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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium 11th International Symposium on High Temperature Metallurgical Processing
Presentation Title M-22: Influence of Process Parameters on the Metal Quality at Electron Beam Melting of Molybdenum
Author(s) Katia Vutova, Vania Vassileva , Vladislava Stefanova , Maria Naplatanova
On-Site Speaker (Planned) Vladislava Stefanova
Abstract Scope Molybdenum belongs to the group of refractory and alloying rare elements, which are used in industry mainly as pure metals and as alloying components in ferrous and non-ferrous alloys. The effect of the electron beam melting and refining technology on the processing of molybdenum concentrate under different process conditions is examined in the present work. The influence of the electron beam power and refining time on the composition variation, microstructures of the metal samples, and degree of refining of molybdenum is studied in order to improve the quality of the obtained metal ingots. Thermodynamic conditions of melting and refining of molybdenum and the removal efficiency of the controlled impurities are also evaluated and discussed. The results show that a maximal overall removal efficiency is seen at 17 kW beam power for a 5 min melting time and allow us to formulate requirements on the process conditions in order to improve the quality of the obtained metal material.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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A Study on Recovery of Iron from Red Mud by Solid State Reduction Followed by Magnetic Separation
Control of the Distribution of Vacuum Arcs within Vacuum Arc Remelting with Externally Applied Magnetic Fields
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Effect of Magnetic Field on CaO-SiO2-CaF2 Mould Flux:New Insight from Molecular Dynamic Simulation
Experimental Study on Water Model of Continuous Smelting Reduction Reactor
FactSage-based Design Calculations for the Production of High Carbon Ferromanganese on Pilot-scale
High Temperature Processing of Tungsten Slag
Influence of Atmosphere on Melting Behaviour of Synthetic Slags from Ta Recycling
M-12: Effect of Steel–slag Reaction on Physicochemical Properties of Low-reactivity Mold Fluxes
M-14: Experimental Research on Gasification Dephosphorization with Coke Powder Reducing Converter Molten Slag
M-18: Fundamental Research on Preparation of High-speed Railway Grounding Line by Continuous Pouring Process for Clad
M-22: Influence of Process Parameters on the Metal Quality at Electron Beam Melting of Molybdenum
M-25: In-situ Investigation of Iron Ore Stock Pile during its Stacking and Reclaiming Process
M-2: A Novel Method to Determine the Bubble Dynamics of the Bath in a Pilot-scale Top Submerged Lance Furnace
M-32: Reduction Kinetics of Oxidized Magnetite Briquettes in Co-atmosphere
M-37: Sinter Iron Ores and Titanium Ores Used in Pelletizing
M-39: Study on Coal Injection Evaluation Method in Blast Furnace
M-40: Study on Distribution of Sulfur Element in Blast Furnace Process with Different Pellet Ratios
M-41: Study on Tuyere Coke Deterioration in the Super Large Blast Furnaces
M-43: Synthesis of Ni-Mgo Composite through Sulfates Reductive and Catalytic Decomposition
M-44: Synthesis of Porous Graphite by Dealloying of Silicon Carbide
M-5: Analysis of Post-combustion Behavior on O2 Gas Injection in Converter Process
M-6: Characterization and Treatment of Electric Arc Furnace Dusts Generated During Steel Production in Peruvian Industries
M-8: Drying Characteristic of Artificial Magnetite Pellet
Mechanical Properties of a Laser Deposited Spherical Ti4822 Alloy
Method to Quantify the Effect of Temperature and Rotational Speed on the Decrepitation of South African Manganese Ores in a Rotary Kiln
Ni Recovery from Nickeliferous Pyrrhotite Concentrates via a Thermal Concentration Process: Effects of Heat Treatment Time
Optimization of Process Parameters for the Synthesis of Mo2C on an Activated Carbon Matrix
Parameters Affecting on the Phosphorus Distribution Between Slag and Liquid Metal in BOF
Phase Equilibria in the System Al2O3-MnO-SiO2: Thermodynamic and Application
Precipitation Behavior of B2O3 Addition on CaO-Al2O3-Sc2O3 Slag System Through In-situ Observation
Preparation of Expanded Slag Ball with Blast Furnace Slag by Rotary Cup
Production of a Cobalt-Nickel-Iron Alloy from Low Grade Ore
Simulation Model for Slag/Refractory-corrosion in the Metallurgical Engineering
Solid-state Reduction Studies for Recovery of Iron from Red Mud
Technology Advances in Pyrometallurgy with Focus on Recent Development of Sustainable Processes – Experiences of Swerim Pilot Plant Activities
The Application of an Effective Equilibrium Reaction Zone Model Based on CALPHAD Thermodynamics to Steel Making
The Development of a Heat and Mass Transfer Model for a Shaft Kiln to Preheat Manganese Ore with Hot Air, Model Development Methodology
Theoretical Analysis and Experimental Verification of Formation of As-bearing Rare Earth Inclusions in Steel
Upgrading Pilot-scale Facility at MINTEK to Evaluate the Effect of Pre-heating on Smelter Operations

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