Kinetics and Statistical Behaviour of Iron Recovery from Red Mud using Plasma Arc Furnace

2011 ◽  
Vol 30 (3) ◽  
Author(s):  
Swagat S. Rath ◽  
K. Jayasankar ◽  
Bijoy K. Satapathy ◽  
Barada K. Mishra ◽  
Partha S. Mukherjee
Keyword(s):  
Red Mud ◽  
Arc Furnace ◽  
Plasma Arc ◽  
Iron Recovery

scholarly journals Reductive Smelting of Neutralized Red Mud for Iron Recovery and Produced Pig Iron for Heat-Resistant Castings

Metals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 32 ◽  
Author(s):  
Dmitry Valeev ◽  
Dmitry Zinoveev ◽  
Alex Kondratiev ◽  
Dmitry Lubyanoi ◽  
Denis Pankratov
Keyword(s):  
Red Mud ◽  
Slag Phase ◽  
Maximum Efficiency ◽  
Aluminum Production ◽  
Pig Iron ◽  
Iron Recovery ◽  
Furnace Temperature ◽  
Iron Phase ◽  
Low Sulfur Content ◽  
Low Sulfur

The chemical and mineral composition of the red mud from the Ural Aluminum Plant were studied by XRF, XRD, and Mössbauer spectroscopy. Experiments on reductive smelting of red mud were carried out in a range of temperatures (1650–1750 °C) to recover iron from the aluminum production waste with maximum efficiency. It was found that it is possible to obtain pig iron with a high content of titanium, phosphorus, and vanadium, and low sulfur content. The efficiency of iron recovery at 1750 °C was found to be around 98%. Thermodynamic calculations were carried out to assist in finding the optimal conditions for the process (e.g., carbon content, furnace temperature, slag liquidus temperature). It was also found that the pig iron phase obtained at 1650 to 1700 °C is not separated from the slag phase into ingot compared with the sample obtained at 1750 °C. Pig iron obtained at 1750 °C can be used to produce molds for the steel-casting equipment.

Bayern`s Method of Al2O3 Production – Possibilities of Red Mud Disposal and Utilization

2011 ◽  
Vol 176 ◽  
pp. 11-20 ◽  
Author(s):  
Mariola Saternus
Keyword(s):  
Chemical Composition ◽  
Red Mud ◽  
Building Materials ◽  
Short Description ◽  
Iron Recovery ◽  
Alumina Production ◽  
Advantages And Disadvantages ◽  
Primary Aluminium

Bayern`s method is the first stage of obtaining primary aluminium. The product of this process is alumina. The paper presents how much alumina was produced in the last couple of years and who were its leading producers. As the main ore for alumina production is bauxite; it was necessary to describe its characteristics: chemical composition and types of bauxites. Short description of the method (digestion, precipitation and calcination) was presented. During this process a lot of pollution is usually emitted to the atmosphere, but mostly a lot of red mud is generated. This is the main waste of the process, which at the same time is very harmful to the environment. The ways red mud is disposed or utilized were reviewed. Two kinds of red mud disposal are known: wet and dry disposal. Both were characterized and their advantages and disadvantages were outlined. The possibilities of red mud utilization were shown. The focus was put on iron recovery or recovery of compounds such as Al2O3 or TiO2. The use of red mud in building materials was discussed. Radioactivity of such materials was also analyzed. Possibility of red mud utilization as a pigment and radiopaque material was also mentioned.

Possibilities of iron recovery from red mud

2019 ◽  
Vol 1 (2) ◽  
pp. 3-7
Author(s):  
Mariola SATERNUS
Keyword(s):  
Red Mud ◽  
Iron Recovery

scholarly journals Comparison of Copper and Graphite Crucibles for Si Extraction from TiO2 - SiO2 System at Plasma-Arc Heating

2018 ◽  
Vol 5 (3) ◽  
pp. 128-130
Author(s):  
D. E. Kirpichev ◽  
A. A. Nikolaev ◽  
A. V. Nikolaev
Keyword(s):  
Temperature Field ◽  
Graphite Crucible ◽  
Arc Furnace ◽  
Plasma Arc ◽  
Dc Plasma ◽  
Sio2 System ◽  
Anode Spot ◽  
Arc Heating ◽  
Material Temperature ◽  
Made In

<p>Plasma arc recovery melting of the quartz-leucoxene concentrate is investigated. Experiments were made in laboratory DC plasma arc furnace in various crucibles. The best results are reached in a cold copper crucible. The temperature field of a pool is calculated in hot graphite and cold copper crucibles. It is shown that in a graphite crucible diameter of an anode spot is more, and density of current and material temperature in a spot is less, than in copper that is the reason of the worst refinements in a graphite crucible.</p>

Some aspects of melting high-nitrogen steel Kh21G17AN2 in plasma arc furnace

2020 ◽  
Vol 2020 (2) ◽  
pp. 23-26
Author(s):  
V.R. Burnashev ◽  
◽  
Yu.O. Nikitenko ◽  
В.В. Yakusha ◽  
I.V. Sheiko ◽  
...  
Keyword(s):  
Arc Furnace ◽  
Plasma Arc ◽  
High Nitrogen Steel ◽  
High Nitrogen ◽  
Nitrogen Steel

Iron recovery from the leached solution of red mud through the application of oxalic acid

2016 ◽  
Vol 157 ◽  
pp. 145-151 ◽  
Author(s):  
Yang Yang ◽  
Xuewen Wang ◽  
Mingyu Wang ◽  
Huaguang Wang ◽  
Pengfei Xian
Keyword(s):  
Oxalic Acid ◽  
Red Mud ◽  
Iron Recovery

Characteristic, hazard and iron recovery technology of red mud - A critical review

2021 ◽  
pp. 126542
Author(s):  
Xiao Liu ◽  
Yuexin Han ◽  
Fayu He ◽  
Peng Gao ◽  
Shuai Yuan
Keyword(s):  
Critical Review ◽  
Red Mud ◽  
Iron Recovery
Sign in / Sign up

Export Citation Format

Share Document