Results 41 to 50 of about 42,119 (320)

Effect of H₂ on Blast Furnace Ironmaking: A Review

Metals, 2022
Under the background of “carbon peaking” and “carbon neutralization”, the green transformation of iron and steel enterprises is imminent. The hydrogen-rich smelting technology of blast furnaces is very important for reducing energy consumption and CO2 ...
Chenchen Lan, Yuejun Hao, Jiannan Shao, Shuhui Zhang, Ran Liu, Qing Lyu   +5 more
doaj   +1 more source

Circular Potential of Lithium‐Ion Battery Recycling Slags: Quantifying Microstructure and Elemental Distribution for a Holistic Valorization

Advanced Science, EarlyView.
A lithium‐bearing slag is investigated with the goal of holistic valorization. The present β‐eucryptite (LiAlSiO4) exhibits a high lithium content and low levels of impurities. The spinel contains most of the chromium and vanadium, representing additional valorization opportunities.
Peter Cornelius Gantz, Charlize Alexia Senkyr, Rüdiger Kilian, Andreas Neumann, Maximilian Korges, Daniel A. Frick, Hans Roggendorf, Ralf Wehrspohn, Stefan Stöber, Christiane Stephan‐Scherb   +9 more
wiley   +1 more source

Recovery of Iron, Chromium, and Nickel from Pickling Sludge Using Smelting Reduction

Metals, 2018
This paper reports the recoveries of iron, chromium, and nickel from pickling sludge using coal-based smelting reduction. The influences of slag basicity (CaO/SiO2, which is controlled by high phosphorus oolitic hematite iron ores), reduction temperature,
Zhaohui Tang, Xueyong Ding, Xinlin Yan, Yue Dong, Chenghong Liu   +4 more
doaj   +1 more source

From Green Governance to Biodiversity Strategy: The Role of Environmentally Experienced Directors in Chinese Firms

Business Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang, Sultan Sikandar Mirza, Chengwei Zhang   +2 more
wiley   +1 more source

New Process for Efficient Separation and Comprehensive Recovery of Valuable Metals from Jarosite Residues

Metals
Jarosite residue (JR), a hazardous solid waste generated in non-ferrous metallurgy, poses significant environmental challenges due to its large volume and poor storage stability.
Qi Zhou, Jian Pan, Deqing Zhu, Congcong Yang, Zhengqi Guo, Siwei Li, Xianqing Xu   +6 more
doaj   +1 more source

Thermodynamic Study of H₂-FeO Based on the Principle of Minimum Gibbs Free Energy

Metals, 2023
Studies have shown that the reduction of wustite is the limiting factor in the ironmaking process, whether in hydrogen-based shaft furnaces, hydrogen-rich blast furnaces or smelting reduction vessels.
Shuyue Chen, Jianliang Zhang, Yaozu Wang, Tengfei Wang, Yang Li, Zhengjian Liu   +5 more
doaj   +1 more source

Mobility of antimony, arsenic and lead at a former mine, Glendinning, Scotland [PDF]

, 2015
Elevated concentrations of antimony (Sb), arsenic (As) and lead (Pb) in upland organic-rich soils have resulted from past Sb mining activities at Glendinning, southern Scotland. Transfer of these elements into soil porewaters was linked to the production
Farmer, John G., Graham, Margaret C., Macgregor, Kenneth, MacKinnon, Gillian   +3 more
core   +1 more source

Energy consumption in smelting reduction (SR) processes [PDF]

Rem: Revista Escola de Minas, 2010
In contrast, conventional processes use coke and hematite/sinter in the blast furnace, in SR processes, other alternative fuels and iron ore sources, like charcoal and fine iron ores, can be used to produce sponge iron. The use of these alternative sources, by SR processes, can reduce environmental impacts and lower production costs.
Assis, Paulo Santos, Fang, Jue, Mankhand, Tilak R., Assis, Carlos Frederico Campos de, Salierno, Giovanni Felice   +4 more
openaire   +3 more sources

A Critical Analysis of Microsoft's Rhetoric and Reality of Sustainability Engagement

Business Strategy and the Environment, EarlyView.
ABSTRACT This study critically examines Microsoft's environmental, social and governance (ESG) rhetoric and operational reality, to offer insights that extend beyond conventional greenwashing or bluewashing. Drawing on over 20 years of Microsoft's sustainability reports (2003–2024), third‐party ESG evaluations and media investigations, it employs ...
Omaima A. G. Hassan, Iqbal Khadaroo
wiley   +1 more source

Energy Consumption and CO₂ Emissions in Ironmaking and Development of a Novel Flash Technology

Metals, 2019
The issues of energy consumption and CO2 emissions of major ironmaking processes, including several new technologies, are assessed. These two issues are interconnected in that the production and use of fuels to generate energy add to the total amount of ...
Hong Yong Sohn
doaj   +1 more source