Novel fluxing strategy of copper matte smelting and trace metals in E-Waste recycling

Article Metallurgy & Metallurgical Engineering

Investigation on the Matte/Slag/Spinel/Gas Equilibria in the Cu-Fe-O-S-SiO2-(CaO, Al2O3) system at 1250 °C and pSO2 of 0.25 atm

Min Chen et al.

Summary: This study improves the experimental thermodynamic data on the equilibrium system of copper matte-slag-spinel-gas by investigating the equilibrium-phase relations between copper mattes and spinel-saturated iron silicate slags.

MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW (2023)

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Article Materials Science, Multidisciplinary

Measurement of Minor Element Distributions in Complex Copper Converting Slags Using Quantitative Microanalysis Techniques

Jiang Chen et al.

Summary: The distribution of minor elements in industrial copper converting slag samples was determined using a combination of EPMA and LA-ICP-MS methods. The results showed good consistency with literature data and demonstrated that accurate distributions of minor elements can be obtained by direct measurement of plant samples. The advantages and limitations of using microanalysis techniques for industry slag assay were also discussed.

JOM (2022)

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Article Thermodynamics

An experimental study on the phase equilibria of FeOx-saturated iron silicate slags and metallic copper alloys at 1200-1300?C

Min Chen et al.

Summary: The equilibrium phase relations between metallic copper alloys and magnetite/wustite-saturated iron silicate slags were investigated. The experimental results were compared with data from the literature and thermodynamic assessment to improve copper matte and black copper converting processes.

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY (2022)

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Review Engineering, Chemical

The potential for copper slag waste as a resource for a circular economy: A review - Part I

Tina Chanda Phiri et al.

Summary: The mining industry faces challenges such as depletion of high-grade deposits, high energy cost for metal production, and environmental concerns associated with mining waste disposal. Copper slag, a major mining waste, is causing growing concern due to its large volumes and waste of valuable metals. Recycling and repurposing of copper slag using innovative technologies can create a resource for a circular economy, addressing these challenges and improving metal production and environmental impact.

MINERALS ENGINEERING (2022)

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Article Engineering, Environmental

Mineralogical and morphological factors affecting the separation of copper and arsenic in flash copper smelting slag flotation beneficiation process

Huihui Zhou et al.

Summary: The separation of copper and arsenic has always been a major issue in the copper slag flotation process, with the presence of arsenic-copper alloys increasing the difficulty of separation, requiring finer grinding. Arsenic is oxidized into arsenate compounds during the process, while the transformation of copper and arsenic speciation affects the selectivity of separation. The study also highlights the risks of heavy metals in FSF slag and its flotation concentrate, emphasizing the need for cautious handling and utilization.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Engineering, Chemical

Handling trace elements in WEEE recycling through copper smelting-an experimental and thermodynamic study

Min Chen et al.

Summary: The study investigates the distribution of trace elements between copper alloy and slags during the recycling process of waste electrical and electronic equipment (WEEE). The results show that the distribution coefficients of all investigated trace elements between copper alloy and slag increase with decreasing oxygen partial pressure and increasing temperature.

MINERALS ENGINEERING (2021)

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Review Engineering, Chemical

The potential for copper slag waste as a resource for a circular economy: A review-Part II

Tina Chanda Phiri et al.

Summary: This paper reviews the potential of copper slag as a resource for cobalt and copper metals in a circular economy, discussing its chemical and mineralogical characteristics. The diverse processing strategies for metal recovery from copper slag are presented, showing benefits such as increasing critical metal supply and reducing environmental harm in the concrete industry.

MINERALS ENGINEERING (2021)

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Article Materials Science, Multidisciplinary

Precious Metal Distributions Between Copper Matte and Slag at High PSO2 in WEEE Reprocessing

Min Chen et al.

Summary: The distribution of precious metals between copper matte and slag was studied at 1300 degrees C and P-SO2 = 0.5 atm. Concentrations of precious metals in matte and slag were analyzed, showing the effects of P-SO2 and selected slag modifiers on precious metal distributions. These results provide experimental thermodynamic data for pyrometallurgical reprocessing of electronic waste via copper smelting processes.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2021)

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Review Green & Sustainable Science & Technology

Simulation of Slag-Matte/Metal Equilibria for Complex and Low-Grade Raw Materials

Pekka Taskinen et al.

Summary: Depleting and increasingly complex mineral resources present challenges for metal production, particularly in the control of iron oxide fluxing in the raw material basis of non-ferrous metals. The targeted metal values as minority components in the ores lead to more complex slag compositions in smelting furnaces.

SUSTAINABILITY (2021)

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Article Environmental Sciences

Study of the micromorphology and health risks of arsenic in copper smelting slag tailings for safe resource utilization

Liqun Zhang et al.

Summary: The study on slag tailings revealed the presence of arsenic in the form of maghemite and fayalite, with uneven distribution of arsenic-bearing minerals. The evaluation assessed the health risks to children exposed to the tailings, finding no harm to their health, but identified a potential higher hazard index with longer activity time of workers in the tailing workshop. Despite the certain bioavailability of arsenic in the slag tailings, it was not found to adversely impact human health.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2021)

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Article Materials Science, Multidisciplinary

Reaction Sequences in Flash Smelting and Converting Furnaces: An In-depth View

Pekka Taskinen et al.

Summary: Flash smelting and flash converting are mature technologies in copper and nickel sulfide smelting, requiring skills in furnace design, suspension oxidation, heat flux, and overall energy balance. The scientific literature lacks a comprehensive understanding of the connection between sulfide oxidation, smelting processes, and off-gas chemistry in these operations.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2021)

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Article Green & Sustainable Science & Technology

A Study on Reduction of Copper Smelting Slag by Carbon for Recycling into Metal Values and Cement Raw Material

Jei-Pil Wang et al.

SUSTAINABILITY (2020)

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Article Materials Science, Multidisciplinary

Recovery of Precious Metals (Au, Ag, Pt, and Pd) from Urban Mining Through Copper Smelting

Min Chen et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2020)

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Article Materials Science, Multidisciplinary

Experimental Study on the Phase Equilibrium of Copper Matte and Silica-Saturated FeOx-SiO2-Based Slags in Pyrometallurgical WEEE Processing

Min Chen et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2020)

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Article Engineering, Chemical

Reuse of copper slag in high-strength building ceramics containing spodumene tailings as fluxing agent

Patrick N. Lemougna et al.

MINERALS ENGINEERING (2020)

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Article Materials Science, Multidisciplinary

Equilibrium of Copper Matte and Silica-Saturated Iron Silicate Slags at 1300 degrees C and P-SO2 of 0.5 atm

Min Chen et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2020)

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Article Materials Science, Multidisciplinary

Relationship between copper content of slag and matte in the SKS copper smelting process

Qin-meng Wang et al.

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS (2019)

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Article Thermodynamics

Combined experimental and thermodynamic modelling investigation of the distribution of antimony and tin between phases in the Cu-Fe-O-S-Si system

Denis Shishin et al.

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY (2019)

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Article Green & Sustainable Science & Technology

Economic and environmental benefits of recovery networks for WEEE in Europe

Lukas Messmann et al.

JOURNAL OF CLEANER PRODUCTION (2019)

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Article Materials Science, Multidisciplinary

Behavior of Ga, In, Sn, and Te in Copper Matte Smelting

Dmitry Sukhomlinov et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2019)

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Review Chemistry, Physical

Metal losses in pyrometallurgical operations - A review

Inge Bellemans et al.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2018)

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Article Materials Science, Multidisciplinary

Evolution of Size and Chemical Composition of Copper Concentrate Particles Oxidized Under Simulated Flash Smelting Conditions

Manuel Perez-Tello et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2018)

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Article Engineering, Environmental

Recoveries of rare elements Ga, Ge, In and Sn from waste electric and electronic equipment through secondary copper smelting

Katri Avarmaa et al.

WASTE MANAGEMENT (2018)

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Article Multidisciplinary Sciences

An Innovated Application of Reutilize Copper Smelter Slag for Cement-based Electromagnetic Interference Composites

Yong Fan et al.

SCIENTIFIC REPORTS (2018)

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Article Environmental Sciences

WEEE management in a circular economy perspective: an overview

A. Cesaro et al.

GLOBAL NEST JOURNAL (2018)

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Article Green & Sustainable Science & Technology

Large-Scale WEEE Recycling Integrated in an Ore-Based Cu-Extraction System

Andreas Lennartsson et al.

JOURNAL OF SUSTAINABLE METALLURGY (2018)

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Article Green & Sustainable Science & Technology

Metal Droplet Entrainment by Solid Particles in Slags: An Experimental Approach

Inge Bellemans et al.

JOURNAL OF SUSTAINABLE METALLURGY (2018)

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Article Materials Science, Multidisciplinary

MTDATA and the Prediction of Phase Equilibria in Oxide Systems: 30 Years of Industrial Collaboration

John Gisby et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2017)

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Article Engineering, Chemical

Improving urban mining practices for optimal recovery of resources from e-waste

Fiseha Tesfaye et al.

MINERALS ENGINEERING (2017)

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Article Engineering, Environmental

Recovery of tin from metal powders of waste printed circuit boards

Tianzu Yang et al.

WASTE MANAGEMENT (2017)

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Article Green & Sustainable Science & Technology

Study of the Effect of Spinel Composition on Metallic Copper Losses in Slags

Evelien De Wilde et al.

JOURNAL OF SUSTAINABLE METALLURGY (2017)

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Article Materials Science, Multidisciplinary

Distribution of Precious Metals (Ag, Au, Pd, Pt, and Rh) Between Copper Matte and Iron Silicate Slag

Katri Avarmaa et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2016)

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Review Green & Sustainable Science & Technology

A review of current progress of recycling technologies for metals from waste electrical and electronic equipment

Lingen Zhang et al.

JOURNAL OF CLEANER PRODUCTION (2016)

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Review Green & Sustainable Science & Technology

Thermodynamics data of valuable elements relevant to e-waste processing through primary and secondary copper production: a review

M. A. H. Shuva et al.

JOURNAL OF CLEANER PRODUCTION (2016)

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Article Materials Science, Multidisciplinary

Origin and sedimentation of Cu-droplets sticking to spinel solids in pyrometallurgical slags

E. De Wilde et al.

MATERIALS SCIENCE AND TECHNOLOGY (2016)

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Article Materials Science, Multidisciplinary

Investigation of High-Temperature Slag/Copper/Spinel Interactions

Evelien De Wilde et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2016)

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Article Metallurgy & Metallurgical Engineering

MICROSTRUCTURE CHARACTERISATION OF FREEZE LININGS FORMED IN A COPPER SLAG CLEANING SLAG

J. Jansson et al.

JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY (2015)

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Review Environmental Sciences

Use of waste copper slag, a sustainable material

Krishna Murari et al.

JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT (2015)

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Article Green & Sustainable Science & Technology

Equilibrium Distribution of Precious Metals Between Slag and Copper Matte at 1250-1350 °C

Katri Avarmaa et al.

JOURNAL OF SUSTAINABLE METALLURGY (2015)

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Article Mining & Mineral Processing

Microstructure and formation kinetics of a freeze lining in an industrial copper FSF slag

P. Taskinen et al.

TRANSACTIONS OF THE INSTITUTIONS OF MINING AND METALLURGY SECTION C-MINERAL PROCESSING AND EXTRACTIVE METALLURGY (2011)

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Article Mining & Mineral Processing

Direct-to-blister smelting of copper concentrates: the slag fluxing chemistry

P. Taskinen

TRANSACTIONS OF THE INSTITUTIONS OF MINING AND METALLURGY SECTION C-MINERAL PROCESSING AND EXTRACTIVE METALLURGY (2011)

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Article Materials Science, Multidisciplinary

Investigation of Liquidus Temperatures and Phase Equilibria of Copper Smelting Slags in the FeO-Fe2O3-SiO2-CaO-MgO-Al2O3 System at PO2 10-8 atm

Hector M. Henao et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2010)

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Editorial Material Multidisciplinary Sciences

The Electronics Revolution: From E-Wonderland to E-Wasteland

Oladele A. Ogunseitan et al.

SCIENCE (2009)

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Review Engineering, Environmental

Utilization of copper slag in cement and concrete

Caijun Shi et al.

RESOURCES CONSERVATION AND RECYCLING (2008)

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Article Engineering, Environmental

Mechanical recycling of waste electric and electronic equipment: a review

JR Cui et al.

JOURNAL OF HAZARDOUS MATERIALS (2003)

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Review Engineering, Environmental

Characteristics and utilisation of copper slag - a review

B Gorai et al.

RESOURCES CONSERVATION AND RECYCLING (2003)

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Article Engineering, Environmental

An overview of recovery of metals from slags

HT Shen et al.

WASTE MANAGEMENT (2003)

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Article Thermodynamics

MTDATA - Thermodynamic and phase equilibrium software from the National Physical Laboratory

RH Davies et al.

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY (2002)

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Article Materials Science, Multidisciplinary

Phase equilibrium and minor element distribution between FeOx-SiO2-MgO-based slag and Cu2S-FeS Matte at 1573 K under high partial pressures of SO2

G Roghani et al.

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2000)

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Novel fluxing strategy of copper matte smelting and trace metals in E-Waste recycling

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