Effect of Coatings and Coating Methods on Cluster Index in Iron Oxide Pellets for Direct Reduction Shaft Furnaces

2021 ◽  
Author(s):  
Jean Philippe Santos Gherardi de Alencar ◽  
Valdirene Gonzaga de Resende ◽  
Wander Luiz Vasconcelos
Keyword(s):  
Iron Oxide ◽  
Direct Reduction ◽  
Cluster Index ◽  
Coating Methods ◽  
Shaft Furnaces

Developing Nanomaterials for Ironmaking Processes: Theory and Practice

2017 ◽  
Vol 865 ◽  
pp. 3-8
Author(s):  
K.S. Abdel Halim ◽  
M. Ramadan ◽  
A. Shawabkeh ◽  
N. Fathy
Keyword(s):  
Blast Furnace ◽  
Energy Consumption ◽  
Iron Oxide ◽  
Direct Reduction ◽  
Steel Production ◽  
Theory And Practice ◽  
Current Status ◽  
Iron And Steel ◽  
Iron And Steel Production ◽  
Promising Source

Ironmaking processes take three main forms namely; blast furnace, direct reduction and direct smelting processes. Ironmaking is energy intensive sector as it requires huge amount of natural resources. It is also very important for the worldwide economy where it provides the backbone for construction, transportation and manufacturing. Many factors are strongly affecting the developing of ironmaking processes such as energy consumption, materials costs, and environment problems. These factors should be considered when discussing any new trend for developing ironmaking processes. The present work handles the current status and future of ironmaking processes. The technical and economic environment that motivates the development of these processes will be also clarified. The manuscript is designated to investigate theoretically and practically the possibility of using nanomaterials in ironmaking processes. Nano-sized iron oxides can be considered a promising source for deceasing energy consumption in iron and steel industry. The reduction of iron oxide is the most important processes in ironmaking and usually operated at relatively high temperatures. The nanopowder of iron oxide could be charged to a blast furnace together with the blast, much like the current pulverized coal injection technology. In that case, the reducibility of blast furnace burdens will be improved and consequently the energy consumption for reduction will be declined. Accordingly, minimizing the energy consumption will greatly influence the gross energy consumption of iron and steel production.

Synthesis and coating methods of biocompatible iron oxide/gold nanoparticle and nanocomposite for biomedical applications

2020 ◽  
Vol 64 ◽  
pp. 305-325 ◽  
Author(s):  
Mohammed Ali Dheyab ◽  
Azlan Abdul Aziz ◽  
Mahmood S Jameel ◽  
Osama Abu Noqta ◽  
Baharak Mehrdel
Keyword(s):  
Iron Oxide ◽  
Gold Nanoparticle ◽  
Biomedical Applications ◽  
Coating Methods

scholarly journals Quantitative Analysis on Contribution of Direct Reduction of Iron Oxide in Carbon Composite

2013 ◽  
Vol 53 (10) ◽  
pp. 1763-1769 ◽  
Author(s):  
Taichi Murakami ◽  
Takeshi Nishimura ◽  
Naohiro Tsuda ◽  
Eiki Kasai
Keyword(s):  
Quantitative Analysis ◽  
Iron Oxide ◽  
Direct Reduction ◽  
Carbon Composite ◽  
Reduction Of Iron ◽  
Direct Reduction Of Iron

Coating of iron oxide pellets for direct reduction

2002 ◽  
Vol 31 (3) ◽  
pp. 229-233 ◽  
Author(s):  
Ali Basdag ◽  
Ali Ihsan Arol
Keyword(s):  
Iron Oxide ◽  
Direct Reduction

scholarly journals Recovery Of Nickel From Spent Nickel-Cadmium Batteries Using A Direct Reduction Process

2015 ◽  
Vol 60 (2) ◽  
pp. 1365-1370 ◽  
Author(s):  
D.J. Shin ◽  
S.-H. Joo ◽  
J.-P. Wang ◽  
S.-M. Shin
Keyword(s):  
Iron Oxide ◽  
Nickel Oxide ◽  
Direct Reduction ◽  
Base Material ◽  
Reduction Process ◽  
Smelting Process ◽  
Low Grade ◽  
Direct Reduction Process ◽  
Ni Alloy ◽  
Pre Treatment

Abstract Most nickel is produced as Ferro-Nickel through a smelting process from Ni-bearing ore. However, these days, there have been some problems in nickel production due to exhaustion and the low-grade of Ni-bearing ore. Moreover, the smelting process results in a large amount of wastewater, slag and environmental risk. Therefore, in this research, spent Ni-Cd batteries were used as a base material instead of Ni-bearing ore for the recovery of Fe-Ni alloy through a direct reduction process. Spent Ni-Cd batteries contain 24wt% Ni, 18.5wt% Cd, 12.1% C and 27.5wt% polymers such as KOH. For pre-treatment, Cd was vaporized at 1024K. In order to evaluate the reduction conditions of nickel oxide and iron oxide, pre-treated spent Ni-Cd batteries were experimented on under various temperatures, gas-atmospheres and crucible materials. By a series of process, alloys containing 75 wt% Ni and 20 wt% Fe were produced. From the results, the reduction mechanism of nickel oxide and iron oxide were investigated.

Online Modelling of ENERGIRON Direct Reduction Shaft Furnaces

2013 ◽  
Vol 46 (16) ◽  
pp. 346-351 ◽  
Author(s):  
Alberto Zugliano ◽  
Alessandra Primavera ◽  
Dino Pignattone ◽  
Alessandro Martinis
Keyword(s):  
Direct Reduction ◽  
Shaft Furnaces
Sign in / Sign up

Export Citation Format

Share Document