 82 % of molybdenum into a rough bulk concentrate.

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Preliminary Model of Porphyry Copper Deposits

Porphyry copper deposits result from the complex interactions and feedbacks of many processes. Owing to the complexity, a succinct definition that includes the essential attributes of this deposit class is elusive. Consequently, this descriptive model uses a working definition of a porphyry copper deposit.

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EFFECT OF PARTICLE SIZE AND LIBERATION ON …

Flotation plant "Veliki Krivelj" commi-ssioned in 1983, with selective rougher flotation of copper minerals from pyrite and gangue. In the rougher flotation stage three parallel lines of Denver DR 500 flotation cells were installed, and each row consists of 21 cells in order 5+4+4+4+4. The rougher flotation …

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AN INVESTIGATION OF COPPER RECOVERY FROM A …

The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime. The processing of the test ore was problematic due to a mineral assemblage that caused prevalent slime generation.

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Improving copper flotation recovery from a refractory ...

 · Lime is commonly used as a pH regulator and depressant against iron minerals during the flotation recovery of copper minerals from copper porphyry sulfide ore. It can also depress copper oxide, secondary copper sulfide or gold minerals ( Allan and Woodcock, 2001, …

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Active carbons for selective flotation of primary gold ...

The results of a study on the flotation of gold-copper-porphyry ore are presented. The quality of the obtained concentrates is confirmed by the efficiency of using activated carbon to reduce the excess of reagents accumulating in the collective concentrates. Detailed studies of concentrates of copper selection using scanning electron microscopy revealed the presence of carbon in their composition.

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Effect of O-isobutyl-N-ethyl thionocarbamates on flotation ...

 · For each test, 1000 g of the porphyry copper ore was wet ground using a ball mill to 65 wt% passing 200 mesh. The slurry was transferred into the flotation cell while agitating at approximately 2000 rpm for 2 min. Flotation tests were performed in a 3L XFD Ⅳ flotation cell. The flotation flowsheet and corresponding conditions are shown in Fig. 2.

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Chapter 6 Copper Production Technology

Copper Production Technology The last boomin technological innovation for the copper industry occurred in the first two dec-ades of this century, whenopen pit mining, flo- tation concentration,and the reverberatory smelter were adapted to porphyry copper ores. With the exception of leaching-solvent extrac-tion-electrowinning, the basic methods ...

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Isolation and characterization of lost copper and ...

The importance of flotation separation has long been, and continues to be, an important technology for the mining industry, especially to metallurgical engineers. However, the flotation process is quite complex and expensive, in addition to being influenced by many variables. Understanding the variables affecting flotation efficiency and how valuable minerals are lost to the tailings gives ...

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A Review of Recent Advances in Depression Techniques for ...

DOI: 10.3390/MET10091269 Corpus ID: 224919332. A Review of Recent Advances in Depression Techniques for Flotation Separation of Cu–Mo Sulfides in Porphyry Copper Deposits

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

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 the goal of maximizing copper recovery and grade; however, gold recovery as a by-product is also economically important7.

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INVESTIGATION OF THE ELECTROCHEMICAL FACTORS …

porphyry copper sulphide ores. Therefore, this paper was aimed to study electrochemical behavior inside ball mills and influence of milling environment (pulp chemistry) on flotation process. This study was carried out on the Sarcheshmeh porphyry copper sulphide ore. The Sarcheshmeh copper …

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(PDF) Effects of aluminosilicate minerals on copper ...

In many porphyry copper ores, various alumino- coating is the result of electrostatic forces. Other research (Sun, silicate minerals are present, such as kaolinite, chlorite, illite, and 1943; Fuerstenau, 1958) has confirmed that the clay coating on montmorillonite.

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