Results 251 to 260 of about 4,430,869 (300)
Some of the next articles are maybe not open access.
Smelting Reduction Technologies for Direct Ironmaking
Mineral Processing and Extractive Metallurgy Review, 1993Smelting reduction is a term assigned to a group of upcoming ironmaking processes which aim at overcoming certain fundamental problems of the existing blast furnace route. These problems include dependence on large scale operation, reliance on coking coal and prepared raw materials as well as environmental pollution. A number of groups around the world,
P. BASU +3 more
openaire +1 more source
Slag foaming in smelting reduction processes
Steel Research, 1989In order to understand the effect of slag composition on foaming in the smelting reduction process, slag foaming was quantitatively studied for CaO–SiO2–FeO slags in the temperature ranging 1250–1400 °C. It was found that slag foaming could be characterized by a foaming index Σ which is equal to the retention or travelling time of the gas in the slag ...
K. Ito, Richard J. Fruehan
openaire +1 more source
Scientia Sinica Technologica, 2020
The iron and steel manufacturing industry is a vital industry for a nation’s economy. The traditional smelting reduction ironmaking process has the disadvantages of high consumption of lump coal and coke as well as low space utilization rate.
Zou Qingfeng +6 more
semanticscholar +1 more source
The iron and steel manufacturing industry is a vital industry for a nation’s economy. The traditional smelting reduction ironmaking process has the disadvantages of high consumption of lump coal and coke as well as low space utilization rate.
Zou Qingfeng +6 more
semanticscholar +1 more source
Hydrogen Plasma Smelting Reduction of Fe2O3
Metallurgical and Materials Transactions B, 2018The paper reports successful smelting reduction of iron ore (hematite) in thermal hydrogen plasma. A specially designed reactor with water cooled copper crucible and a plasma torch was used to demonstrate the process in 1-kg scale. The number of stoichiometric requirement of hydrogen is a better parameter, instead of time, for determining the rate of ...
P. R. Behera +4 more
openaire +1 more source
Fluidized bed reduction as the prestep of smelting reduction
Steel Research, 1989Comparing the four fundamental ironmaking processes the reasons for the development of smelting reduction were derived. Based on bibliographical references a fundamental classification of the main important smelting reduction processes is presented regarding the process engineering principle of both steps, prereduction and final reduction. According to
Heinrich Wilhelm Gudenau +3 more
openaire +1 more source
Smelting High Phosphorus Iron Ore by Oxygen Enriched Top-Blown Smelting Reduction
2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, 2011Smelting reduction iron making technology will solve the coke shortage and environmental pollution, which has become a major research of. Iron development. By oxygen top-blown high-phosphorus iron ore smelting reduction test, that the use of oxygen top-blown molten high phosphate smelting reduction technology is feasible, and inappropriate smelting ...
Qing Shan +6 more
openaire +1 more source
Development in smelting reduction processes
Steel Research, 1989Corex process is a smelting reduction process to produce hot metal of blast‐furnace quality. Coal is used instead of coke, and this replacement makes production costs of hot metal decrease. Iron ore reduction and melting is separated into two steps: in a melter gasifier reducing gas is generated and melting energy is produced by coal gasification; iron
openaire +1 more source
Smelting reduction in iron baths
Steel Research, 1989A joint venture between Klöckner‐Werke and CRA was formed to work out the application of coal injection into the iron bath to smelting reduction. In the Hlsmelt process of CRA smelting reduction of prereduced fine ore is to be carried out directly in the iron bath. Post combustion, different coal grades, and metallurgical reactions were investigated in
openaire +1 more source
Conclusions on the development of smelting reduction
Steel Research, 1989The present paper summarizes the results of the US‐German Symposium on “Innovative Iron and Steel Making Processes”. A survey is given on the state‐of‐the‐art technology as well as the state and further needs of research.
H. Alan Fine +3 more
openaire +1 more source
Behaviour of coal in smelting reduction installation
Ironmaking & Steelmaking, 2000AbstractA model for the behaviour of coal particles under conditions of the ROMELT liquid phase iron reduction smelting process is presented. Values of the main parameters of the model have been determined on the basis of experimental data. The model allows evaluation of the content and fractional composition of the coal mixed into the slag, for ...
A.B. Usachev +3 more
openaire +1 more source