Results 51 to 60 of about 6,108 (160)

Thermodynamic of Liquid Iron Ore Reduction by Hydrogen Thermal Plasma

Metals, 2018
The production of iron using hydrogen as a reducing agent is an alternative to conventional iron- and steel-making processes, with an associated decrease in CO2 emissions.
Masab Naseri Seftejani, Johannes Schenk
doaj   +1 more source

Isothermal Reduction of Wustite Under Hydrogen Atmosphere at 1673 K–1773 K

Metals
The use of hydrogen for smelting reduction ironmaking can effectively reduce the consumption of coke, as well as the CO2 emission. However, the dynamic mechanism of this process is not clear. In this paper, isothermal thermogravimetric analysis (TGA) was
Fulong Li, Jianliang Zhang, Yang Li, Tengfei Wang, Ben Feng, Yaozu Wang, Chunmei Yu, Zhengjian Liu   +7 more
doaj   +1 more source

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

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

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

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

Study of the reduction rate anti-fixation phenomenon by combining precursor porosity and relative vacuum mechanisms

Alexandria Engineering Journal
The high carbon emission (23 t CO2 / 1 t Mg) and high energy consumption (5tce / 1 t Mg) of raw magnesium smelting seriously limit the expansion of its output.
Jing-zhong Xu, Ting-an Zhang, Yan Liu, Yishan Liu   +3 more
doaj   +1 more source

Development Status and Prospect of Smelting Reduction Ironmaking Technology in China

Kuangchan zonghe liyong
This is an article in the field of metallurgical engineering. With the increasing attention of iron and steel enterprises to pollutant emission, non blast furnace ironmaking process has gradually become a hot issue.
Chenchen LAN, Yanjia GAO, Qing LYU, Zhenfeng ZHANG, Feng GAO, Shuhui ZHANG   +5 more
doaj   +1 more source

Modifications of the chemical composition and microstructure of flash smelting copper slags in the process of their reduction

Metalurgija, 2015
Blister copper smelting in a flash smelting furnace results in generation of slag that contains high amounts of copper, iron and lead. Most commonly, this material is subjected to reduction with coke in an electrical furnace.
T. Rzychoń, T. Matuła, B. Chmiela, J. Łabaj, K. Rogóż   +4 more
doaj