In this research, we tried to investigate the effect of different parameters on ammonia leaching of copper from copper smelting slag by identifying different copper-bearing phases and following them during leaching time. Mineralogical characterization of the smelting slag (1.7 pct Cu) was done using X-ray fluorescence, X-ray diffraction ...
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By Shanna Lewis. · Nov. 11, 2020, 2:52 pm. The Environmental Protection Agency may not have funding next year for a portion of the clean up at the Colorado Smelter Superfund site in south Pueblo ...
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Organic acid leaching of base metals from copper granulated slag and evaluation of mechanism. ABSTRACT A hydrometallurgical method is discussed to selectively extract base metals such as copper, cobalt, nickel and iron from the copper granulated slag (0.53% Cu) at atmospheric pressure. It….
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Slag, a byproduct of metallurgical smelting processes, is a mixture of metal oxides, silicon dioxide, and different compounds [1,2,3,4,5].It is produced from raw ore …
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In the present paper, recovery of valuable metals from copper smelter slag of Balkhash copper plant (Kazakhstan) was investigated. To recover Fe, Zn and Cu to …
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Furthermore, lower content of Pb in the slag can be achieved. For Smelter B, where the slag is sold to cement producers, the situation depends on requirements of different customers in the cement plants. If the cement plant cannot capture SO 2 from the off-gas, the S-content in the slag becomes the main criterion. Additionally, volatile ...
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Abstract. Slag dumping and water granulation are the most commonly used slag treatment methods in the metallurgical industries. In both processes, water is present (by desire for cooling and dispersion or as a result of rain accumulation) and thus equipment and operations are designed to minimize and mitigate the risk of steam explosions …
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A primary lead smelter operating in Santo Amaro, Bahia, Brazil, from 1960 to 1993 generated a large amount of slag that was landfilled close to the former smelter and used in roads and houses as a construction material. To evaluate the stability of the slag classical leaching procedures (TCLP, SWEP and SPLP) were applied. In addition, …
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The treatment of solid wastes and wastewater for sustainable development has been a hot topic. This work proposes a novel process of "waste treating waste" using magnetic copper smelter slag (CSS) as heterogeneous catalyst. The effect of process variables and water matrix was studied on catalytic pe …
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The selective sulfidation of lead smelter slag with pyrite in the presence of carbon and Na salts, and the flotation behavior of synthetic ZnS were studied. The effects of temperature, time, pyrite dosage, Na salts, and carbon additions were investigated based on thermodynamic calculation, and correspondingly, the growth mechanism of ZnS …
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In the present paper, recovery of valuable metals from copper smelter slag of Balkhash copper plant (Kazakhstan) was investigated. To recover Fe, Zn and Cu to water-soluble form, the mixture of 150 g of copper slag and 60 g of 85% sulfuric acid was granulated and then roasted in the temperature range of 473–643 K (200–370 °C) …
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It's slag — waste from the giant lead and zinc smelter located a few miles north in the Canadian town of Trail, British Columbia. The slag is extremely fine and looks like it contains glass chips.
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Mineralogical analysis of the slag samples was done using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) techniques. ... They also reported that the copper content of most smelter slags is normally around 1–2 wt. % while that of the converter slag lies between 2 and 2.5 wt. %. This higher content for the latter is due to …
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Steel slag chunks are created from destroying certain buildings and raider's drop pods and cargo pod events, but never the pods of orbital trader's or quest reward delivery.. Summary []. Their primary use is to be smelted at an Electric smelter for 15 steel.This requires 400 ticks (6.67 secs) of work. They also act as 50% cover.. Analysis …
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The capacity of this smelter is 300 kt/y, it and entails concentrate smelting in one Teniente Converter (TC) of 4 x 15 m, the converting of copper matte in two Peirce-Smith converters (PSC), and the recovery of some valuable metals from slag in one electric slag cleaning furnace (SCF) Devia, Parra, Queirolo, Sánchez, and Wilkomirsky, 2019).
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Annually more than 400 Mt of metallurgical slags are produced worldwide [1,2,3,4,5].From the annual Cu concentrate smelter production capacity, which is equal to around 21 Mt of copper metal in 2021, it can be estimated that more than 45 Mt of CUS were produced from primary sources assuming a slag to copper ratio of 2.2 [3, 4].Only 15% of the CUS worldwide was used as a product, where the rest ...
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Copper slag is composed of iron silicate obtained by smelting copper concentrate and silica flux. One of the most important criteria for the utilization of this secondary resource is the recovery of iron from the slag matrix to decrease the volume of dumped slag. The molten oxidation process with crushing magnetic separation appears …
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During the pyrometallurgical extraction of copper, a significant source of copper loss is discarded slag. In 2021, the global smelter production of copper reached 21.4 million tons [], and the slag produced was approximately 2.2 tons per ton of copper [].The most considerable amounts of slag come from the smelting furnace and often …
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07.29.2014. Slag is a by-product of the metallurgical smelting process. Slag has a double role: it permits removal of impurities, known as gangue, from the melt by forming oxides. …
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Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction Hydrometallurgy, 67 ( 1–3 ) ( 2002 ), pp. 63 - 69, 10.1016/s0304-386x(02)00138-x View PDF View article View in Scopus Google Scholar
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A hydrometallurgical process for recovering vanadium from slag, a byproduct of steelmaking, has been significantly scaled up. Previously deployed at mini-pilot and bench scales, the process, developed by Neometals Ltd., has now been expanded by a factor of 25, to process 14 tons of slag (corresponding to a throughput of around 25 …
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During the pyrometallurgical extraction of copper, a significant source of copper loss is discarded slag. In 2021, the global smelter production of copper reached …
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FeO, Fe3O4, BaO, MgO, CaO, MnO, P2O5, SiO2, etc.) in slag materials has a high adsorption capacity for different contaminants from aqueous solutions. Thus, the justification for investigating the recycled smelter slag as an adsorbent for the removal of heavy metals and other contaminants (e.g., phosphorus (P), nitrogen-NH4, …
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A copper smelter slag from Lubumbashi, Democratic Republic of Congo, containing 1.4% Cu, 0.7% Co, 8.9% Zn and 20.9% Fe(II), has been used in this study. The leaching tests have been carried out at ...
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Copper smelter slag typically contains about 1% copper and 40% iron depending upon the initial ore quality and the furnace type. Significant amounts of silica and minor amounts of other elements (e.g., zinc, molybdenum, lead and arsenic) are also associated with this slag. Some of these minor elements can be deleterious to the …
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The Induction Smelter is a block added by the Thermal Expansion mod. A machine that uses a catalyst to enhance the smelting process. In addition to Ingots, it has the potential of producing Rich Slag, itself used as a catalyst; bonus ingots and Slag that can be processed into Rockwool.The machine has two inputs, one for the catalyst and one for the resource …
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The main results of this characterization conrm that the Zellidja slag has a grain size similar to that of a sandy material with the dominance of 67.94% of medium sand, a bulk density of 2.02 g/cm3. and a very high cleanliness marked by a sand equivalent value of 90% and a methylene blue value of 0.20 ml/g [15].
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Matte Smelting. Pierce-Smith Converters are operated batch-wise, by blowing natural air at a rate of 650Nm3/min through a set of 48 tuyères submerged into molten matte to oxidise the sulphur and the iron, and then adding silica flux to form an iron-rich fayalite slag. Once all of the iron has been removed in the form of slag, further air ...
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The short-term leaching behavior of a landfilled primary Pb smelter slag from the Santo Amaro (Brazil) smelter was investigated using about 1-day contact time with acid and alkaline solutions. Strong alteration of this slag was observed only below pH 3. In this extreme environment, in addition to the previously discussed behavior of Ca, Si, Fe, …
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1. Introduction. Slag examined in this study is defined as the predominantly silicate and oxide by-product derived from smelting metallic ore. The two main types of …
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While the latter two make up just .35 percent of the slag, there's enough slag that the lead and silica alone total nearly 200,000 tons – enough to fill almost 2,000 ore trucks stretching ...
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The results show that the distributions of Cu and Co are mainly enriched in Cu-Co matte, and the distribution ratio, L Cu and L Co, improve with increasing of coke amount or pyrite addition, whereas above 6 wt.% coke or 20 wt.% pyrite, Cu and Co tend to transfer from matte to cleaned slag. A properly high temperature (1300°C) and smelting ...
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Shrinking core model with mixture kinetics was used to describe the process of ammonia leaching of copper from smelter slag. The activation energy and pre-exponential factor for the reactions of ...
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1. Introduction. In the smelting and conversion processes of copper manufacturing, copper slag with 2–3 times of crude Cu is produced (Phiri et al., 2022, …
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Slag Characterization. A sample of smelter copper slag supplied by the Ghaniabad Copper Smelting Plant (Ghaniabad, Semnan, Iran) has been studied in this work. Representative samples, obtained by a riffle sample divider, were ground in a ball mill and were screened to obtain the desired particle size (d 80 = 90 μm). The sample was ...
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More than one mechanisms were involved in the adsorption of phosphorus onto copper smelter slag as suggested by multi-linearity of intra particle diffusion model. Ninety seven percent (97.5 ± 0.0 ...
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The most recent European statistics for 2018 indicate that 19.2 Mt of BF slag and 15.7 Mt of slag from steel production were produced in Europe. 3 For non-ferrous …
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The lead smelter slag may be regarded as an important secondary resource, since tons of the slag containing 10 to 25% Zn, 3% Pb and other minor valuable elements are discharged every year by ...
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Materials. The smelting slag used in this study was obtained from a copper plant in China. Mineralogical analysis, performed using scanning electron microscope (SEM) and energy dispersive X-ray spectroscope (EDS), polarizing microscope and X-ray diffraction (XRD), indicated that fayalite (Fe 2 SiO 4) and magnetite (Fe 3 O 4) phases …
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