Evolution of the steel industry in the Arab World: the third AISU symposium (Arab Iron and Steel Union) on the electric arc furnace

2004 ◽  
Vol 101 (1) ◽  
pp. 23-29
Author(s):  
J. Astier
Keyword(s):  
Steel Industry ◽  
Arab World ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Iron And Steel ◽  
The Third

Computation of Chemical Exergy Potential in an Industrial AC Electric ARC Furnace

2005 ◽  
Vol 127 (1) ◽  
pp. 66-70 ◽  
Author(s):  
U¨nal C¸amdali ◽  
Murat Tunc¸
Keyword(s):  
Steel Industry ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Energy Costs ◽  
Iron And Steel Industry ◽  
Arc Furnace ◽  
Iron And Steel ◽  
Dead State ◽  
Chemical Exergy ◽  
Industrial Energy

Chemical exergy is equal to the maximum amount of work obtainable when the substance is brought from the environmental state to the dead state by a process involving heat transfer and exchange of substances only with the environment. As it is well known the iron and steel industry is the largest industrial energy consumer. After the employee costs, energy costs (about 30% of the total) represent the second highest cost element in integrated steel works. In this study, the chemical exergy potential in an electric arc furnace (EAF) is calculated and these potentials are distributed depending on production materials, emphasizing the chemical exergy concept.

scholarly journals Mathematical Modeling of Iron and Steel Making Processes. Modeling of a DC Electric Arc Furnace. Mixing in the Bath.

2001 ◽  
Vol 41 (10) ◽  
pp. 1146-1155 ◽  
Author(s):  
Marco Ramírez ◽  
Jonas Alexis ◽  
Gerardo Trapaga ◽  
Par Jönsson ◽  
John Mckelliget
Keyword(s):  
Mathematical Modeling ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Iron And Steel ◽  
Steel Making

scholarly journals Stabilization and solidification of electric arc furnace dust originating from steel industry by using low grade MgO

2015 ◽  
Vol 41 (4) ◽  
pp. 62-66 ◽  
Author(s):  
Ahmet Can Bayraktar ◽  
Edip Avşar ◽  
İsmail Toröz ◽  
Kadir Alp ◽  
Asude Hanedar
Keyword(s):  
Steel Industry ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Low Grade ◽  
Type I ◽  
Arc Furnace ◽  
Leaching Behavior ◽  
Electric Arc Furnace Dust ◽  
Binding Agents ◽  
Scrap Metals

Abstract In this study, solidification/stabilization (S/S) of electric arc furnace dust (EAFD) which is generated during the production of steel from scrap metals and classified as hazardous waste were investigated by using different ratios of cement and low grade MgO (LG MgO) as binding agents. Type I PC 42.5 R portland cement and LG MgO which contains 70–80% MgO were used. S/S blocks that contain different ratios of binding agents which have 1/0.5 – 1/1 – 1/2 – 1/3 – 1/4 – 1/5 cement/LG MgO ratio and S/S blocks which contain only cement and no LG MgO agents were prepared. These blocks, which contain 3 different waste ratios according to weight, 20%, 30% and 40% respectively, were produced and exposed to 28-day water purification. At the end of the purification process, S/S blocks were extracted using TCLP (Toxicity Characteristic Leaching Procedure) tests in order to determine the leaching behavior of Zn, Pb, and Cd in S/S blocks. By the end of this study, it was concluded that the recovery of EAFD is possible and applicable by immobilization. The findings of the study concluded that environmental performances or structural properties of blocks contain 30% waste by weight are suitable. This method is a proper one for recovering and treatment of EAFD with mixture of cement and LG MgO.

The Potential Usage Of Steelmaking By-Products: Electric Arc Furnace Dust

1997 ◽  
pp. 15-22
Author(s):  
Jamaliah Idris ◽  
Tee Kim Siong
Keyword(s):  
Heavy Metals ◽  
Mineral Resources ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Vision 2020 ◽  
Iron And Steel ◽  
Eaf Dust ◽  
The Right ◽  
By Products

During the steel manufacturing processes, by-products such as electric arc furnace (EAF) dust, rich in metallic oxides, are generated. In Malaysia. EAF dust is presently dumped or landfilled. However, as we forge ahead to achieve Malaysia's Vision 2020 to be a fully industrialised nation, we should not lose sight of the various regulations to protect the environment. EAF dust, presently listed as N201 and classified as scheduled waste under the Environmental Quality (Scheduled Waste) Regulations, 1989, contains heavy metals such as zinc, lead, cadmium and chromium. Heavy metals are harmful substances which are prohibited from being dumped directly. They are also valuable mineral resources. The high percentage of zinc in EAF dust suggests the potentiality to extract this valuable metal. In view of the difficulty in obtaining licence and land for dumping or landfill, and the tremendous increase in cost for present method of disposing EAF dust, a series of tests had been done to identify the potential usage of this by-product. This paper aims to direct iron and steel industry in Malaysia on the right path to the conversion of non-usable EAF dust into the recovery or valuable metals such as zinc, lead, iron, chromium, cadmium or nickel.

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