Copper slag, a waste solid produced in the copper smelting process, is a high-quality secondary resource with huge output. The recycling and utilization of copper slag is of great interest because it avoids the loss of valuable metals and the threat of harmful metals, and saves a lot of natural resources and energy. This paper firstly …
In the results, the added copper slag was greatly beneficial for increasing the flowability and strength of mortar, and, given all the results of attenuation parameters, the use of copper slag as ...
A review on the recovery of copper from waste copper slag. • Discussion on physical beneficiation, pyro- and hydrometallurgical routes. • Critical aspects of froth flotation discussed.
The feasibility of preparing zinc ferrite from high-zinc electric arc furnace (EAF) dust and high-iron copper slag (CS) based on direct microwave roasting of the wastes together was assessed in this study, with a focus on the effect of microwave roasting temperature.
new technologies such as the electric slag-cleaning furnace and the rotary slag-cleaning furnace evolved to replace the slag-cleaning function of reverberatory furnaces. Alternatively, slow cooling of slags followed by milling and flotation also be-came established technology. Three seminal studies during this era subsequently established …
Over 50 million tons of copper slag are produced worldwide annually. Stacking is currently the primary method used to treat copper slag, resulting in …
Copper slag is a by-product obtained during smelting and refining of copper. The waste copper slag can be used as abrasive tools, road construction, and ballast. Despite increasing rate of reusing copper slag, the huge amount of its annual production is disposed in dumps or stockpiles to date.
The recovery of copper from smeltery furnace slag by flotation has been studied. By analysis the slag containing 1.61% copper and 27.80g/t silver is available to recovery.
Flash smeltingFlash smelting furnace (FSF) and oxygen bottom-blowing furnaceBottom-blowing furnace (BBF) are the major technologies used in copper industry to produce matte. Different requirements of copper concentrate, furnace arrangement, and operating parameters...
The traditional treatment of blast-furnace slag has been studied for decades with respect to numerous processes and fundamental parameters. Differences exist between copper slag and traditional blast-furnace slag in terms of recovery methods, along with difficulties.
Cleaning experiments of a copper matte smelting slag from the water-jacket furnace was undertaken by direct reduction in a laboratory-scale electric furnace.
Textural, mineralogical and chemical characteristics of copper reverb furnace smelter slag of the Okiep Copper District, South Africa
Abstract. Secondary copper blast furnace slag was treated with carbon to derive the conditions for maximum recovery of copper with minimum simultaneous …
The recovery of iron from copper slag is an economically feasible and environmentally significant process due to the increasing volume of slag in primary copper production and the potential for metal losses in discarded slag.
By using copper slag as an additive and synergistically modified high basicity BOF slag, the iron oxides present in the industrial BOF slag and copper slag could be transformed to MgFe 2 O 4 and recovered by magnetic separation. Based on the systematic experiments using modification-magnetic separation technology, the modification …
With the development of the economy and the increasing annual output of copper, the treatment of copper slagCopper slag has become a more and more critical issue. Copper slag contains valuable metals such as iron, copper, gold, silver, lead, and zinc, which have...
To show that metal extraction from copper slag can be enhanced using pyrometallurgical processes, a pilot plant was developed at Mintek, South Africa, and the process was then implemented on an industrial scale for recovery of cobalt from copper slag in a DC arc furnace at the Chambishi smelter, Zambia.
Converter copper slag can be viewed as an important secondary resource for valuable metals, considering its high commercial value. The current research investigates the recycling of copper by a combination of theoretical and experimental methods. Based on a modified Stokes equation, it was determined that copper droplets …
The matte and slag phases separate via density differences. Understanding the height of each layer in the furnace is critical for process control, furnace integrity, and …
Copper slag and stainless steel slag of Electric Arc Furnace (EAF) are two typical metallurgical solid wastes, which contain a large number of valuables, such as Fe, Cr, and Cu. The transition metal elements in the waste slags, such as Cr and Fe, can ...
In the quest to achieve the highest metal recovery during the smelting of copper concentrates, this study has evaluated the minimum level of soluble copper in iron-silicate slags. The experimental work was performed under slag-cleaning conditions for different levels of Fe in the matte and for a range of Fe/SiO2 ratios in the slag. All …
copper oxide from a synthetic nonferrous slag by carbon (Reddy et al., 2003). Kinetics of reduction of metal oxides of valuable metals from copper blast furnace slags has not been studied. The present investigation was undertaken to determine conditions favorable for maximum recovery of copper from a copper blast furnace slag.
In this study, effects of fluxing conditions on cleaning process of Fangyuan bottom blown furnace slag have been investigated with the aim of minimizing the copper loss in …
The aim of the present study was to characterize the fayalite crystal phases in two types of copper slag flash smelting furnace slag (FS) and converter (CS) slag, given their possible use in ...
The description of a new approach for the treatment of electric furnace slag concludes the considerations concerning the different residues. While the introduction of primary copper smelting slag into an electric furnace displays a commonly applied procedure which leads to a marketable product, legislative as well as environmental …
Secondary copper blast furnace slag was treated with carbon to derive the conditions for maximum recovery of copper with minimum simultaneous reduction of iron oxide. Experiments were carried out to study the effects of parameters such as temperature, carbon addition and CaO addition to the slag on the efficient recovery of copper. A two …
The safe and efficient treatment of copper slag (CS) is an important aspect of the circular economy and green development. In order to reduce the negative environmental impact, CS is used as a precursor to substitute different contents of ground granulated blast furnace slag (GGBS) in the manufacturing of alkali-activated materials (AAM)) in this …
The authors further consider that under exceptionally well-controlled conditions, a copper content in electric furnace discard slag between 0.55 wt.% and 0.7 wt.% can be obtained, by minimizing...
The maximum recovery of copper in alloy phase was obtained with 5% (by weight) initial carbon in the feed, 2% (by weight) CaO addition to the slag and a …
In the quest to achieve the highest metal recovery during the smelting of copper concentrates, this study has evaluated the minimum level of soluble copper in iron-silicate slags.
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