قائمة الطعام
In generally, such copper slag is subjected to recovery copper through flotation, which results in the generation of a large number of flotation wastes, so-called flotation waste of copper slag (FWCS) (Min et al. 2015; Xie et al. 2013). As for the arsenic-containing exhaust gas, it is commonly washed with diluted acid, accompanied by the ...
There is a growing interest in valorisation of copper from the mining waste of the RTB Bor. Antonijević et al. [4] tested leaching of copper from flotation tailings of the copper mine Bor in a ...
CaCO 3-rich marble cutting waste is a residual material produced by the cutting and polishing of marble stone. In this study, the feasibility of using the marble cutting waste as an acid-neutralizing agent to inhibit AMD and immobilize heavy metals from copper flotation tailings (sulfide- bearing wastes) was investigated.
Copper flotation waste, generated as a byproduct of pyrometallurgical copper production, con-tains a significant amount of Cu together with trace amounts of other toxic elements such as Fe, Sn, Sb ...
In Poland, there are significant deposits of copper ores. During the copper extraction, large amounts of flotation wastes are produced. In the ores and flotation wastes many other important elements are present. The main goal of this work was analysis of uranium content and to elaborate procedures for recovery of U from these materials. …
Copper flotation waste from copper production using a pyrometallurgical process contains toxic metals such as Cu, Zn, Co and Pb. Because of the presence …
Problem: A copper ore initially contains 2.09% Cu. After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of …
1. Introduction. The concentration of sulfide copper minerals by means of flotation generates large volumes of tailings. It is estimated that one hundred twenty-five tons of tailings are generated per one ton of produced copper, and its generation is on a continuous rise because of the decrease of the copper grades [1].On the one hand, the …
Copper flotation waste, generated as a byproduct of pyrometallurgical copper production, con-tains a significant amount of Cu together with trace amounts of other toxic elements such as Fe, Sn, Sb, As, and Pb. It is usually disposed in uncovered tailing ponds in the vicinity of a copper smelter plant. Heavy metals released into the water and ...
Copper flotation waste, generated as a byproduct of pyrometallurgical copper production, con-tains a significant amount of Cu together with trace amounts of other toxic elements such as Fe, Sn, Sb, As, and Pb. It is usually disposed in uncovered tailing ponds in the vicinity of a copper smelter plant. Heavy metals released into the water and ...
The vitrification of an hazardous iron-rich waste (W), arising from slag flotation of copper production, was studied. Two glasses, containing 30wt% W were melted for 30min at 1400 degrees C. The first batch, labeled WSZ, was obtained by mixing W, blast furnace slag (S) and zeolite tuff (Z), whereas …
Copper flotation waste from copper production using a pyrometallurgical process contains toxic metals such as Cu, Zn, Co and Pb. Because of the presence of trace amounts of these highly toxic metals, copper flotation waste contributes to environmental pollution. In this study, the leaching character …
Copper smelters produce large amounts of copper slag or copper flotation waste and the dumping of these quantities of copper slag causes economic, environmental and space problems. The aim of this study was to perform a laboratory investigation to assess the feasibility of immobilizing the heavy metals contained in copper flotation waste.
1. Introduction. Waste management of solid state becomes an area of interest for many scientists. The copper ore post-flotation tailings produced by froth flotation are a mixture of water, ground rocks, and chemical reagents and represent 95–99% of crushed ores; this means that for each ton of copper obtained through froth …
The current way of managing the copper ore flotation waste is by placing it in waste neutralization facilities. However, flotation waste has great potential in application in cement composites.
Flotation waste of copper slag (FWCS) was used as a raw material for the preparation of a micro-electrolysis material (MEM) through a carbothermal reduction process. The performance of MEM was evaluated for the degradation of organic contaminants in water. The effects of preparation conditions on the performance of MEM …
The electrocoagulation/flotation treatment (ECF) was employed for the reduction of copper from the waste developer in a batch study by using four different aluminum and iron electrode ...
Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 Tailings 90 0.1 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only assays are available, the ratio of concentration equals (20 – 0.1)/(2.09 – 0.1) = 10 ...
The electrocoagulation/flotation treatment (ECF) was employed for the reduction of copper from the waste developer in a batch study by using four different aluminum and iron electrode combinations with independent ECF parameters such as current density, interelectrode distance and operating time.
In this study, two new variants of the recurrent neural network (RNN) method were used to predict the copper ore flotation indices, i.e., grade and recovery within different operating conditions. The model input parameters including pulp pH and solid content as well as frother and collector dosages were first analysed and then …
Sorption affinity of copper flotation waste from KGHM toward Cd (II), Cr (III), Cu (II), and Pb (II) ions was investigated in this work. Batch sorption studies, using …
The copper flotation waste samples used in this research were obtained from the Black Sea Copper Works of Samsun, Turkey. The samples were dried at 103 °C to eliminate the water content. Copper flotation waste has a black color and glassy appearance. The specific gravity of copper flotation waste is 3100 kg/m 3. The …
Corpus ID: 1438457. Vitrification of copper flotation waste. A. Karamanov, M. Aloisi, M. Pelino. Published in Journal of Hazardous… 9 February 2007. Materials …
The potential use of flotation waste copper slag as an iron source in the production of Portland cement clinker has been reported (Alp et al., 2008). The clinker products obtained using copper slag from the industrial scale trial operations were characterised and the physico-mechanical performance of the resultant cement products …
The copper flotation waste samples used in this research were obtained from the Black Sea Copper Works of Samsun, Turkey. The samples were vitrified after being mixed with other inorganic waste and materials. The copper flotation waste and their glass-ceramic products were characterized by X-ray analysis (XRD), scanning electron microscopy and ...
The copper slags and copper flotation waste generated from the copper industry are classified as "Hazardous waste" according to current literature (Conner, 1990; US EPA, 1991). Copper flotation waste generally contains significant amounts of Cu together with trace elements of other toxic metals such as Zn, Co and Pb.
Copper flotation waste is an industrial by-product material produced from the process of manufacturing copper. The main concern with respect to landfilling of copper flotation waste is the release of elements (e.g., salts and heavy metals) when in contact with water, that is, leaching. Copper flotation waste generally contains a …
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 …
Vitrification of copper flotation waste. Vitrification of copper flotation waste. mirko aloisi. 2007, Journal of Hazardous Materials. See Full PDF Download PDF.
In this work, the prediction and optimisation of copper flotation has been conducted in the rougher flotation circuit. The copper-recovery prediction involved the application of support vector machine (SVM), Gaussian process regression (GPR), multi-layer perceptron artificial neural network (ANN), linear regression (LR), and random …
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