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copper tailings iron content

copper tailings iron content

Leaching of iron from copper tailings by sulfuric acid ...

the leaching behaviors of iron can promote the utilization of copper tailings. In this study, the kinetics and mechanism of the leaching of iron from copper tailings using sulfuric acid were studied. Under optimal conditions (40 C, sulfuric acid concentration of 0.53 mol L 1, stirring speed of 400 rpm,

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Distribution of Zinc, Copper, and Iron in the Tailings

2018-11-17  This paper addresses the mechanism of acid mine drainage generation in tailings from an abandoned mine site and predicts the evolution of zinc (Zn), copper (Cu), and iron (Fe) concentrations. Batch leaching experiments and sequential extractions were conducted to investigate the leaching behavior of these contaminants from the tailings and to understand their solid-phase partitioning.

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Recovery of Iron from Tailings of Yangla Copper Ore

This study was aimed to recover iron from tailings of Yangla copper ore, Fe content of which was 15.31%, and the content of strong magnetic iron mineral was about 11%.

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Copper Tailing - an overview ScienceDirect Topics

The copper tailings were used at 20% content as a fine granite replacement for fraction size smaller than 1.18 mm. The aggregate grading of the copper tailings mix was kept similar to the reference mix, thus the difference in aggregate packing between the two mixes was kept to a minimum. In the same study, the effects of bitumen characteristics were investigated; however, this is considered to be outside the

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Preparation and microstructural characterization of a ...

2020-7-20  Therefore, the proper mixing ratio of 3D printable building material composed of copper tailings and iron tailings can be achieved by containing 40% iron tailings, 10% copper tailings, 19% fly ash, 30% belite cement, and 1% FDN water reducing agent.

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Evaluation of metal mobility from copper mine

Evaluation of metal mobility from copper mine tailings in northern Chile. ... analysis. The results from the comparison between both substrates showed that in general, the tailing presented greater content of metals. ... statistically significantly affected the copper mobility and the organic amendment significantly influenced the iron mobility ...

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Economic Potential for reprocessing Copper Mine Tailings ...

2016-7-31  total of 81 tailings samples were analyzed using XRF, during the survey sampling. The copper grade of the tailings varied between 0.1 % and 1.7 %. Further elements of interest were iron, gold, molybdenum and zinc.

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USE OF COPPER ORE TAILINGS - AS AN EXCELLENT

2020-2-21  country are copper oretailings, iron ore tailings, manganese ore tailings, gold tailings, ore zinc ore tailings, lead ore tailings, metal extracts etc [1, 2, 5]. Copper ore tailing is the fine gray type sandy material and it has some acidic smell. It can damage the root of the plants by mixing heavy metal contaminants in the soil. Copper ore

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Common Copper Tailings Reprocessing Methods -

2020-11-16  01 1.Copper tailings physical and chemical properties. The physical form of copper tailings is similar to sand. However, it has more complex mineral composition than sand. There are a large number of valuable elements such as silicium, calcium, aluminum, iron. The main mineral is quartz, feldspar, calcspar, mica, copper pyrites, pyrrhotite, etc.

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Report of Investigation 17 - Michigan

2016-2-26  and 5-61 ppm magnesium. Traces of copper ranged from 4 ppm in iron tailings to 570 ppm in copper tailings. Iron content varied from 137 ppm in copper tailings to 1,248 ppm in iron tailings. Particle size separates ranged from fine sand to clay. The tailings are structureless with no consistency, and are easily eroded by wind and water.

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Recovery of Iron from Tailings of Yangla Copper Ore

Against the dwindling status of mineral resources at present, effective recycling of tailings resources is an effective way to alleviate the shortage of resources, and to improve enterprise efficiency. This study was aimed to recover iron from tailings of Yangla copper ore, Fe content of which was 15.31%, and the content of strong magnetic iron mineral was about 11%.

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Recovery of iron from copper tailings via low

2017-4-6  Currently, the majority of copper tailings are not effectively developed. Worldwide, large amounts of copper tailings generated from copper production are continuously dumped, posing a potential environmental threat. Herein, the recovery of iron from copper tailings via low-temperature direct reduction and magnetic separation was conducted; process optimization was carried out, and the ...

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Geotechnical Properties of Mine Tailings

which are smaller than those of the iron tailings but slightly larger than those of natural soils. Fig. 1 indicates that the mass percentage of grain size less than 0.075 mm is 14.9% for the coarse iron Table 1. Geotechnical Properties of Coarse and Fine Tailings Properties Yuhezhai iron tailings Bahuerachi copper tailings Coarse tailings Fine ...

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Recovery of Iron from Copper Tailings by Direct

Direct reduction of copper tailings were performed to recover iron efficiently by carbon-containing pellets, and the metallization rate was gained by chemical analysis method. The results showed that the metallization rate of copper tailings was up to 85.32% and the best reduction parameters are also found. Content of precious metals, such as, gold, silver in copper tailings can be enriched by ...

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Economic Potential for reprocessing Copper Mine Tailings ...

2016-7-31  A total of 81 tailings samples were analyzed using XRF, during the survey sampling. The copper grade of the tailings varied between 0.1 % and 1.7 %. Further elements of interest were iron, gold, molybdenum and zinc. This data and the tonnage of the tailings ponds was the basis to select four sites for a more detailed

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Geotechnical Properties of Mine Tailings Journal of ...

The engineering properties of tailings are important for the safety evaluation and engineering design of tailing dams. In the present study, laboratory experiments were performed to investigate the geotechnical properties of four different tailings, including two iron tailings (coarse and fine) and two copper tailings (coarse and fine).

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Mine tailings: reprocess, recover recycle – The ...

2019-9-13  Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in 1999 was US$1,500/tonne then that 10% represented US$166.5 million of metal. Fast forward 20 years and at today’s price, US$5,842/tonne, if that material could be reprocessed and an extra ...

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Application of copper tailings combined with

2020-8-31  In this paper, wasted copper tailings (CT) were used to activate persulfate (PS) to degrade azo dye methyl orange (MO). The results show that a large amount of FeS 2 contained in CT can slowly release Fe 2+ in the aqueous solution to activate PS to generate reactive oxygen species to degrade MO. When the dosage of CT and PS was 2 g/L and 3 mM respectively, the MO degradation efficiency of 20 ...

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Effect of Tailings Fine Content on the Properties of ...

2021-6-2  In order to quantitatively study the influence of tailings fine content on the properties of cemented paste backfill (CPB) and further understand the mechanism of tailings fine content acting, the concept of packing density was introduced in this study. The packing density of each tailings sample was measured by the wet packing method after the samples with various fine contents were prepared.

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Report of Investigation 17 - Michigan

2016-2-26  and 5-61 ppm magnesium. Traces of copper ranged from 4 ppm in iron tailings to 570 ppm in copper tailings. Iron content varied from 137 ppm in copper tailings to 1,248 ppm in iron tailings. Particle size separates ranged from fine sand to clay. The tailings are structureless with no consistency, and are easily eroded by wind and water.

Get Price

Recovery of iron from copper tailings via low

2017-4-6  Currently, the majority of copper tailings are not effectively developed. Worldwide, large amounts of copper tailings generated from copper production are continuously dumped, posing a potential environmental threat. Herein, the recovery of iron from copper tailings via low-temperature direct reduction and magnetic separation was conducted; process optimization was carried out, and the ...

Get Price

Distribution of Zinc, Copper, and Iron in the Tailings Dam ...

2020-3-2  1 1 Distribution of Zinc, Copper, and Iron in the Tailings Dam of an Abandoned Mine 2 in Shimokawa, Hokkaido, Japan 3 4 KimLeang Khoeurn1*, Asuka Sasaki1, Shingo Tomiyama 2, and Toshifumi Igarashi2 5 1Graduate School of Engineering, Hokkaido University, Sapporo, 0608628, Japan, Tel.: +81-11-706-6311, Fax: - 6 +81-11-706-6308; 2Faculty of Engineering, Hokkaido University,

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Recovery of Iron from Copper Tailings by Direct

Direct reduction of copper tailings were performed to recover iron efficiently by carbon-containing pellets, and the metallization rate was gained by chemical analysis method. The results showed that the metallization rate of copper tailings was up to 85.32% and the best reduction parameters are also found. Content of precious metals, such as, gold, silver in copper tailings can be enriched by ...

Get Price

Evaluation of metal mobility from copper mine

Evaluation of metal mobility from copper mine tailings in northern Chile. ... analysis. The results from the comparison between both substrates showed that in general, the tailing presented greater content of metals. ... statistically significantly affected the copper mobility and the organic amendment significantly influenced the iron mobility ...

Get Price

POTENTIAL ENHANCEMENT OF COMPREHENSIVE

2016-1-10  pyrite concentrate (iron content of 45.12%, sulfur content of 52.1%, iron recovery of 89.16%); secondary tailings (Cu content of 0.13%, Mo content of 0.09%). Material constitution of process products of the self-contained experiment The copper concentrate has the

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Mine tailings: reprocess, recover recycle – The ...

2019-9-13  Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in 1999 was US$1,500/tonne then that 10% represented US$166.5 million of metal. Fast forward 20 years and at today’s price, US$5,842/tonne, if that material could be reprocessed and an extra ...

Get Price

Mineralogical characterization of copper sulfide

2020-2-18  As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) integrated with scanning electron microscopy–energy ...

Get Price

Application of copper tailings combined with

2020-8-31  In this paper, wasted copper tailings (CT) were used to activate persulfate (PS) to degrade azo dye methyl orange (MO). The results show that a large amount of FeS 2 contained in CT can slowly release Fe 2+ in the aqueous solution to activate PS to generate reactive oxygen species to degrade MO. When the dosage of CT and PS was 2 g/L and 3 mM respectively, the MO degradation efficiency of 20 ...

Get Price

Environmental-Friendly Process for Recovering

2021-3-12  Contamination of heavy metals from mill tailings is a global problem. China’s Jinchuan Group Limited has stored approximately one billion tons of mill tailings which contain toxic levels of copper, nickel, and other metal compounds. To solve the problem, this work extended the principle of hydrometallurgical extraction to the recovery of copper/nickel from Jinchuan tailings and designed an ...

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Report of Investigation 17 - Michigan

2016-2-26  and 5-61 ppm magnesium. Traces of copper ranged from 4 ppm in iron tailings to 570 ppm in copper tailings. Iron content varied from 137 ppm in copper tailings to 1,248 ppm in iron tailings. Particle size separates ranged from fine sand to clay. The tailings are structureless with no consistency, and are easily eroded by wind and water.

Get Price

Recovery of iron from copper tailings via low

2017-4-6  Currently, the majority of copper tailings are not effectively developed. Worldwide, large amounts of copper tailings generated from copper production are continuously dumped, posing a potential environmental threat. Herein, the recovery of iron from copper tailings via low-temperature direct reduction and magnetic separation was conducted; process optimization was carried out, and the ...

Get Price

Distribution of Zinc, Copper, and Iron in the Tailings Dam ...

2020-3-2  1 1 Distribution of Zinc, Copper, and Iron in the Tailings Dam of an Abandoned Mine 2 in Shimokawa, Hokkaido, Japan 3 4 KimLeang Khoeurn1*, Asuka Sasaki1, Shingo Tomiyama 2, and Toshifumi Igarashi2 5 1Graduate School of Engineering, Hokkaido University, Sapporo, 0608628, Japan, Tel.: +81-11-706-6311, Fax: - 6 +81-11-706-6308; 2Faculty of Engineering, Hokkaido University,

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Evaluation of metal mobility from copper mine

Evaluation of metal mobility from copper mine tailings in northern Chile. ... analysis. The results from the comparison between both substrates showed that in general, the tailing presented greater content of metals. ... statistically significantly affected the copper mobility and the organic amendment significantly influenced the iron mobility ...

Get Price

Copper tailings as a potential additive in concrete ...

2016-7-20  copper tailings was performed. The specific gravities of the fine, coarse aggre gates and copper tailings were 2.70, 2.54 and 4.29, respectively. The high specific gravity of the copper tailings was attributed to the high concentration of iron (III) oxide in it. Similarly, the water absorption

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Uptake of Iron and Copper by Sorghum from Mine

Iron-sulfur compounds (pyrites) are the dominant trace metal containing minerals. When reacted at 200C for 2 hours with concentrated H 2 SO 4, the water-soluble Fe content of the tailings increases manyfold. The greater the amount of acid used, the greater was the soluble Fe.

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POTENTIAL ENHANCEMENT OF COMPREHENSIVE

2016-1-10  pyrite concentrate (iron content of 45.12%, sulfur content of 52.1%, iron recovery of 89.16%); secondary tailings (Cu content of 0.13%, Mo content of 0.09%). Material constitution of process products of the self-contained experiment The copper concentrate has the

Get Price

Evaluation of metal mobility from copper mine

This work shows the results obtained on a copper mine tailing in the Antofagasta Region, Chile. The tailing was classified as saline-sodic with high concentrations of metals, especially Cu and Fe, with pH 8.4. Our objectives were to (1) compare the physicochemical properties of the tailing with surr

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Leaching Characteristics of Upgraded Copper Flotation

2013-6-7  upgraded copper flotation tailings. The qualitative results in table II shows that after the untreated sample was beneficiated using the knelson concentrator (KC-MD3) the Mg content decreased by an average of ~1.9%. The Al content was downgraded by an average of ~2.63% with Fe content lowered by ~ 0.8%. The copper content in the sample was upgraded

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Mineralogical characterization of copper sulfide

2020-2-18  As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) integrated with scanning electron microscopy–energy ...

Get Price