Results 51 to 60 of about 6,165 (243)

Chemical and electrochemical pathways to low-carbon iron and steel

npj Materials Sustainability
Currently, the iron and steel industry is responsible for 7% of global CO2 emissions. In this review, we summarize the operational principles of current emissions-intensive steelmaking technologies and review emerging low- and zero-carbon technologies ...
Kerry Rippy, Robert T. Bell, Noemi Leick
doaj   +1 more source

The modified red mud reduction smelting

Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu, 2018
The article presents the results of investigations of complex processing of red mud obtained from high-alumina bauxites of alumina production by the smelting reduction method. Red mud is a production waste that contains useful components and can used as a complex raw material for the production of pig iron, rare earth element (REE) concentrates and ...
R.A. Abdulvaliev, N.K. Akhmadieva, С.V. Gladyshev, L.M. Imangalieva, A.I. Manapova   +4 more
openaire   +1 more source

The Circular Economy—A New Resilience Paradigm?

Business Strategy and the Environment, EarlyView.
ABSTRACT The circular economy (CE) has traditionally been positioned as a central instrument of the sustainability paradigm. Yet escalating geopolitical volatility and supply chain fragility have elevated resilience to a parallel strategic imperative, and the conceptual integration of CE and resilience remains underexplored.
Julian Kirchherr, Felix Carl Schultz
wiley   +1 more source

Carbon‐Based Electrodes for Sodium‐Ion Batteries: Material Design, Electrochemical Performance, and Challenges

Carbon and Hydrogen, EarlyView.
Carbon‐based electrodes, including graphite, graphene, and CNT composites, are promising candidates for sodium‐ion batteries due to their stability, conductivity, and abundance. Their electrochemical performance, key limitations, and strategies for improving practical SIB applications are highlighted.
Talha Munir, Rizwan Asghar, Mehboob Ur Rahman, Zaima Afzal   +3 more
wiley   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source

Migration Behavior of Sulfur, Manganese, and Zinc During Electric Furnace Smelting of Nickel–Cobalt Enrichments

Metals
During the reductive smelting of nickel–cobalt hydroxide enrichments, the migration behavior of typical impurities has a direct impact on the quality of crude nickel and the subsequent electrorefining process.
Xiaoping Zou, Haibei Wang, Xiaobing Zhang, Xiaofei Meng, Haitai Zhou   +4 more
doaj   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Extraction of Valuable Metals from Spent Li-Ion Batteries Combining Reduction Smelting and Chlorination

Metals
Pyrometallurgical recycling of lithium-ion batteries presents distinct advantages including streamlined processing, simplified pretreatment requirements, and high throughput capacity.
Chen Wang, Wei Liu, Congren Yang, Hongbin Ling   +3 more
doaj   +1 more source

Crystallization of Cathode Active Material Precursors from Tartaric Acid Solution

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
This work investigates a novel approach for closing the gap between recycling and production of lithium‐ion battery cathode material. The new concept is based on antisolvent crystallization of metal carboxylates, which can be directly used as precursors in production of cathode material.
Chunyan Ma, Mona Mohamoud, Tiaan Punt, Jinlong Li, Michael Svärd, Kerstin Forsberg   +5 more
wiley   +1 more source

Additional Extraction of Aluminum and Silicon During Integrated Bauxite Processing in Kazakhstan

Alloys
In this paper, we experimentally investigated the integrated processing of high-iron Kazakh bauxites by reducing smelting of ore–coke–lime briquettes to produce an Fe-Al-Si metallic alloy, which is of potential interest for steel deoxidation, together ...
P. O. Bykov, M. M. Suyundikov, A. V. Bogomolov, A. B. Kuandykov, A. K. Zhunusov, N. K. Kulumbaev   +5 more
doaj   +1 more source