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JOM, 1958
Why are we reversing previous conclusions as to the impracticability of direct reduction? The answers appear to be largely economic: rising scrap costs and the high cost of new capital equipment. Another factor stems from the increasing availability of lower grade ores and the necessity for treating fines; this means higher capital and operating costs ...
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Why are we reversing previous conclusions as to the impracticability of direct reduction? The answers appear to be largely economic: rising scrap costs and the high cost of new capital equipment. Another factor stems from the increasing availability of lower grade ores and the necessity for treating fines; this means higher capital and operating costs ...
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DIRECT IRON SMELTING REDUCTION PROCESSES
Mineral Processing and Extractive Metallurgy Review, 2008Direct iron smelting-reduction processes have been developed as an alternative to the blast furnace process for making molten, slag-free iron.
B. Anameric, S. Komar Kawatra
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Electric direct-reduction process
JOM, 1959Here is another new steelmaking process. It makes use of a double-hearth, low-frequency induction furnace for the production of pig iron or steel. It can produce high-quality and alloy steels.
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JOM, 1958
Republic Steel and National Lead have combined forces to produce a direct reduction process specifically adapted to U. S. ores, both high and low grade.
Alex Stewart, H. K. Work
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Republic Steel and National Lead have combined forces to produce a direct reduction process specifically adapted to U. S. ores, both high and low grade.
Alex Stewart, H. K. Work
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Mathematical simulation of direct reduction
Metallurgical Transactions B, 1981A finite element analysis is developed for nontopochemical reduction of a porous iron oxide pellet. The reduction kinetics are essentially the same as those used by Trushenski, Li and Philbrook. However, several novel features arise in the present analysis.
K. O. Yu, P. P. Gillis
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Direct reduction and differential constraints
Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1994Direct reductions of partial differential equations to systems of ordinary differential equations are in one-to-one correspondence with compatible differential constraints. The differential constraint method is applied to prove that a parabolic evolution equation admits infinitely many characteristic second order reductions, but admits a non ...
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Iron, 3. Direct Reduction Processes
2014The article contains sections titled: 1. Introduction 2. Shaft Furnace Processes for Direct Reduction 3. Retort Processes 4. Fluidized-Bed Processes 5.
Lothar Formanek +2 more
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1958
The present status of direct reduction processes for the production of iron from iron ore, is outlined. A number of typical processes of this type are briefly reviewed.
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The present status of direct reduction processes for the production of iron from iron ore, is outlined. A number of typical processes of this type are briefly reviewed.
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