Chile, the world's largest copper producer, generates massive amounts of mine tailings that are a source of ongoing environmental concern for local communities. The main objective of this work is to evaluate the concentration of As, Cd, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Zn and SO42− in soils, water and vegetation in the communities surrounding the Cu Ovejería …
Typical sulphide copper ore flowsheet process of copper mine tailings management. After the mine tailings are thickened in the thickening equipment, they are generally transported to the …
The index properties of the copper tailings are presented in Table 1. The liquid limit falls under the category of a silty soil since it is in between 30-40%. The plastic limit, when computed, is …
To account for copper grade declines, it is assumed that the degradation of copper ore grades follows the power regression relationship according to Crowson (2012). Copper tailings are produced from different mines, and thus it is important to fully characterize the quality and quantity of copper tailings at each site. ... Table 2 depicts how ...
The method employed comprised open-air water leaching of weathered piles of copper-bearing ore followed by precipitation of the copper by iron. ... At the Castle Dome operation of the Miami Copper Co., the tailing solution flows through shallow ponds and is cascaded down the banks to precipitate basic iron salts and thereby lower the iron ...
Table 2 Tailing pond ... Flotation waste, which was produced through seventy years of copper ore processing in RTB Bor, Serbia, is deposited in a flotation tailings pond. In total, almost 26.4 Mt ...
Shown in Table 2 is the chemical composition of copper mine tailings in comparison with conventional soil. The chemical elements found in CMT are comparable to that of other geologic...
The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical characteristic, the liberation …
A number of tailing dumps were assessed by the report (2014) as shown in the table above. Some of the tailing dumps posing threat to the environment were selected as shown in table 1.
The Sungun mine is the largest open-cast copper mine comprising more than 388 million tons of copper ore with an average copper content of 0.63% in Iran. The location of the Sungun surface mine is illustrated in Fig. 1. In the mining processes, approximately 13.7 million tons of CMT material as solid waste is generated annually. To prevent
copper porphyry. Extensive open mining and limited underground mining was conducted between 1979 and 1983. In order to extract copper, the ore was first crushed and grinded. Forth floatation was performed to remove unwanted rock, gangue, from the copper ore. From this process, a 25% copper concentrate was achieved. Further
For example, the copper tailing (Manjarrez, 2018) has a very high similarity (index value 1) with the copper studied by Ahmari (2012) Full size image Regarding the chemical composition of different mining tailings obtained from X-ray fluorescence (FRX), a majority composition of SiO 2, Fe 2 O 3, Al 2 O 3, and CaO was observed in order of ...
Copper slag flotation tailing (CSFT) is a by-product of Cu pyro-metallurgical production, which accounts for more than 80 % of all Cu products produced worldwide [1].During Cu extraction, molten Cu slag is generated, which consists of a matrix of iron silicates (Fe 2 SiO 4), metal oxides, and matte droplets [1].Copper is usually recovered by froth flotation after …
Copper mining is a massive industry in the Southwest, ... In reference to Table 3 and ternary diagrams for chemical compositions of copper slag and copper tailing that are given in Fig. 2 (c) ... This study used a copper tailing-based geopolymer in road construction, passing several state DOT requirements for cement-treated road bases. ...
The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained ...
The increasing use of copper and its allied materials across many industries is ramping up copper mining activities in many countries, and proper management and disposal of huge volumes of copper mine tailings arising thereof is a huge challenge. Sungun mine is the biggest open-cast copper mine in the northwest of Iran. Approximately 13.7 million tons of …
Copper tailing is the waste rock remaining after ore has been processed to remove the copper. It is usually pulverized to the size of fine sand. It has relatively high specific gravity and primarily consists of silica in its composition.
The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied. It was shown that water leaching provided selective extraction of Cu and Zn and comparatively low iron ion extraction. …
stabilized copper mill tailings in road construction are presented. Properties of three types of tailings were evaluated after preliminary testing of several tailings from Arizona, Idaho, and Utah.
Recent focus on hydrometallurgical methods for non-sulfide copper ores prompted a study on leaching a copper oxide ore containing 2.22% Cu, 44.9% SiO2, 6.94% Al, 6.61% Fe, 6.25% Mg, 3.67% Ca, and 1.7% Na with H2SO4 for gaining insight into the behavior of impurities in the leaching process. The effects of leaching time (30–180 min), acid concentration (0.25–2 …
The dose rates of an underground copper-zinc mine and the radioactivities of collected samples were measured using a surveymeter and a gamma-ray spectrometer. There was no significant difference found between mine dose rates and background radiation in the region. The average activity concentrations of 226Ra, 232Th, and 40K in tailing samples were …
Copper is a key resource in modern industry and society. However, copper is finite like all natural resources, and increasing demand for this material depletes global copper reserves. Recovering copper is a crucial …
Since abandonment, calculated erosion rates of 493 t ha⁻¹ year⁻¹ (tailing II) and 232 t ha⁻¹ year⁻¹ (tailing III) are in agreement with those determined in other mining areas.
The water-, energy- and material-related LCI results of this Norwegian underground copper mine were benchmarked with two reference cases (Table 5): one Australian underground copper ore (Norgate and Haque, 2010) and the other representing European copper mine operations on average (underground mining 30% and open pit 70%) in the latest ...
The tailing from the tables flows to the dam, the retaining-wall being built by allowing the coarse sand to escape through cones or inverted pyramids attached to the tailing-launder. The concentrate from all flotation plants and the tables, containing about 28% copper, 16% iron, and 26% insoluble matter, goes to a drag-classifier.
The copper tailing suspension was prepared at 30 wt% solids concentration. Initially, the polymer solutions of NPAM (0.05 wt%) and PCE (1.00 wt%) were prepared for all the measurements at 25 °C. The copper tailing suspension of 100 mL was stirred vigorously at 500 rpm using a stirrer for 10 min in a beaker.
Chibuluma Mines Plc is a copper mining company that is located in Lufwanyama district of the Copperbelt province of Zambia. The company mines copper ore and treats it via froth flotation. ... Based on the results in Tables 5 and 6, ... A combination of froth flotation and leaching yields a final tailing of 0.02 weight copper, hence representing ...
Copper ore tailings: Copper ore tailing used in the experimental program was procured from Ingaldal Copper Mines, a unit of the Hutti Gold Mines Company Ltd., dry mode of under …
Copper slag tailings, primarily stemming from pyrometallurgical processes, predominantly consist of a silicate matrix [].It is estimated that 2–2.2 tons of slag tailing are generated for every ton of copper produced, and …
Indexes of academic publications in areas of knowledge related to tailings in mining in the world between 1990 -2022. Data source: Scopus. …
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