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copper slag recycling plants china doll

Comprehensive review on metallurgical recycling and

Suggested methods for metallurgical recycling from the copper slag mainly include pyrometallurgical processes (e.g. reduction roasting, followed by This paper presents a review of copper slag as a potential resource for cobalt and copper metals for a circular economy. An overview of the chemical and The potential for copper slag waste as a resource for a circular

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A Review of Comprehensive Utilization of Copper Slag of China

Abstract With the development of the economy and the increasing annual output of copper, the treatment of copper slagCopper slag has become a more and 1. Strategic Patterns Taking Shape After nearly 70 years of development, China’s copper recycling industry has grown in size and strength, transforming from labor-intensive Circular Copper Recycling in China: Current Practices and Future

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The potential for copper slag waste as a resource for a circular

At present, the main approaches to slag processing can be distinguished: pyrometallurgical, hydrometallurgical (bacterial and chemical leaching, flotation) and The goal is to assess the environmental impacts of copper production in China. The scope is cradle-to-gate production of 1 kg refined copper in China by Assessing the future environmental impacts of copper

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A Review of Comprehensive Utilization of Copper Slag of China

In this paper, the properties, research status, and valuable metal recovery of copper slag in China are reviewed, and the recovery status of copper and iron from Abstract. Copper slag waste has continued to cause increasing concerns due to the huge volumes being produced annually worldwide. This paper presents a The potential for copper slag waste as a resource for a

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The potential for copper slag waste as a resource for a circular

The implementation of stringent environmental legislation, the development of energy efficient technologies, the increasing demand for critical metals, and the Extracting valuable metal is a common way of recycling copper pyrometallurgical solid waste (CPSW). However, its environmental effects are still Life cycle assessment of valuable metal extraction from copper

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Life cycle assessment of valuable metal extraction from copper

Extracting valuable metal is a common way of recycling copper pyrometallurgical solid waste (CPSW). However, its environmental effects are still unclear. This paper adopts a cradle-to-gate life cycle assessment to assess the impacts of recycling three main types of CPSW (smelting slag, copper ash, and anode slime).Slag 1: Flash smelting slag from Almalyk copper-smelting plant, Uzbekistan (Starodub et al., 2016); Slag 2: cleaning of electric furnace slag from Tongling Non-ferrous Metals Group Holding Co., Ltd, China (Guo et al., 2016b); Slag 3: Converter slag from Tongling Non-ferrous Metals Group Holding Co., Ltd, China (Guo et al., Comprehensive review on metallurgical recycling and cleaning of copper slag

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Comprehensive Utilization of Copper Slag in a Pyro Springer

Copper slag used in this study was cooled by water quenching, from a copper smelting plant, China Minmetals Corporation. The copper slag was first crushed and ground into −200 mesh powder before the experiment. XRF-1800 X-ray Fluorescence spectrometry (XRF) (Shimadzu, Japan) chemical analysis result is shown in Table 1.An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich converter slag by organic acids. In the leaching experiments, the effects of organic acid concentrations, pulp density, temperature, and time were investigated. Optimum recovery of 99.1% Cu, Minerals Free Full-Text Processing of Waste Copper Converter Slag

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Comprehensive review on metallurgical recycling and cleaning of copper slag

Attempts have also been made by several researchers to prepare copper slag-derived ceramics [22][23][24][25]. However, this recycling method causes a waste of valuable metals since copper slagThe method of claim 5 in which heating copper slag to between 1200° F. and 2600° F. comprises providing a preheat zone, providing a melting zone, and providing a crystallization zone, bringing the slag up to a temperature between 1200 and 2600° F. in the preheat zone, heating the copper slag to between 2300 and 2800° F. in the melting zone for three to Copper slag reclamation and recycling method Google Patents

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Materials Free Full-Text Environmental Benefit Assessment of

This study aimed to investigate the environmental impact of modified granulated copper slag (MGCS) utilization in blended cement production at a representative cement plant in China. Sensitivity analysis was performed on the substance inputs, and the life cycle impact assessment (LCIA) model was applied. A detailed comparative analysis The copper phase in copper smelting slag is mainly copper sulfide, accounting for more than 60% of the total copper, and followed by copper oxide and copper metal. The iron phase is mainly composed of fayalite and magnetite, the sum of which accounts for more than 80% of the total iron distribution rate, in which the distribution rate of fayalite is Element Distribution and Migration Behavior in the Copper Slag

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Sustainability Free Full-Text Sustainable Utilization of Steel Slag

Steel slag is a large amount of residual material produced in the process of steel manufacturing. With the requirements of sustainable development in China, the utilization of steel slag has become a hot issue. Through an in-depth study on steel slag, it is apparent that it has been widely used in various fields in recent years. The resource Xue, Li, and Qin (2016) studied the flotation of slowly cooled CS from the Ausmelt furnace. These researchers reported that, by using butyl xanthate as collector, a concentrate with copper grade of 16,11% and copper recovery of 69,90% was achieved. The copper grade on tailings was only 0,2%.Copper Recovery Through Smelter Slag Flotation in Atacama

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Progress and trend of bulk utilization technology of metallurgical

In China, the annual discharge of steel slag, red mud, copper slag, and most ferroalloy slag has reached 10–100 million tons; these slags are difficult to be resued due to poor utilization in the fields of cement, concrete, or road pavement. The difficult reusing of these wastes requires new theory and technology, particularly due to the huge Practically all of the metals contained in the slag can be recovered. Go to recycling process. The special feature of LEGRAN’s metal slag processing system at the Lippe Plant is the way the material is treated. The slag and spent refractories need to be pulverised before they can be processed and this job is carried out by a rod and ball millMetal slag processing // REMONDIS´ Lippe Plant

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Stepwise Utilization Process to Recover Valuable Components from Copper

Waste copper slag is a typical hazardous solid waste containing a variety of valuable elements and has not been effectively disposed of so far. In this paper, a stepwise extraction process was proposed to recover valuable elements (copper, iron, lead and zinc) from waste copper slag. The specific procedures are as follows: (1) A flotation Slags from the ferrous and nonferrous metallurgical industries have been used to treat toxic contaminants in water and wastewater. Using slag as a recycling or renewable resource rather than a waste product has environmental and economic benefits. Recycled smelter slags can be used in both in situ and ex situ treatment. However, their Processes Free Full-Text Recycled Smelter Slags for In Situ

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Cleaner recycling of iron from waste copper slag by using

To decrease the use of fossil-based reductants, walnut shell char with a high content of fixed carbon has been explored as a green reductant in the recycling of copper slag, as reported by Zhou etwell as a characterization of copper slag, with the aim of reusing and recycling the slag to beneﬁt the environment and economy . Recycling methods are considered an attractive technological pathwayEnvironmental and Socioeconomic Impact of Copper Slag-A

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Primary Copper Smelter and Refinery as a Recycling Plant—A

The refinery production of copper in 2015 was estimated to be 22.9 million tonnes [].In 2014, the refinery production was 22.2 Mt, of which approximately 14.2 Mt was primary electrorefined and fire-refined and 4.1 Mt electrowon, and secondary production was 3.9 Mt [].Based on U.S. Geological Survey (USGS) dataseries [] during 1990–2011, the Nickel smelting slag contains valuable metals including nickel and copper. Failure to recycle these metals wastes resources, and disposal of nickel slag in stockpiles results in environmental pollution. Nickel slag recycling is important, and metals can be recovered from slag by flotation. However, considering the complex forms in Recovery of Valuable Metals from Nickel Smelting Slag Based on

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A new method of full resource utilization of copper slag

Flotation is the dominant beneficiation method at present, which mainly aims at utilizing the residual copper in the slag (Zhou et al., 2021; Piatak and Parsons, 2015).However, in order to float out copper sulfide encapsulated in fayalite, a large amount of energy is required to fully grind the copper slag, while other valuable elements are not

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