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74 Results Found

  • Article
  • Open Access
4 Citations
2,377 Views
14 Pages

Intelligent System for Reducing Waste and Enhancing Efficiency in Copper Production Using Machine Learning

  • Bagdaulet Kenzhaliyev,
  • Timur Imankulov,
  • Aksultan Mukhanbet,
  • Sergey Kvyatkovskiy,
  • Maral Dyussebekova and
  • Nurdaulet Tasmurzayev

12 February 2025

The growing environmental impact of copper production necessitates innovative approaches for optimizing metallurgical processes and minimizing waste. This study addresses this challenge by leveraging advanced machine learning (ML) techniques to enhan...

  • Review
  • Open Access
6 Citations
3,729 Views
45 Pages

12 May 2025

The construction sector is heading towards more sustainable practices by focusing on the utilization of secondary materials previously considered waste. These include by-products generated in other industrial sectors, which are considered to be secon...

  • Article
  • Open Access
1 Citations
1,555 Views
19 Pages

22 May 2025

Aluminum recycling is a key pillar of sustainable metallurgy, protecting natural resources, reducing energy consumption by up to 15 times compared with primary aluminum production and significantly lowering the demand for raw materials. This article...

  • Feature Paper
  • Article
  • Open Access
10 Citations
3,899 Views
18 Pages

28 September 2021

Porous aluminum foams were successfully fabricated following the space-holder powder metallurgy method with a solar sintering stage. Al foams with porosities of 50, 60, and 70 vol.% were sintered in a low-cost Fresnel lens. Green parts were prepared...

  • Article
  • Open Access
11 Citations
3,247 Views
14 Pages

19 August 2020

Solar carbothermal reduction of volatile metal oxides represents a promising pyro-metallurgical pathway for the sustainable conversion of both metal oxides and sunlight into metal commodities and fuels in a single process. Nevertheless, there are sev...

  • Article
  • Open Access
12 Citations
2,637 Views
17 Pages

Upscaling Severe Torrefaction of Agricultural Residues to Produce Sustainable Reducing Agents for Non-Ferrous Metallurgy

  • Hary Demey,
  • Elvira Rodriguez-Alonso,
  • Elie Lacombe,
  • Maguelone Grateau,
  • Nicolas Jaricot,
  • André Chatroux,
  • Sebastien Thiery,
  • Muriel Marchand and
  • Thierry Melkior

26 November 2021

Torrefaction of almond shells and olive stones, which are typically considered agricultural waste in the southern regions of the European Union, was investigated in this work for application as reducing agents in the metallurgical industry. Four diff...

  • Review
  • Open Access
43 Citations
12,912 Views
25 Pages

30 August 2023

Greenhouse gas emissions are the primary root cause of anthropogenic climate change. The heterogeneity of industrial operations and the use of carbonaceous fossil fuels as raw materials makes it challenging to find effective solutions for reducing th...

  • Article
  • Open Access
21 Citations
4,116 Views
27 Pages

28 June 2024

A circular economy (CE) appears to be a crucial tool enabling the sustainable use of natural resources, which is also essential for achieving the Sustainable Development Agenda by 2030. Compared to the traditional linear economy policy based on the &...

  • Article
  • Open Access
6 Citations
1,768 Views
18 Pages

Carbon-Free Smelting of Ferrochrome Using FeAlSiCa Alloy

  • Amankeldy Akhmetov,
  • Zulfiadi Zulhan,
  • Zhadiger Sadyk,
  • Azamat Burumbayev,
  • Armat Zhakan,
  • Sultan Kabylkanov,
  • Ruslan Toleukadyr,
  • Zhalgas Saulebek,
  • Zhuldyz Ayaganova and
  • Yerbolat Makhambetov

2 June 2025

This study explored the feasibility of the carbon-free smelting of ferrochrome (FeCr) using a complex reducing agent—ferroaluminosilicalcium alloy (FeAlSiCa)—produced from industrial waste and ferrosilicochrome (FeSiCr) dust. Laboratory-s...

  • Article
  • Open Access
1 Citations
1,397 Views
13 Pages

Study of the Effect of Tin Addition in Aluminum–Copper Alloys Obtained from Elemental Powders

  • Pedro José Olendski Elias Junior,
  • Ederson Bitencourt das Neves,
  • Luciano Volcanoglo Biehl,
  • Ismael Cristofer Baierle,
  • Carlos Otávio Damas Martins and
  • Jorge Luis Braz Medeiros

19 May 2025

Powder metallurgy enables the production of composite materials, which are of great interest to different branches of the automotive, aerospace, and medical industries. This work investigated the sintering of an Al-xCu and Al-xCu-0.1Sn alloy, with co...

  • Article
  • Open Access
2 Citations
1,023 Views
17 Pages

Electric Arc Metallothermic Smelting of FeCr Using FeAlSiCa as a Reductant

  • Yerbolat Makhambetov,
  • Zhadiger Sadyk,
  • Armat Zhakan,
  • Azamat Burumbayev,
  • Sultan Kabylkanov,
  • Aibar Myrzagaliyev,
  • Dastan Aubakirov,
  • Natalya Lu and
  • Amankeldy Akhmetov

9 September 2025

This study investigates the use of the complex reductant FeAlSiCa as an alternative to the conventional FeSiCr in the EAF smelting of FeCr. The smelting process using FeAlSiCa is characterized by a stable furnace operation, active discharge of metal...

  • Feature Paper
  • Article
  • Open Access
14 Citations
5,408 Views
18 Pages

Recovery of Copper and Magnetite from Copper Slag Using Concentrated Solar Power (CSP)

  • Daniel Fernández-González,
  • Janusz Prazuch,
  • Íñigo Ruiz-Bustinza,
  • Carmen González-Gasca,
  • Cristian Gómez-Rodríguez and
  • Luis Felipe Verdeja

27 June 2021

On the one hand, copper slag is nowadays a waste in copper pyrometallurgy despite the significant quantities of iron (>40 wt. %) and copper (1 to 2 wt. %). On the other hand, solar energy, when properly concentrated, offers great potential in high...

  • Article
  • Open Access
178 Views
32 Pages

23 January 2026

This paper uses a systematic approach to constructing a mathematical description of the technological process of aluminum production, aimed at addressing control challenges and improving energy sustainability through a comprehensive analysis of techn...

  • Article
  • Open Access
542 Views
17 Pages

Roasting of Spodumene with Calcite at Atmospheric Pressure—Implications of Trace Potassium

  • Enrique Garcia-Franco,
  • María-Pilar Martínez-Hernando,
  • Roberto Paredes,
  • Yolanda Sanchez-Palencia,
  • Pedro Mora and
  • Marcelo F. Ortega

2 January 2026

Lithium is an essential material for lightweight batteries. Traditional mining of soluble salts expanded to include the extraction of hard rocks, which requires their solubilization through roasting. Among hard lithium rocks, spodumene has recently r...

  • Article
  • Open Access
14 Citations
5,811 Views
24 Pages

22 February 2024

The steel industry, which relies heavily on primary energy, is one of the industries with the highest CO2 emissions in China. It is urgent for the industry to identify ways to embark on the path to “green steel”. Hydrogen metallurgy techn...

  • Article
  • Open Access
12 Citations
4,915 Views
18 Pages

Influence of Ti on the Tensile Properties of the High-Strength Powder Metallurgy High Entropy Alloys

  • Igor Moravcik,
  • Stepan Gamanov,
  • Larissa Moravcikova-Gouvea,
  • Zuzana Kovacova,
  • Michael Kitzmantel,
  • Erich Neubauer and
  • Ivo Dlouhy

26 January 2020

The focus of this study is the evaluation of the influence of Ti concentration on the tensile properties of powder metallurgy high entropy alloys. Three Ni1.5Co1.5CrFeTiX alloys with X = 0.3; 0.5 and 0.7 were produced by mechanical alloying and spark...

  • Review
  • Open Access
34 Citations
13,105 Views
21 Pages

Various Options for Mining and Metallurgical Waste in the Circular Economy: A Review

  • Thobeka Pearl Makhathini,
  • Joseph Kapuku Bwapwa and
  • Sphesihle Mtsweni

31 January 2023

In the last few years, the mining and metallurgy industry has made concerted efforts to improve waste management through a byproduct recovery strategy, mainly focusing on developing innovative technologies to provide sustainable solutions. This strat...

  • Feature Paper
  • Article
  • Open Access
27 Citations
8,472 Views
14 Pages

21 February 2024

The application of microwave technology in mineral metallurgy is a transformative approach to ore processing that offers new ideas about the current progressive depletion of resources and the environmental impact of mineral processing. This review de...

  • Review
  • Open Access
5 Citations
2,948 Views
28 Pages

Properties, Advantages, and Prospects of Using Cobalt-Free Composites Based on Tungsten Carbide in Industry

  • Sherzod Kurbanbekov,
  • Yernat Kozhakhmetov,
  • Mazhyn Skakov,
  • Bekbolat Seitov,
  • Madina Aidarova and
  • Yerkezhan Tabiyeva

31 December 2024

This paper reviews recent advances in the synthesis of cobalt-free high-strength tungsten carbide (WC) composites as sustainable alternatives to conventional WC-Co composites. Due to the high cost of cobalt, limited supply, and environmental concerns...

  • Article
  • Open Access
3 Citations
4,828 Views
16 Pages

Manufacturing and Properties of Spherical Iron Particles from a by-Product of the Steel Industry

  • Andreas Walter,
  • Gerd Witt,
  • Sebastian Platt and
  • Stefan Kleszczynski

3 April 2023

In modern cold rolling mills in the steel industry, iron oxide powder is produced as a by-product when used pickling agents are recycled. Further processing of these iron oxide powders could enable the production of iron powder for various applicatio...

  • Review
  • Open Access
11 Citations
8,280 Views
20 Pages

Highlighting the Role of Archaea in Urban Mine Waste Exploitation and Valorisation

  • Annalisa Abdel Azim,
  • Ruggero Bellini,
  • Arianna Vizzarro,
  • Ilaria Bassani,
  • Candido Fabrizio Pirri and
  • Barbara Menin

4 February 2023

E-materials become e-waste once they have been discarded without the intent of reuse. Due to its rich content of metals, among which many are Critical Raw Materials (CRMs), e-waste can be considered an urban mine to exploit and valorise. Common metal...

  • Communication
  • Open Access
10 Citations
3,936 Views
8 Pages

25 January 2021

Lithium metal anode still confronts a series of problems at the way to commercialization though it has advantages in high energy density. The formation of Li dendrite is the major limitation need to be conquered. Here, a facile and simple LiSn alloy...

  • Article
  • Open Access
56 Citations
8,351 Views
16 Pages

Microwave-Assisted Preparation of High Entropy Alloys

  • Paolo Veronesi,
  • Roberto Rosa,
  • Elena Colombini and
  • Cristina Leonelli

7 October 2015

Microwaves at the ISM (Industrial, Scientific and Medical, reserved internationally) frequency of 2450 or 5800 MHz have been used to prepare FeCoNiCuAl, FeCrNiTiAl and FeCoCrNiAl2.5 high entropy alloys by direct heating of pressed mixtures of metal p...

  • Review
  • Open Access
2,974 Views
19 Pages

3 September 2024

Factsage is a robust thermodynamic calculation software that enables simulation and computation of complex multi-component and multi-phase system reactions. It has a variety of application fields such as metallurgy, energy, and environmental domains....

  • Feature Paper
  • Review
  • Open Access
2 Citations
1,739 Views
17 Pages

On the Exploitation of Lignin Slow Pyrolysis Products

  • Guido Busca,
  • Elena Spennati,
  • Matteo Borella,
  • Alessandro A. Casazza and
  • Gabriella Garbarino

16 February 2025

The potential of technical lignins as secondary raw materials is discussed. The characteristics of lignin pyrolysis, with particular emphasis on slow pyrolysis technologies, are briefly summarized. The slow pyrolysis process, which can be self-sustai...

  • Proceeding Paper
  • Open Access
1 Citations
3,217 Views
7 Pages

The Significance of SDGs for the Raw Materials Sector: A Stakeholders’ Approach in Three ESEE Countries

  • Stavros Tomazinakis,
  • George Valakas,
  • Anna Gaki,
  • Dimitrios Damigos and
  • Katerina Adam

The Raw Materials (RM) sector is linked to Sustainable Development Goals (SDGs), impacting their implementation throughout the whole RM value chain (e.g., mining, processing, metallurgy, recycling, etc.). This study aims to identify and rank the most...

  • Review
  • Open Access
22 Citations
5,140 Views
13 Pages

From Machining Chips to Raw Material for Powder Metallurgy—A Review

  • Catarina Duarte Batista,
  • Adriana André Martins das Neves de Pinho Fernandes,
  • Maria Teresa Freire Vieira and
  • Omid Emadinia

20 September 2021

Chips are obtained by subtractive processes such as machining workpieces and until recently considered as waste. However, in recent years they are shown to have great potential as sustainable raw materials for powder technologies. Powder production f...

  • Review
  • Open Access
26 Citations
4,743 Views
20 Pages

Approaches for the Treatment and Resource Utilization of Electroplating Sludge

  • Song Guo,
  • Huimin Wang,
  • Xiaoming Liu,
  • Zengqi Zhang and
  • Yu Liu

8 April 2024

The disposal of electroplating sludge (ES) is a major challenge for the sustainable development of the electroplating industry. ESs have a significant environmental impact, occupying valuable land resources and incurring high treatment costs, which i...

  • Article
  • Open Access
1 Citations
4,875 Views
12 Pages

17 June 2024

In a world facing the challenges of climate change, it is imperative to prioritize the search for sustainable technical solutions. This study focuses on evaluating the environmental impact of using bio-coke compared to traditional metallurgical coke,...

  • Article
  • Open Access
4 Citations
2,573 Views
19 Pages

Inter-Industry Transfer of Intermediate Virtual Water Scarcity Risk: The Case of China

  • Xin’er Ning,
  • Yanjun Zhang,
  • Hongbo Xu,
  • Wenxun Dong,
  • Yuanxin Song and
  • Liping Zhang

1 February 2023

Multiple factors need to be considered when allocating water resources, among which water scarcity risk is often ignored. However, the unmet water demand of upstream sectors with high water dependency will exacerbate water scarcity, and lead to poten...

  • Article
  • Open Access
4 Citations
3,581 Views
10 Pages

23 June 2021

The Indigenous inhabitants of Arctic and Subarctic North America had been using native copper for several centuries prior to sustained interaction with Europeans beginning in the 18th century. The connection, if any, between the use of copper in thes...

  • Review
  • Open Access
1 Citations
1,601 Views
37 Pages

Advances in Superlattice Hydrogen Storage Alloys: Preparation Method, Phase Structure Modulation, and Hydrogen Storage Performance

  • Yuqing Zhang,
  • Yajie Zhang,
  • Tianmeng He,
  • Hao Wang,
  • Shubin Zhang,
  • Jinpeng Wang,
  • Xiaoyi Xue,
  • Yanrong Liu and
  • Biaohua Chen

Superlattice hydrogen storage alloys have attracted much attention due to their high capacity, excellent cyclic stability, and moderate operating conditions. This review, focusing on journal articles published between 2020 and 2025, comprehensively c...

  • Article
  • Open Access
3 Citations
2,388 Views
19 Pages

Comparative Life Cycle Sustainability Assessment of Mono- vs. Bivalent Operation of a Crucible Melting Furnace

  • Maximilian Schutzbach,
  • Steffen Kiemel,
  • Robert Miehe,
  • Ekrem Köse,
  • Alexander Mages and
  • Alexander Sauer

19 July 2022

The benefits of energy flexibility measures have not yet been conclusively assessed from an ecological, economic, and social perspective. Until now, analysis has focused on the influence of changes in the energy system and the ecological and economic...

  • Review
  • Open Access
1 Citations
8,851 Views
17 Pages

The Role of Activity-Based Costing in Reducing Environmental Impact: A Systematic Literature Review

  • Vesnia Ortiz-Cea,
  • Jairo Dote-Pardo,
  • Valeska V. Geldres-Weiss and
  • Verónica Peña-Acuña

5 February 2025

Accounting professionals play a pivotal role in reducing environmental impact through systems like activity-based costing (ABC). This study offers a thorough review of research on ABC and environmental impact, providing insights into the current lite...

  • Article
  • Open Access
3 Citations
3,429 Views
18 Pages

Purification of CaF2 from Fluorine-Containing Sludge: Optimization via Calcium Ion Coexistence Effect

  • Danyang Zhu,
  • Xiang Chen,
  • Hui Gong,
  • Xiankai Wang,
  • Xueyuan Qiao and
  • Xiaohu Dai

16 February 2025

The rapid development of the photovoltaic industry has significantly increased fluorine-containing sludge production. Calcium fluoride (CaF2), a vital non-renewable raw material used in optics, metallurgy, and chemical synthesis, holds immense signif...

  • Article
  • Open Access
5 Citations
2,447 Views
14 Pages

12 February 2022

This paper targets developing new low-cost sustainable materials. To achieve this objective, aluminum was utilized as base material for metal matrix nanocomposites (MMNC). Three routes of advanced manufacturing techniques were designed and implemente...

  • Article
  • Open Access
50 Citations
11,659 Views
28 Pages

Use of Iron and Steel Slags in Concrete: State of the Art and Future Perspectives

  • Alan Piemonti,
  • Antonio Conforti,
  • Luca Cominoli,
  • Sabrina Sorlini,
  • Antonella Luciano and
  • Giovanni Plizzari

8 January 2021

In the two last decades, world production of pig iron and steel has undergone a significant increase. In 2018, 1252.87 and 1806.46 million tons of pig iron and steel, respectively, were produced as compared to the 575.78 and 809.94 million tons of 20...

  • Review
  • Open Access
23 Citations
11,915 Views
20 Pages

13 June 2024

Hydrometallurgical gold recovery processes play a pivotal role in the gold mining industry, contributing to more than 90% of global gold production. Among the array of techniques available, the Merrill–Crowe process, adsorption, ion exchange, a...

  • Review
  • Open Access
13 Citations
3,970 Views
14 Pages

MXene Based Nanocomposites for Recent Solar Energy Technologies

  • T. F. Alhamada,
  • M. A. Azmah Hanim,
  • D. W. Jung,
  • R. Saidur,
  • A. Nuraini and
  • W. Z. Wan Hasan

18 October 2022

This article discusses the design and preparation of a modified MXene-based nanocomposite for increasing the power conversion efficiency and long-term stability of perovskite solar cells. The MXene family of materials among 2D nanomaterials has shown...

  • Feature Paper
  • Article
  • Open Access
35 Citations
8,562 Views
20 Pages

Carbon Footprint Assessment of Hydrogen and Steel

  • Julian Suer,
  • Marzia Traverso and
  • Nils Jäger

14 December 2022

Hydrogen has the potential to decarbonize a variety of energy-intensive sectors, including steel production. Using the life cycle assessment (LCA) methodology, the state of the art is given for current hydrogen production with a focus on the hydrogen...

  • Article
  • Open Access
2 Citations
1,512 Views
13 Pages

Determining the Reactivity of Selected Biomass Types Considering Their Application in Pyrometallurgical Processes of Metal Production

  • Robert Findorak,
  • Lubomir Pikna,
  • Tomasz Matuła,
  • Leszek Blacha,
  • Jerzy Łabaj,
  • Albert Smalcerz and
  • Dorota Babilas

2 June 2024

In this paper, results of research on the reactivities of selected biomass types considering their application in pyrometallurgical processes of metal production are presented. Walnut shells, sunflower husk pellets and spent coffee grounds were selec...

  • Article
  • Open Access
355 Views
14 Pages

28 November 2025

Background: Cu-based friction materials (CBFMs) exhibit significant application in transportation and mechanical engineering due to their excellent wear resistance, thermal conductivity, and stable tribological performance. Methods: In this study, CB...

  • Article
  • Open Access
568 Views
25 Pages

7 November 2025

This paper explores the structural, mechanical, thermal, and electrochemical properties of copper matrix composites (CMCs) enhanced by Crassostrea madrasensis seashell powder, which were produced via powder metallurgy and resistance sintering. FESEM...

  • Review
  • Open Access
4 Citations
4,215 Views
32 Pages

17 August 2025

The electric arc furnace (EAF) is a key technology in the steel production industry, particularly for recycling scrap iron. It plays a crucial role in the shift to low-carbon metallurgy, responding to the growing demand for more sustainable productio...

  • Article
  • Open Access
6 Citations
5,070 Views
17 Pages

26 March 2022

The raw materials (RM) sector is linked to the Sustainable Development Goals (SDGs), and it impacts their implementation, in a positive or adverse manner, throughout the whole RM value chain (e.g., mining, processing, metallurgy, recycling, etc.). Th...

  • Article
  • Open Access
2,321 Views
24 Pages

Effects of Melting/Casting and Thermal Treatment Surrounding Gas Phase Composition on the Properties of a Low-Alloyed Steel

  • Guillaume Ah-lung,
  • Ayyoube Barchid,
  • Brahim Boubeker,
  • Youssef Samih,
  • Jones Alami,
  • Sanae Baki Senhaji and
  • Johan Jacquemin

21 November 2024

This study aims to provide insights into the experimental conditions used during the melting/casting process and subsequent thermal treatments of low-alloy steels, particularly regarding recycled scrap metals. As sustainable practices in metallurgy g...

  • Review
  • Open Access
4,030 Views
16 Pages

Recycling Technologies for Extracting Gallium from Light-Emitting Diodes

  • Laraib Mustafa,
  • Muhammad Usman,
  • Shazma Ali,
  • Ahmed Ali and
  • Anis Naveed

12 August 2025

Light-emitting diodes (LEDs) are made up of precious metals, e.g., gallium. These elements can be recovered and reused, reducing the need for new raw materials. Proper recycling prevents harmful substances in LEDs, such as lead and arsenic, from cont...

  • Article
  • Open Access
788 Views
16 Pages

Manufacturing of Diamond Tool Segments via Microwave–Hybrid Sintering

  • Fernando A. Costa Oliveira,
  • Pedro F. Borges,
  • Adriano Coelho,
  • Pedro M. Amaral and
  • Jorge Cruz Fernandes

Microwave (MW) sintering offers a promising alternative to conventional heating in powder metallurgy, providing faster processing, lower energy consumption, and improved microstructural control. In the diamond tool industry—where cost-efficienc...

  • Article
  • Open Access
167 Views
20 Pages

Reliability Modeling of Complex Ball Mill Systems with Stress–Strength Interference Theory

  • Ruijie Gu,
  • Haotian Ye,
  • Hao Xing,
  • Shuaifeng Zhao,
  • Yang Liu and
  • Yan Wang

13 January 2026

The ball mill is a critical size reduction equipment in industries such as mining and metallurgy. However, the sustainable reliability modeling of the entire system is challenging due to its complex service conditions. This paper presents a systemati...

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