Environmental and Socioeconomic Impact of Copper Slag…
Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other elements which include iron, cobalt, silica, and alumina. Slag is a major problem in the metallurgical industries as it is dumped into heaps which have accumulated into millions …
Control of Copper Content in Flash Smelting Slag and the
To determine slag properties and the factors influencing these properties for optimization of operating conditions in the copper flash smelting process, the composition and microstructures of the quenched smelting and converting slags have been analyzed. Thermodynamic software FactSage 8.2 has been used to investigate the effects of matte …
Mineralogical and morphological factors affecting the separation …
Copper slags can hardly be utilized because the fayalite in it produces silica gel during the dissolution process. This work proposes a new process on sulfuric acid treatment of copper slag ...
Copper slag: The leaching behavior of heavy metals and its
1. Introduction. Copper slag (CS) is a type of solid waste associated with the production of the copper metal. Approximately 2–3 tons of CS are generated when producing 1 ton of copper metal [1], [2].The annual production of CS is approximately 40 million tons worldwide [2].During the previous decades, large amounts of CS have been …
Life Cycle Assessment of Concrete Using Copper Slag as a …
This assumption led to the assumption that the CS system includes the process of copper manufacturing, as slag is inadvertently generated during the copper smelting process. ... Furthermore, the emissions of copper slag in these categories can also be considered to be relatively minimal, having a contribution of only 1.99% at most …
The potential for copper slag waste as a resource for a …
The waste product of the smelting process would be copper slag (CS). Copper slag (CS), with an annual global production rate of more than 37 million tonnes, can be used for soil stabilization [31 ...
A novel slag cleaning method to recover copper from molten copper …
To recover copper from copper slag, a novel slag cleaning method was proposed. The thermodynamics and binary phase diagram of FeO–SiO 2 were calculated first. Then, the effects of experimental parameters on the reduction of Fe 3 O 4, recovery of copper, and slag cleaning mechanism were investigated.The results showed that the …
SUSTAINABLE CONSTRUCTION MATERIAL
3) Copper slag can be used as a filling material in. construction work due to its higher density. 4) Also, copper slag can be used in construction of road. as a replacement material of aggregate ...
Study on Mechanism of Oxidation Modification of Copper Slag
Mineralogical phase transform of copper slag during oxidation modification process has been investigated with the goal to provide valuable information for the recovery of copper and iron.
Research on Selective Reducing Impoverishment Process of Copper Slag …
The selective reduction impoverishment of slag from copper smelting with addition of charcoal powder and stirring of inert gas is investigated by the aid of metallurgical analysis, SEM and EDX. The results show that the copper content in the slag can be reduced from 5 % to 0.35 % by the selective reduction impoverishment process. The contents of Fe3O4 …
Raw Copper Slag for Sale
However, back to the copper slag process, actually copper refineries produce two to three times this granulate waster for each one unit of copper that is purified after melting the rock that has it embedded. Copper incrustations may require more than one melting process before the metal reaches the purity grade required for its ...
Sustainable and Comprehensive Utilization of Copper …
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 was landlled [4 ]. In order to minimize the amount of waste it is necessary to make more use of copper slag as a …
Study on thermal analysis kinetics of copper slag …
The practical steps are as follows: Firstly, samples of the copper slag and reducing agent C were weighed with C/O ratios of 0.6, 0.8, 1, 1.2 and 1.4, respectively, and then homogeneously mixed. Thermal analysis experiments were performed in a high-purity aluminum crucible to study the efect of C/O on reduc-tion.
Apparent Viscosity Evolution of Copper Converter Slag …
Copper smelting slag is a useful secondary resource containing high iron and copper, which can be utilized to prepare crude Fe-Cu alloy by a direct reduction–magnetic separation process for ...
Introduction of Matte Droplets in Copper Smelting Slag
Abstract. Smelting is an important process in copper production to produce matte and slag. The slag, containing about 1–12% Cu, can be further processed to recover the copper contaminated, but recycle of the slag concentrate reduces overall productivity and efficiency of the operation. The best solution is to minimize the copper …
Copper Mining and Processing: Processing Copper Ores
Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and …
Advances in recovery of valuable metals and waste heat from copper slag …
During the water-quenching process of the copper slag, approximately 10 tons of circulating water and 1 ton of fresh water are required for processing 1 ton of slag, and the heat of the quenching water cannot be recovered completely. ... Copper slag can be used as an Fe-adjusting material in construction, a cement additive, and asphalt …
A Review of Comprehensive Utilization of Copper Slag of …
Copper slag can mix and ground with gypsum and cement clinker to produce cement. This process uses a large amount of copper slag (about 60–70% of the total cement raw materials), and energy consumption can be reduced by 50%. ... According to different copper slag depletion process requirements, the total addition ratio of depleting agent …
Slag Driveway Pros and Cons
The cooling results in crystallized rock-like slag. There can be variability in the size of the slag depending on the iron production process. The water absorption can be as high as 6% but lower than that of pelletized blast furnace slag. Granulated Blast Furnace Slag:- This slag has glassy, granular particles. These granulated particles are ...
A review of metallurgical slags as catalysts in advanced …
Copper slag catalyzed H 2 O 2 decomposition into ·OH to remove phenol and UV light accelerate the catalytic oxidation process. The potential of copper slag as a catalyst for eliminating the pesticide tendazole using the heterogeneous photo-Fenton process was investigated under natural solar irradiation at a pH close to neutral (García ...
Efficient and safe disposition of arsenic by
Although each pyrometallurgical or hydrometallurgical process can dislodge a portion of arsenic, the smelting process is still the prime procedure for arsenic removal (Wang et al., 2017). No matter which kind of smelting furnace is used, arsenic can be dispersed into copper matte, flue gas and copper slag (Yang et al., 2017).
Sulfuric acid leaching for capturing value from copper rich converter slag
Sulfuric acid leaching of copper rich slag with the optimized parameters can provide a copper rich process solution with iron as the main impurity metal. The solution can provide an attractive feed for integration into the industrial primary copper production with acceptable low Ni, As and Pb levels (43.6 g/L Cu, 9.4 g/L Fe, 0.3 g/L Ni, 0.1 g/L ...
An Efficient Hydrometallurgical Process for Extracting
Copper telluride slag from copper smelting process is an important source of tellurium (Te). In this work, an efficient and economical hydrometallurgical process for extracting Te from copper telluride slag was proposed. First, H2SO4 and NaClO3 were demonstrated to be effective for separating Te and Cu, and the leaching efficiency of …
A new method of full resource utilization of copper slag
Sarfo et al. (2017) carried out carbothermal reduction process of copper slag (from the United States) by mixing 12.5% carbon with copper slag and reacting at 1420 °C for 0.75 h. The initial copper slag is reduced to low-grade pig iron with the recovery efficiency of up to 90% (Sarfo et al., 2017). However, non-ferrous metal elements can …
Characteristics and environmental aspects of slag: A review
Non-ferrous ores can also be processed by leaching (hydrometallurgy) and/or reduction (electrometallurgy) methods such as shown in Fig. 4 for Zn ores; ... Copper slag commonly contains As, Co, Cu, Pb, and Zn, and locally Cd that exceeds one or both of the soil screening levels (Fig. 13).
Copper Slag as a Source of Iron: An Overview | SpringerLink
Due to its high Fe content, copper slag can be a Fe-adjusting material in cement clinker production. However, before utilizing Cu slag as a material resource, it is crucial to perform simultaneous metal extraction. Download conference paper PDF. ... During the metallurgical recycling and cleaner treatment process for copper slag, …
Can copper slag be reused for sand blasting?
The British standard for size of copper slag abrasive is typically in the range of 0.2mm to 2.4mm. ... or a lead scavenger like calcium or magnesium to react with the lead and form a slag that can ...
Energy conservation and emission reduction through …
The hot copper slag depletion process can be principally delineated into three stages. (1) Slag modification: The first step involves the adjustment of the slag composition by regulating the sulfur potential of the system to facilitate mineral phase transformations, consequently reducing the viscosity of the modified slag.
Recovery of metal values from copper slag and reuse of …
Copper slag was characterized and processed. The pyro-metallurgical processing prospects to generate utilizable materials were arrived at through rigorous thermodynamic analysis. Carbothermal reduction at elevated temperature (near 1440°C) helped recover a majority of the metal values (e.g., Fe, Cu and Mo) into the iron-rich alloy product ...
Copper Slag
Copper Slag is a by-product generated during the smelting and refining process of copper. It is a granulated material with similar properties to sand, and it has various applications in the construction industry. Here are some of the common uses of copper slag in construction: Concrete production: Copper slag can be used as a partial ...