Sustainable and Comprehensive Utilization of Copper Slag: A …
Within this paper, application options, the environmental behavior, and ways to treat copper slag in order to remove hazardous and recover valuable metals are critically …
Within this paper, application options, the environmental behavior, and ways to treat copper slag in order to remove hazardous and recover valuable metals are critically …
Copper slag, Iron ore tailings (IOT) and M-Sand (MS) were the materials used as partial replacements for river sand among them Copper slag and Iron ore tailings were used as in replacement levels ...
Copper slag is a by-product obtained during the matte smelting and refining of copper. Singapore imports huge amount of copper slag to be used as abrasive material for ship clearing and repairing, and resulting in used copper slag as waste material. ... Singapore being an island country and having shortage of landfill space, hence copper slag ...
Proper disposal of spent copper slag will prevent soil and water contamination, especially when removing dangerous substances like lead-based paint. It's thus recommended that systems that arrest dust and other emissions be put into place to reduce this environmental effect. Recycling and reusing copper slag can also reduce waste, decrease ...
It unlocks opportunities for production of metals for energy storage using cleaner and more efficient production technologies as well as developing effective recycling strategies to solve both the metal supply and waste disposal problems. Copper slag contains significant amounts of valuable metals with average of 1.83 wt% Zn, 1.67 wt% Ag, 1.36 ...
This review article provides the environmental and socioeconomic impacts of slag, as well as a characterization of copper slag, with the aim of reusing and recycling the slag to benefit the ...
Advances in recovery of valuable metals and waste heat from copper slag. Zongliang Zuo, ... Xiaoqing Lin, in Fuel Processing Technology, 2022. 4 Copper slag as a material resource 4.1 Construction material. Research on the comprehensive utilization of copper slag has been conducted based on the traditional water-quenching method. Copper slag is a type of dense, …
The copper slag produced by the smelting industry contains valuable metals like Cu, Fe, Zn, Pb, Co, and Ni, along with harmful components like As, Hg, Bi, and Sb. However, over 80% of global copper slag is discarded without proper disposal, wasting valuable metals and harming the environment (Phiri et al., 2022). While some copper slag has been ...
The treatment of large amounts of copper slag is an unavoidable issue resulting from the high demand for copper during the global transition to a sustainable development path. Metal-rich copper slag might serve as a potential source of metals through secondary recovery. In this study, two copper slags (CS1 and CS2) with different metallurgical properties were …
Former slag disposal methods did not consider environmental safety carefully enough, which led to contamination of soils located in the vicinity of slag heaps and smelters (see [3] for a …
Copper slag is mainly used for surface blast-cleaning. Abrasive blasting is used to clean and shape the surface of metal, stone, concrete and other materials. In this process, a stream of abrasive grains called grit are propelled toward the workpiece. Copper slag is just one of many different materials that may be used as abrasive grit.
The aim of this study was to evaluate the feasibility of (bio)hydrometallurgical methods for metal extraction from historical copper slags. Two types of slags (amorphous slag—AS, and crystalline slag—CS) were subjected to 24 to 48 h of leaching with: (i) Sulfuric acid at 0.1, 0.5, and 1 M concentrations at 1%, 5%, and 10% pulp densities (PDs); and (ii) …
Although some scientists have shown that the contaminants extracted from composite cement containing copper slag and copper slag do not exceed the limit, these investigations are limited only to ...
A Review Paper on Utilization of Copper Slag & Hypo Sludge as Alternative Material in Concrete Prem Raj 1, Afzal Khan 2 1PG Scholar, ... Movements of Hazardous Wastes and their Disposal described copper slag as a non-hazardous material, based on which its use was not seen as a threat to the environment. Due to the fact that copper slag is
Ferrous-calcium-silicate (commonly known as FCS) slags are used in the valuable metal recycling from urban ores through both primary and secondary copper smelting processes.
Waste recycling and reuse is an important component of sustainability. Extensive research is being conducted to address this issue by incorporating industrial by-product such as steel slag, copper ...
Since practically mined ores contain only 0.65 % Cu [2] and the purity is declining over the years [1,2], 752 MT of copper slag was produced worldwide during the period 1999-2019 with 38 MT ...
Copper slag is used as an abrasive in shot blasting to prepare steel surfaces for painting. The widespread use of lead and other heavy metals in protective paints [1] increases heavy metals in used slag, which is classified as a solid/hazardous waste. Landfill disposal of copper slag is not feasible since a few hundred tonnes are produced per year per factory; …
Waste recycling and reuse is an important component of sustainability. Extensive research is being conducted to address this issue by incorporating industrial by-product such as steel slag, copper slag, fly ash, ferro-chrome slag, and so on into the construction industry. Steel slag, which is mostly calcium carbonate, is created as a by-product of the steel oxidation …
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 …
The shortage of waste landfill space for waste disposal and the high demand for fill materials for land reclamation projects in Singapore have prompted a study on the feasibility of using spent copper slag as fill material in land reclamation. The physical and …
Therefore, it is very important to collect soot volatilized from the copper slag in the molten state to reduce environmental pollution. The mass of the reduction slag, ingot iron, carbon, and volatiles were obtained. The mass percentages of copper slag, lignite, and CaO before reduction were 314.60, 52.61, and 93.92 g, respectively.
By taking into account that the environmental characterization of the as-received copper slag did not allow its disposal in landfills without prior treatment, chemical and biological leaching were tested for the recovery of metals. Pre-treatment with acids, namely HNO3 and H2SO4, resulted in the extraction of several target metals and the ...
Ebonygrit is a disposable high-density blasting slag made from a by-product of copper production. Ebonygrit distinguishes from light-weight blasting slag, due to its high density property. Typically, the majority of its composition is iron oxide and silicon dioxide, formed when molten slag is quenched in cold water. This cooling process ...
This work proposes an environmentally safe and economically feasible method of waste copper-nickel production slag utilization (Kola Mining-Metallurgical Company, Nornickel, Kola Peninsula, Russia).
The production of copper bears both viable product and by product know as slag which is a challenge to dispose and poses a problem to the environment. BCL holds copper slag is seen as waste which is iron - opulent containing heavy metals which can seep into ground water and affect environment. These metal
A large proportion of the copper slags are commonly throwed at the slag disposal pit, which means that a huge space is required for dumping or disposing such large amounts of slag ( Chen et al., 2012). In addition, the non-protected slags will easily cause an environmental risk because they contain increased concentrations of hazardous elements ...
Copper slag is the main by-product of the pyrometallurgical process of copper, and more than 50 million tonnes of copper slag was generated in 2020 (Prem et al ... copper slag is mostly thrown directly into slag disposal pits without treatments, allowing the leaching of heavy metals, thereby leading to severe environmental issues (Guo et al., ...
showed that 1 ton of historical copper slag contains metals valued at $47 and $135 for crystalline and amorphous slag, respectively, suggesting that secondary processing of such materials can ... Some studies have also pointed out that improper slag disposal may cause serious ecological problems. For example, the study of Kasemodel et al. (2019 ...
The use of copper slag as a pozzolanic material for a partial substitute for ordinary Portland cement and its effects on the hydration reactions and properties of mortar and concrete have been reported in several publications (Al-Jabri et al., 2006, Taha et al., 2007, Malhotra, 1993, Tixier et al., 1997, Ariño and Mobasher, 1999, Douglas and Mainwaring, 1986, Deja and …
Copper smelting slag is a significant potential resource for cobalt and copper. The recovery of copper and cobalt from copper slag could significantly augment the supply of these metals, which are essential to facilitating the transition to green energy while simultaneously addressing environmental concerns regarding slag disposal. However, the complex mineral …