Results 81 to 90 of about 6,165 (243)

Development and Application of the Operating Line for the CHORSF Process

Metals
To achieve carbon emission reduction in the long ironmaking process with blast furnace-basic oxygen furnace (BF-BOF), the Hebei Iron & Steel Group and Northeastern University have jointly developed the Reduction Smelting Furnace with Carbon-Cycling ...
Jiangzilin Liu, Zhiguo Luo, Jiayu Luo, Xiaozhuang Liu   +3 more
doaj   +1 more source

A Critical Review on Nitrogen Control in the Scrap‐Based Electric Arc Furnace Steelmaking Route to Produce Low‐Nitrogen Steels

steel research international, EarlyView.
In primary electric arc furnace (EAF) steelmaking, carbon boiling removes nitrogen from liquid steel and sustains slag foaming. In 100% scrap‐ or hydrogen direct reduced iron (HDRI)‐based EAF steelmaking, carbon boiling is absent; therefore, carbonaceous material and oxygen injection into the slag is needed to maintain foaming and avoid nitrogen ...
Zushu Li, Lei Guo, Jintao Gao, Yuri Korobeinikov   +3 more
wiley   +1 more source

Selective Recovery of Tin from Electronic Waste Materials Completed with Carbothermic Reduction of Tin (IV) Oxide with Sodium Sulfite

Recycling
A new approach for the thermal reduction of tin dioxide (SnO2) in the carbon/sodium sulfite (Na2SO3) system is demonstrated. The process of tin smelting was experimentally optimized by adjusting the smelting temperature and amounts of the chemical ...
Wojciech Hyk, Konrad Kitka
doaj   +1 more source

The method of smelting metals from charge with low metal content in a furnace with bottom electrodes and the first laboratory studies

MATEC Web of Conferences, 2018
Liquid phase smelting reduction process for utilization of ferrous waste in the electric furnace with stationary bottom electrodes by carbon-thermal reduction is proposed and tested in laboratory conditions.
Kazak Oleg, Starodumov Ilya
doaj   +1 more source

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

Safety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang, Kang Yang, Jiang Dong, Lidong Xing, Bing Chen, Changke Chen   +5 more
wiley   +1 more source

Eco‐ductile design of RC columns: Resolving the conflict between embodied carbon and curvature ductility

Structural Concrete, EarlyView.
Abstract Reducing embodied carbon emissions in structural design is of critical importance in combating global climate change. However, the increased material usage and heavy confinement reinforcement required to meet high ductility demands in reinforced concrete columns directly conflict with environmental sustainability goals.
Mehmet Kevser Derdiman
wiley   +1 more source

Research on an Intelligent Prediction Model for the Reduction Endpoint of Copper Smelting in Anode Furnaces Based on the Crystallization Ratio Method and Image Recognition

Mathematics
The anode furnace is a key piece of equipment in the copper smelting process and plays a vital role in producing high-quality copper. Accurately determining the endpoint during the anode furnace reduction process is critical to ensuring copper quality ...
Bi Zhao, Haibin Hao, Jianxin Xu, Enlin Chen, Yongjie Lu   +4 more
doaj   +1 more source

Smelting Reduction of HIsarna Slag with Methane

steel research international
To study the smelting reduction behavior of methane in the HIsarna process, the isothermal reduction experiments of HIsarna slag with 6 wt% of FeO were conducted at the temperatures of 1450, 1475, and 1550 °C, using 5 vol% CH4‐Ar. The effect of the gas injection flow rate on the overall reduction rate was investigated in the range of 0.5–1.5 L min−1 ...
Theint Theint Htet, Zhiming Yan, Johannes Hage, Koen Meijer, Zushu Li   +4 more
openaire   +1 more source

Environmentally Realistic Metal Mixture Concentration Impacts Early Development in Zebrafish Larvae

Environmental Toxicology, EarlyView.
ABSTRACT The dispersion of metals in the environment leads to the presence of metal mixtures in impacted ecosystems, but few studies have addressed their impact on early developmental processes in fish. Here, we investigated the effect of metal mixtures reported in the Doce River basin in Brazil, including Fe, Mn, and Cd, either singly or as a mixture ...
Anderson K. S. Macêdo, Willian A. Thompson, Hélio B. Santos, Ralph G. Thomé, Mathilakath M. Vijayan   +4 more
wiley   +1 more source

Kinetic Analysis of Molten Oxide Reduction Using Bottom-Blown Hydrogen Injection

Metals
Hydrogen-based smelting reduction has received widespread attention as an important technology for realizing low-carbon development in hydrogen metallurgy. In this study, the thermodynamics of smelting reduction was firstly analyzed by using FactSage 8.1
Lijin Lu, Feng Wang, Haifeng Wang, Jian Qiu, Xiaodong Ping   +4 more
doaj   +1 more source