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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Alumina & Bauxite
Presentation Title Expertimental Investigation on Reduction of Cast Iron from Bayer Red Mud and Laterite Nickel
Author(s) Jianmin Zeng, Jiacheng Wang, Aoping He
On-Site Speaker (Planned) Jianmin Zeng
Abstract Scope In this paper, a process of extracting cast iron from red mud and laterite nickel has been proposed. Red mud, laterite nickel, CaO and coke were heated together inside an electric arc furnace so as to obtain cast iron alloy. The experiments indicated that recovery rates of cast iron alloy were from 70% to 89% when the coke content increases from 20% to 35%. The microstructure of the alloys depends mainly upon the coke content. The metallographic structure features white iron when addition of coke was below 25%. The free graphite flakes appeared when the coke content was 25%, where the microstructure can be featured cementite and stripe-shaped graphite. If the coke content gets to 30% or more, the microstructure is characterised by grey iron. It is manifested that impact work increases and hardness decreases of the alloys with the increasing of coke content, accordingly the microstructures change from white iron to grey cast iron. In conclusion, this process is a potential technology for reduction of cast iron alloys from red mud and laterite nickel.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Alumina, Iron and Titanium Extracting from Bauxite Residue with Low Lime Sinter Method
Analyzing the Bauxite Residue Amendment through the Addition of Ca and Mg Hydroxides Followed by Carbonation
Comprehensive Utilization of Red Mud: Current Research Status and a Possible Way Forward for Non-hazardous Treatment
Developing New Process for Selective Extraction of Rare Earth Elements from Bauxite Residue Based on Functionalized Ionic Liquids.
Development and Usage of Detailed Models of Technology at RUSAL Alumina Refineries
Digital Transformation in Alumina Refining
Effect of Organic Impurity on Seed Precipitation in Sodium Aluminate Solution
Effect of Sintering Conditions on the Stability of β-2CaO·SiO2 in High Sodium Carbonate Solution
Effects of Reductive Roasting with Sodium Salts on Leaching Behavior of Non-ferrous Elements in Bauxite Ore Residue
Experimental Investigation on Desiliconization of Low-grade Bauxite by Flotation Process
Expertimental Investigation on Reduction of Cast Iron from Bayer Red Mud and Laterite Nickel
Features of Pseudoboehmite from Alumina Production
Fitness-for-service Assessment and Re-rating of Flawed Alumina Feeding Vessels
Flotation of Low-grade Bauxite Using Modified Humics as Depressant
Flotation Separation of Pyrite from Refractory High-sulfur Bauxite
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Industrial Experience of Sinter Hydro-chemical Processing at Bogoslovsk Alumina Refinery
Miniplant Tests of HCl Technology of Alumina Production
Research on Alumina Preparation from Aluminium Chloride Solution by Electrolysis Process
Research on Impurity Removal of Low Grade Bauxite
Research on the Adsorption of Humic Acid on Pyrite Surface
Research on the Desulfurization of High Sulfur Bauxite
Research on the Interaction between 1-butyl-2-mercaptobenzimidazole and Pyrite
Roasting Pretreatment- low Temperature Digestion Method for Comprehensive Utilization of High-sulfur Bauxite
Specific Features of Scandium Behavior during Sodium Bicarbonate Leaching of Red Mud
Study on the Structure and Generation Mechanism of Intermediate (6AlO-OH) in Decomposition Process of Sodium Aluminate Solutions
The Impact of Backwater Iron Ions on Bauxite Flotation
The Properties of Superfine ATH Precipitated by Carbonation Method
Thermodynamics Analysis on Process of Pelletizing Chlorination of Fly Ash

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