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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Materials Processing Fundamentals
Presentation Title CaCl2-O2 Roasting of Stibnite and a Complex Copper Concentrate at 500-650C
Author(s) Rafael Padilla, Galo Brito, Maria Cristina Ruiz
On-Site Speaker (Planned) Rafael Padilla
Abstract Scope Complex copper sulfide concentrates normally contain As, Sb, Bi, Zn, Pb, as the main impurities.Conventional smelters do not treat concentrates with high levels of impurities; therefore, oxidizing roasting is normally used to remove the unwanted impurities, a process where arsenic is removed effectively but antimony and bismuth removal is deficient. Because of the poor removal of antimony in oxidizing roasting, an alternative chloridizing roasting of stibnite and complex MH copper concentrate (Ministro Hales, CODELCO, Chile) has been studied. The roasting was done with CaCl<SUB>2</SUB> in oxidizing atmosphere. In roasting at 500 - 650 C, temperature and oxygen concentration affected significantly the Sb volatilization from Sb<SUB>2</SUB>S<SUB>3</SUB>-CaCl<SUB>2</SUB> sample. At 600 C and 10 % oxygen, antimony volatilization was 60% in 30 min. In roasting the MH concentrate at 600 C and 5% oxygen, arsenic can be eliminated in less than 20 min probably as a mixture of arsenic trichloride and trioxide.
Proceedings Inclusion? Planned: None Selected

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A current efficiency prediction model based on electrode kinetics for iron and copper during copper electrowinning
CaCl2-O2 Roasting of Stibnite and a Complex Copper Concentrate at 500-650C
Chalcogenide Melts Study for High Temperature Thermoelectricity
Characterization of Non-metallic Inclusions and Clusters in Steels by Using Different Modern Analytical Techniques
Convection-Diffusion Model of Lithium-Bismuth Liquid Metal Batteries
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Dephosphorization Kinetics between Bloated Metal Droplet and Slag Containing FeO: The Influence of CO Bubbles on the Mass Transfer of Phosphorus in the Metal
Design and Enhancement of Impression Forged Cylindrical Blanks
Desulfurization of Copper-iron Reduced from Copper Slag
Effect of BO1.5 Addition on the Thermal Conductivity and the Structure of the CaO-BO1.5-AlO1.5 Mold Flux System
Effect of Chloride Ions on the Copper Extraction Using LIX 984N and Acorga M5910
Effects of aging treatment on the microstructure and mechanical properties of a nanoprecipitates-strengthened ferritic steel
Effects of Heat Treatment on the Electrochemical Performance of Al Based Anode Materials for Air-battery
Effects of High Energy Ag7+ Ion Irradiation on the Magnetic and Topographical Properties of Amorphous Co–Fe Thin Films
Effects of Mn Content on the Formation of Nanoscale Precipitates and Matrix Microstructure in the Ultra-high Strength Steels
Electron Beam Surface Hardening of AISI H13 Tool Steel
Electrovortex Flow in Metal Melts: Experiment and Simulation
Experimental Study on Formation Mechanism of Hot Charging Cracks of HSLA Steel
Ground-based Experiments Using an Electrostatic Levitator and Numerical Modeling of Convection Inside Electromagnetically-levitated Molten Iron-cobalt Droplets in Support of Space Experiments
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Manufacturing of a New Type of High Strength High Conductivity Cu–Cr Alloy
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Measurement of Thermodynamic Property of Mg in Molten Iron Using Transpiration Method
Mechanical Properties of FeCoCrNi High Entropy Alloy (HEA) Produced from Industrial Raw Materials by Induction Melting
Microstructure Characterization and Mechanical Properties of Mg-9Al (wt.%) Alloy during Low-temperature Equal Channel Angular Extrusion (ECAE)
Recovery of Platinum Group Metals Out of Automotive Catalytic Converters Scrap: A Review on Australian Trends and Challenges
Research on Sulfur Conversion Behavior in the Oxygen Pressure Acid Leaching Process for the High Indium Sphalerite
Research on the Pinpoint Controlling of CRA N08028 OCTG Microstructure and Properties
Spatio-temporal Evolution Modeling of the Laser Helical Drilling with Femtosecond Pulses
Structural and Deformation Behavior of Different Hematite Ore Pellets
Study on Emulsion Phenomena and Field Flow Pattern in Side-blown Copper Smelting Process
STUDY ON MINIMUM STARTING ENERGY OF SELF-STIRRING REACTOR DRIVEN BY PRESSURE ENERGY
Study on the Heat Treatment of UNS N 10003 Alloy after Cold Working
Surface Tension and Viscosity of Gamma-TiAl Alloys and Ti6Al4V Measured in Containerless Electromagnetic Processing under Reduced Gravity Conditions
The Effect of a Sulfur Addition on the Formation and Behavior of CaS Inclusions in a Steel Melt during a Secondary Refining Process without a Ca-treatment
The Internet of Things (IoT) for Casting with 3D Printed Sand Molds
The Investigation of Stibnite Dissolution in Na2S Solution Media
The K2SO4-CaSO4 System and Its Role in Fouling and Slagging During High-Temperature Processes
The Study of Copper Leaching from Conichalcite and Chalcopyrite Using Alternative Lixiviants
The Use of the PDA Method to Obtain Process Feedback on Inclusion Characteristics Based on Production Samples
Thermodynamic properties of magnetic semiconductors Ag2FeSn3S8 and Ag2FeSnS4 determined by the EMF method
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