copper flotation summary

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12.3 Primary Copper Smelting

Pine oils, cresylic acid, and long-chain alcohols are used for the flotation of copper ores. The flotation concentrates are then dewatered by clarification and filtration, resulting in 10 to 15 percent water, 25 percent sulfur, 25 percent iron, and varying quantities of arsenic, antimony, bismuth, cadmium,

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The Extraction of Copper

Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated before refining (e.g., via froth flotation). Figure 1: Chalcopyrite extracted from Zacatecas, Mexico. from Rob Lavinsky (iRocks) under a CC-BY-SA-3.0 license.

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Chapter 21.3: Metallurgy

Settling and flotation have been used for thousands of years to separate particles of dense metals such as gold, using the technique known as panning, in which a sample of gravel or sand is swirled in water in a shallow metal pan.Because the density of gold (19.3 g/cm 3) is so much greater than that of most silicate minerals (about 2.5 g/cm …

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Chalcopyrite (Cu) Sphalerite (Zn) Separation by Flotation

Copper 3.78%. Sulphur 42.38%. Zinc 12.45%. Gold 0.01 oz/ton. Iron 32.84%. Silver 1.50 oz/ton. Insoluble 8.50%. In order to meet smelter requirements it is desired to produce at least a 20% copper concentrate with not over 8% zinc. The copper is present principally as chalcopyrite in extremely close association with both the sphalerite and pyrite.

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Flotation of Copper Ores

The first pneumatic-flotation plant in this country was erected by me in February 1914 for the National Copper Company at Mullan, Idaho, a description of which has already been published. The …

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The Challenges and Prospects of Recovering Fine Copper …

Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered …

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Handbook of Flotation Reagents: Chemistry, Theory and Practice

Handbook of Flotation Reagents: Chemistry, Theory and Practice is a condensed form of the fundamental knowledge of chemical reagents commonly used in flotation and is addressed to the researchers and plant metallurgists who employ these reagents. Consisting of three distinct parts: 1) provides detailed description of the chemistry used in …

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Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review

The most common copper sulfide flotation collectors are the hydrogen sulfide (-SH) class, also known as thiols, sulfhydryl group, or mercapto group (C-S). ... Table 5 presents a summary of the main findings reported to date. Table 5. Summary of studies of pyrite depressants in flotation stages. Reagent System Results and Discussion

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The Lead Zinc Copper Flotation and Separation Circuit

The flotation section consists of two 10-cell "Sub-A" Flotation Machines, one for the lead-copper and the other for the zinc. The launder arrangement and pulp flow is the same for both machines and …

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Flotation

The Inspiration Copper Co. uses flotation as the prime process, and its 800 tons per section is treated by 24 roughing-cells and 4 cleaners. In this case the cells are run in series, the primary cells treating the original feed and the secondary cells re-treating only the slime from the primary tailing after the sand has been removed. This ...

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(PDF) The Evaluation of a Copper Flotation Plant Performance by …

The influence of amount of flotation reagents on the efficiency of copper ore flotation in standard laboratory experiments was investigated. The aim of the study was to evaluate the effect of collector and frother amount on the selectivity of copper upgrading during flotation process of dolomite-shale ore from Fore-Sudetic Monocline area (Legnica-Glogow …

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A study of the flotation characteristics of a complex copper ore

copper ore comprising sulphide and oxide minerals with a view to achieving an optimal flotation performance in the treatment of the Kansanshi ore body. This required an in-depth analysis of the mineralogy of the feed as well as tailings samples after different flotation

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Copper Flotation

The flowsheet in this study illustrates the modern approach to porphyry copper treatment throughout the industry. Each plant will through necessity have somewhat different arrangements or methods for accomplishing the same thing and reliable ore test data are used in most every case …

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Separation efficiency improvement of a low grade copper …

The copper flotation circuits upgrade copper content by a factor of 80-160 times from feed to a saleable copper concentrate containing ... a summary of the mineral abundance in the copper concentrate streams from all trains. These data are taken from a recent (October 2010) quantification that was completed ...

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Energy and Environmental Profile of the U.S. Mining Industry 5

the flotation tank ("gangue") is partially dewatered and then discharged to tailing ponds for disposal. The concentrate resulting from the flotation circuit contains approximately 30 percent copper and, in some instances, may also contain significant recoverable concentrations of molybdenum.

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A Review of the Flotation of Copper Minerals

Flotation of sulphidic and oxidic copper minerals is reviewed, with particular reference to previous studies of refractory …

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Phosphate Flotation

For Phosphate, flotation is, in general, very important to upgrading the phosphate rock and is employed in this study to beneficiate a 20% P2O5 feed content to a 30-32% P2O5 content. ... Summary. Description of Ore: Phosphatic sandstone and shale. Assay of Ore: 20.0% P2O5 Method or Process: "Sub-A" Flotation

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Recovery of copper from dilute ammoniacal leachates by ion flotation

Flotation studies were carried out to investigate the removal of copper from wastewaters. Various parameters such as pH, surfactant and frother concentrations and airflow rate were tested to ...

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Challenges and opportunities in the recovery/rejection of trace

Summary and conclusions. ... Froth flotation of copper sulfides in alkaline media has been proposed as suitable for the separation of enargite. Show abstract. A better efficiency for the selective flotation of copper sulfides containing enargite (Cu 3 AsS 4) can be achieved through potential control. It is proposed that oxidizing reagents as ...

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How to be a Flotation Operator

The problem that most flotation operators have in learning their job (after reading the Job Description) isn't with the flow sheet or the mechanical equipment. It is how to recognize the effects that the variables have on each other. The main operating tool that any operator has to use is their own five senses and a healthy dose of curiosity.

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1 Froth Flotation – Fundamental Principles

Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in …

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Estimation of Copper and Molybdenum Grades and Recoveries …

To study the stage recovery of copper, one of the eight identical flotation banks was selected for sampling. It was observed that 17% of copper goes to the tailings and the lowest copper recovery ...

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Flotation of copper oxide minerals: A review

In summary, chelating reagents can activate flotation of copper oxide minerals in a variety of ways, including by enhancing the mineral surface …

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Behavior of talc and mica in copper ore flotation

A high level summary of the approach used, outlining the materials, and measurements conducted is given in Fig. 2. Flotation. Fig. 4 shows the effect of talc and muscovite on the copper flotation grade and recovery. It should be noted that it was only possible to test the talc loading up to 7 wt%.

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Water Requirements of the Copper Industry

TABLE 1. Water use in the copper industry in Arizona and Texas, 1951. 188 2. Unit use of water in the mining of copper ore, 1955_____ 190 3. Previously published data showing unit use of water in the con centration of copper ores principally by water-gravity sepa ration and flotation. _____ _____ _____ 192 4.

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A review of the fundamental studies of the copper activation …

Table 1 provides a summary of copper activation and flotation studies conducted over the last two decades with sphalerite samples of various iron and lead (where this data is available or lead is present) contents. This table also lists the various conditions (where available) used for these studies. The pH, activator and collector used are ...

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Mineralogy and Innovative Flash Flotation Separation …

According to the characteristics of the ore, the innovative process of flash copper flotation in weak acidic pulp and lead flotation, followed by further copper recovery, was developed. The closed-circuit …

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Copper Sulfide Flotation

Summary of Porphyry Copper Sulfide Processing. Flexibility and simplicity are the two most important points to design into any large tonnage flotation operation. The arrangement shown is …

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Estimated Water Requirements for the Conventional …

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 …

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Copper Nickel Flotation

Summary of Results. In summary, data obtained from pilot plant flotation of the Duluth gabbro pit sample confirmed the results of previous laboratory work done on similar samples by the Bureau and other investigators. Copper recoveries for the composite bulk concentrates ranged from 85 pct at a 15-pct-Cu grade to 90 pct at a 10.7-pct-Cu grade.

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