Copper Slag Recycling
Comprehensive review on metallurgical recycling and …
In this review, the generation mechanism, and chemical/physical characteristics of copper slag are introduced, and then the primary and lately developed processes for their …
A Study on Reduction of Copper Smelting Slag by …
Some studies have attempted to recover metal values from copper slag. This research was intended to recover ferrous alloy contained Cu, a raw material of zinc, from copper slag, and produce reformed slag such as …
Characteristics and utilisation of copper slag—a review
Nearly 2.2 to 3.0 tons of copper slag are generated for every one-tone production of copper, leading to the generation of 4.5 million tons of copper slag very year; as of now, a total of 50 ...
Comprehensive review on metallurgical recycling and cleaning of copper slag
To address these challenges, recycling and repurposing of copper slag waste using innovative technologies should be considered, creating a resource for a circular economy. This …
A Review of Comprehensive Utilization of Copper Slag of …
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...
Advances in recovery of valuable metals and waste heat from copper slag
However, slag recycling methods fail to effectively utilize the metals in copper slag, resulting in waste. Approximately 2.2 tons of Cu slag is estimated to be produced per ton of Cu [ 5, 7 ]. The global output of Cu slag in 2020 was estimated to be 35.2 million tons [ 8 ], which translates into significant metal wastage.
The potential for copper slag waste as a resource for a …
To address these challenges, recycling and repurposing of copper slag waste using innovative technologies should be considered, creating a resource for a circular economy. This paper presents a ...
Element migration from the copper smelting slag recycling …
A field experiment was conducted to study migration of the elements from the copper smelting slag recycling waste into high-moor peat and lawn grasses. The waste was obtained by crushing the cast slag (particle size 0.05 mm) followed by flotation extraction of copper concentrate. The waste was introduced into lime-neutralized peat in the ratio of 5%, …
Comprehensive review on metallurgical recycling and cleaning of copper slag
DOI: 10.1016/J.RNREC.2020.105366 Corpus ID: 233567866; Comprehensive review on metallurgical recycling and cleaning of copper slag @article{Tian2021ComprehensiveRO, title={Comprehensive review on metallurgical recycling and cleaning of copper slag}, author={Hongyu Tian and Guo Zhengqi and Jian Pan and De‐qing …
An Overview of Sustainable Solutions Towards Recycling of …
The recycling of copper smelter slag for the production of high-value-added products and its use in cement-based electromagnetic interference composites has been explored, addressing concerns about the overcapacity of the cement industry and the urgent need for alternative slag utilisation. Moreover, the marketable products derived from blast ...
ReMA sues Minnesota over copper recycling law
Recycling trade organization reportedly has sued the Minnesota Department of Commerce over its restrictive law on recycled copper sales. ... a lawsuit against the Minnesota Department of Commerce regarding a law it will enforce in 2025 involving the sale of copper for recycling. ... Harsco brands slag-content asphalt as SteelPhalt. Tenamec adds ...
Characterization, Concentration, and Speciation of Metal
The recovery of metals from copper slag, known as secondary metal recovery, not only maximizes the value of resources, but also responds to stable market demand . Nowadays, secondary metal recovery is an important research direction for copper slag utilization and recycling and has received increased attention in recent years [25,26].
The potential for copper slag waste as a resource for a …
To address these challenges, recycling and repurposing of copper slag waste using innovative technologies should be considered, creating a resource for a circular economy. This …
Recycling of brass melting slag through the high …
Brass melting slag is a valuable secondary resource for the recovery of copper and zinc. The hydrometallurgical recovery process of this material is a challenge, because of its limited dissolution in sulfuric acid. The present study aimed at studying a combined pyro-hydrometallurgical treatment processes involving high temperature oxidation and sulfuric acid …
Life Cycle Assessment of Concrete Using Copper Slag as a …
Cement, one of the main components of concrete, poses environmental risks, accounting for 7% of total global carbon emissions. To alleviate the environmental hazards related to cement manufacturing, supplementary cementitious materials (SCM) are employed to reduce the usage of cement in concrete. One SCM used is copper slag (CS). In this study, a life cycle …
Comprehensive review on metallurgical recycling and cleaning of copper slag
However, this recycling method causes a waste of valuable metals since copper slag contains abundant iron and copper [1,2, 5]. Besides, the ceramics obtained from copper slag usually show red or ...
Utilization of copper slag in cement and concrete
Copper slag is a by-product obtained during matte smelting and refining of copper. The common management options for copper slag are recycling, recovering of metal, production of value added products such as abrasive tools, roofing granules, cutting tools, abrasive, tiles, glass, road-base construction, railroad ballast, asphalt pavements.
The potential for copper slag waste as a resource for a …
To address these challenges, recycling and repurposing of copper slag waste using innovative technologies should be considered, creating a resource for a circular economy. This paper presents a review of copper slag production and its potential as a world resource for cobalt and copper metals. An overview of copper and cobalt production from ...
Use of waste copper slag, a sustainable material
The utilization of solid waste is the challenge for the civil and environmental engineers to utilize the waste from different industry to excel the sustainable development, and in the same time, it is matching with the cost concern of the present materials. Copper slag is a by-product obtained during smelting and refining of copper. The waste copper slag can be used …
Leaching behavior and occurrence of metal elements in copper slag…
Copper Slag (CS) is a solid waste produced during the industrial smelting of copper (Gorai et al., 2003).The current pyrometallurgical copper smelting process is mainly through the Ausmet furnace (Fig. 1); the furnace slag goes through the flotation process to obtain copper matter, yielding a composition of CS corresponding to 30–40 % of Fe, 15–20 % of Si, less than …
Turning waste into wealth: Synergistic recovery of metal from copper slag
The research from Central South University presents a significant advance in metal recycling technology, particularly for copper, lead, and zinc recovery from copper smelting slag. Using pyrite as a sulfurizing agent, this novel sulfurization-reduction technique facilitates the efficient extraction of these metals.
Environmental and Socioeconomic Impact of Copper Slag …
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 ...
High-valued and deep utilization technology of copper slag
The fayalite in copper slag transforms into metallic iron and sodium silicate salt in the activated reduction process, after the following water-leaching and magnetic separation, about 76% of silicon dissolves into the leaching solution and the metallic iron powders with a recovery rate higher than 90% is obtained. ... J. T. Zhao, "Recycling ...
Turning waste into wealth: Synergistic recovery of …
The research from Central South University presents a significant advance in metal recycling technology, particularly for copper, lead, and zinc recovery from copper smelting slag. Using pyrite as a sulfurizing agent, this …
Recycling of Stabilized Copper Slag Waste for Sustainable …
Copper slag is a voluminous solid waste byproduct from copper extraction, often underutilized and accumulated in deposits. This paper presents the details of a pilot study conducted to explore the use of copper slag in road embankment construction. Physical, chemical, and geotechnical characterization of copper slag with and without stabilization (pond …
Comprehensive review on metallurgical recycling and cleaning of copper slag
Currently, metallurgical recycling and further cleaning of copper slag is still not widely established, in spite of the progress in the management of copper slags in the past several decades. The primary purpose of the paper is to provide a critical review on the metallurgical processes available for recycling and further cleaning of copper slag.
Element mobility from the copper smelting slag recycling …
The copper smelting slag recycling waste was obtained by crushing the cast slag of the Sredneuralskiy Smelter ("technical sand") followed by flotation extraction of copper concentrate. The investigations were carried out in two forest types, distinguished according to the principles of the genetic forest typology, cowberry shrub pine forest ...
Copper Slag as a Source of Iron: An Overview
Additionally, demonstrated the potential of copper slag as a source of valuable metals, including iron, copper, and zinc, and proposed a method for separating and recycling these metals from dumped copper slag using microwave irradiation (Liao et al., 2016). These studies collectively underscore the potential of copper slag as a secondary source
Copper Slag as a Source of Iron: An Overview | SpringerLink
Additionally, demonstrated the potential of copper slag as a source of valuable metals, including iron, copper, and zinc, and proposed a method for separating and recycling these metals from dumped copper slag using microwave irradiation (Liao et al., 2016). These studies collectively underscore the potential of copper slag as a secondary ...
A new method of full resource utilization of copper slag
At present, there are three different treatment methods for copper slag, namely beneficiation, smelting and chemical extraction. We have briefly collated some previous work on metallurgical slag treatment in Table 1, listing the treatment method, the type of reagents added, and the recovery efficiency of valuable elements.Besides, some researchers focus on …
Synergistic environmental benefits from copper slag recycling …
This study applies life cycle assessment (LCA) to evaluate the environmental benefits of three copper slag recycling strategies. Building on the LCA results, we introduced a synergistic reduction index system that assesses the combined effects of pollution mitigation and carbon reduction. Findings indicate that utilizing recycled copper slag in ...
Problems, prospects and current trends of copper recycling …
This inert slag can also be used for land filling, for making of road and in construction works like embankment for rivers, etc., Converter slag (0.36 kg/kg of copper) produced from SWIL and slag (1.6 kg/kg of copper) from Birla copper (Sharma, 1998a, Sharma, 1998b) is granulated and sold out to the construction companies for road making, as ...
Waste to valuable resource: application of copper slag and steel slag
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 …
Characterization of Copper Slag | SpringerLink
Gorai B., Jana R.K., and Premchand, Characteristics and utilisation of copper slag—a review. Resources, Conservation and Recycling, 2003. 39(4): p. 299–313. Article Google Scholar Altundogan H.S., Boyrazli M., and Tumen F., A study on the sulphuric acid leaching of copper converter slag in the presence of dichromate.
The potential for copper slag waste as a resource for a …
Copper slag waste has been used to adjust iron during cement clinker production due to its high iron content (Huang, 2001). The main constituent of the copper slag used by Huang (2001) was vitreous ferrosilite (FeSiO 3) which has a low melting point and could be used to significantly reduce the calcination temperature for cement clinker production.
Comprehensive review on metallurgical recycling and …
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 …