Extraction 2018

Proceedings of the First Global Conference on Extractive Metallurgy
Herausgegeben:Davis, Boyd R.; Moats, Michael S.; Wang, Shijie; Gregurek, Dean; Kapusta, Joël; Battle, Thomas P.; Schlesinger, Mark E.; Alvear Flores, Gerardo Raul; Jak, Evgueni

• Gebundenes Buch

Produktbeschreibung

This three volume set presents papers from the first collaborative global metallurgy conference focused exclusively on extractive topics, including business and economic issues. Contributions examine new developments in foundational extractive metallurgy topics and techniques, and present the latest research and insights on emerging technologies and issues that are shaping the global extractive metallurgy industry. The book is organized around the following main themes: hydrometallurgy, pyrometallurgy, sulfide flotation, and extractive metallurgy markets and economics.

Produktdetails

• The Minerals, Metals & Materials Series
• Verlag: Springer / Springer International Publishing / Springer, Berlin
• Artikelnr. des Verlages: 978-3-319-95021-1
• 1st ed. 2018
• Seitenzahl: 3068
• Erscheinungstermin: 19. August 2018
• Englisch
• Abmessung: 241mm x 160mm x 180mm
• Gewicht: 5183g
• ISBN-13: 9783319950211
• ISBN-10: 3319950215
• Artikelnr.: 52710008

Autorenporträt

The Minerals, Metals & Materials Society (TMS) is a member-driven international professional society dedicated to fostering the exchange of learning and ideas across the entire range of materials science and engineering, from minerals processing and primary metals production, to basic research and the advanced applications of materials. Included among its nearly 13,000 professional and student members are metallurgical and materials engineers, scientists, researchers, educators, and administrators from more than 70 countries on six continents.

Inhaltsangabe

Part 1. Pyrometallurgy Keynotes.- Role of Research in Non-ferrous Metallurgy Development - Peter Hayes Contributions To Modern Pyrometallurgy.- The Role of Research in Pyrometallurgy Technology Development - From Fundamentals to Process Improvements - Future Opportunities.- Sulfide Smelting: Thirty-Five Years of Continuous Efforts to Find New Value Adding Solutions.- The Changing World of Metallurgy Education.- Part 2. 7th International Symposium on Advances in Sulfide Smelting.- Sulfide Smelting Development in Japan during the Past Half Century.- Review of Boliden Harjavalta Nickel Smelter.- Redesign and Rebuild of the Pan Pacific Copper Flash Smelting Furnace.- From Fundamentals to Furnace Control - Making the Most of Modern Technologies.- Pyrometallurgical Processing of Desulphurization Slags.- High Temperature Phase Formation at the Slag/Refractory Interphase at Ferronickel Production.- ISASMELT(TM) Technology for Sulfide Smelting.- Refractory Design and the Role of Numerical Simulations.- Wear Phenomena in Non-ferrous Metal Furnaces.- A Scientific Roadmap for Refractory Corrosion Testwork.- Investigation of Refractory Failure in a Nickel Smelting Furnace.- Mathematical Modeling of Waterless Matte Granulator for Debottlenecking of Conventional Sulfide Smelters.- Desulfurization of the Non-Ferrous Smelter Flue Gases Based on Scrubbing with a Carbonate Eutectic Melt and Natural Gas Regeneration.- Advanced Thermochemical Fundamental and Applied Research to Improve Integrity of the Steel Water Jacketed Furnace at Port Pirie.- Sustainable Development Considerations in Primary Copper Smelting.- Influence of Arsenic on the Chemical Wear of Magnesia-chromite Refractories in Copper Smelting Furnaces.- Improved Copper Smelter and Converter Productivity through the Use of a Novel High-grade Feed.- Semi-discrete Dynamics and Simulation of Peirce-Smith Converting.- Development of Continuous Radar Level Measurement for Improved Furnace Feed Control.- Research on Recovery of Valuable Metals in Waste Acid from Copper Smelting Flue Gas Acid-making and Reduction and Harmless Treatment of Solid Wastes.- Fundamental Process Equilibria of Base and Trace Elements in the DON Smelting of Various Nickel Concentrates.- Challenges and Opportunities of a Lead Smelting Process for Complex Feed Mixture.- Application of MPE model to Nickel Smelting.- Practice on Exploration of Oxygen-enriched Converting Industrial Production by Kaldo furnace.- Ust-Kamenogorsk Metallurgical Complex : A Silent Achiever.- Trace Metal Distributions in Nickel Slag Cleaning Furnace.- Case Study on the Application of Research to Operations - Calcium Ferrite Slags.- Kinetics of Oxidation of Pyrrhotite.- Formation Mechanism of Ferronickel Alloy due to the Reaction Between Iron and Nickeliferous Pyrrhotite at 850-900 °C.- Two-step Copper Smelting Process at Dongying Fangyuan.- ISASMELT(TM) - Flexibility in Furnace Design.- Investigation of Oxygen Bottom Blown Copper Smelting Process.- Top SubmergedLance Furnace Lining Cooling System Upgrade.- Application Study on the Technology of Reducing Cu in Discarded Slag.- Thermodynamic Consideration of Copper Matte Smelting Conditions with Respect to Minor Element Removal and Slag Valorization Options.- Optimizing Smelter Uptime through Digital Asset Management.- Reducing Refining Cycle Times to Extend Anode Furnace Campaign Life at Kennecott Copper.- Smelting Mechanism in the Reaction Shaft of a Commercial Copper Flash Furnace.- Progressing Towards Furnace Modernization by Utilizing Comparative Analysis of Acousto Ultrasonic-Echo (AU-E) Monitoring: Case Studies.- Kinetics of Roasting of a Sphalerite Concentrate.- Thermodynamic Modeling of Oxygen Bottom-Blowing Continuous Converting Process.- Thermodynamic Considerations of Copper Complex Resources Smelting Process.- Part 3.- Peter Hayes Symposium on Pyrometallurgical Processing.- Peter Charles Hayes' Contributions to Metallurgical Research: Brief Biography and List of Publications.- Integrated Pyrorefining of Lead at Teck's Trail Operations.- Relating Reported Carbon Dioxide Emissions to Iron and Steelmaking Process Details.- Process Zones Observed in a 48 MVA Submerged Arc Furnace Producing Silicomanganese According to the Ore-based Process.- Heat Transfer to Copper Coolers in Freeze Lined Furnaces: The Role of Radiation and the Influence of Slag Liquidus.- Interfacial Reaction between Magnesia Refractory and EAF Slag.- Kinetics of Dephosphorisation of Iron Carbon Alloys; the Importance of Competing Reactions, Slag Properties and CO Bubbles.- A Study of Cementite Formation in the Reduction of Hematite by CO-CO2 Gas Mixture Using High Temperature XRD.- Condensation of SiO and CO in Silicon Production - A Literature Review.- Phase Transformations from Quartz to Cristobalite.- Forming Micro-bubbles in Liquid Steel.- Innovative Applications of Bubbles and Drops to Ferrous Process Technology.- Carbochlorination of Low-grade Titanium Slag to Titanium Tetrachloride inMolten Salt.- Calciothermic Reduction and Electrolysis of Sulfides in CaCl₂ Melt.- Reaction Behavior of Phosphorus in Multi-phase CaO-FeOX-SiO2-P2O5 Flux System.- Microanalysis and Experimental Techniques for the Determination of Multicomponent Phase Equilibria for Non-ferrous Smelting and Recycling Systems.- Thermodynamic Study on the Equilibrium of Platinum Group Metals between Slag and Molten Metals.- High Temperature Recovery of Rare Earth Ortho-Ferrites from Permanent Magnets.- On the Evaporation of S from Liquid Fe-C-S Alloy.- Extraction of Pig Iron and Ferrosilicon from Low-grade Bauxite Ores.- Kinetics of Bauxite Residue Sintering.- Multicomponent Thermodynamic Databases for Complex Pyrometallurgical Processes.- Verification of Permeability and Forchheimer Drag Coefficients of Al₂O₃ Ceramic Foam Filters (CFF) at High and Low Flow Rates.- Computational Modeling of a Secondary Lead Reverberatory Furnace: Effect of Burden Geometry.- Development ofa Thermodynamic Database for the Multicomponent PbO-"Cu2O"-FeO-Fe2O3-ZnO-CaO-SiO2 System for Pyrometallurgical Smelting and Recycling.- Reduction in GHG Emissions of Steel Production by Direct Injection of Renewable Biocarbon.- Preparation of Ferronickel from Nickel Laterite Ore via Semi-molten Reduction Followed by Magnetic Separation.- Thermodynamic Modeling of the Solid State Carbothermic Reduction of Chromite Ore.- Production of Ferromanganese Alloys from Silicomanganese Sludge and an Iron Source.- New Paradigms for Iron Ore Pelletization.- The In Situ Micro Raman Study of the NO3- Electrochemical Behavior in Molten NaNO3-KNO3 Mixtures.- Influence of Manganese on Dissolution of Graphite in Manganese Iron Alloys.- Experimental Investigation of Pyrometallurgical Treatment of Zinc Residue.- Dynamic modelling of molten slag-matte interactions in an industrial flash smelting furnace settler.- High Temperature Characteristics of Slags Originating from the Production of Synthetic Tantalum Concentrate.- Recovery of Nickel and Vanadium from Heavy Oil Residues using DC Plasma Smelting.- Iron Segregation Roasting Processes.- Towards a Microwave Metal Extraction Process.- The Influence of Aluminum on Indium and Tin Behavior in Secondary Copper Smelting.- Behavior of Nickel as a Trace Element and Time-dependent Formation of Spinels in WEEE Smelting.- The Distribution of Sn between CaO-CuO_x- FeO_y-SiO₂ Slag and Copper Metal at 1300 \176 C.- Gaseous Reduction of Mn ores in CO-CO2 atmosphere.- Optimization of Slag Composition in View of Iron Recovery and Dephosphorization in EAF Process.- A New Pyrometallurgical Recycling Technique for Lead Battery Paste without SO2 Generation - A Thermodynamic and Experimental Investigation.- Understanding Viscosity-structure Relationship of Slags and its Influence on Metallurgical Processes.- Reduction of Manganese Ore Pellets in a Methane-containing Atmosphere.- Kinetics of Reduction-carburization of Synthetic (Fe,Mg)(Cr,Al₂O₄ Solid Solutions by Ar-CH₄-H₂ Gas Mixtures.- Chemical Reactivity and Thermal Stability of the Phosphate Binder used in Ceramic Foam Filters (CFFs).- Part 4. Hydrometallurgy Keynotes.- The Evolution of Cobalt-Nickel Separation Technologies: Fifty Years of Solvent Extraction and Ion Exchange.- Minimizing the Hydro in Hydrometallurgy.- Part 5. Hydrometallurgy 2018.- Hydrometallurgical Extraction of Lead in Brine Solution from a TSL Processed Zinc Plant Residue.- Alkaline Metals Removal from Radioactive Wastewater by Combined CO2 Capture and Adsorption into Bone Char.- Synthesis and Properties Characterization of Crystalline Polyferric Sulfate Adsorbent Used for Treating High As()-content Contaminated Water.- Custom Fiberglass Reinforced Plastic Piping (FRP) Applications in Mineral Processing.- Electrochemical Behavior of Chalcopyrite in Presence of Sodium Peroxodisulfate.- Alternative Lixiviant for Copper Leaching fromChalcopyrite Concentrate.- Hydrometallurgical Processing of Copper-Arsenic Concentrates.- Sustainable Development Considerations in Copper Hydrometallurgy.- Improved Process for Leaching Refractory Copper Sulfides with Hydrogen Peroxide in Aqueous Ethylene Glycol Solutions.- Copper Recovery from the Mine Tailings by Combination of Flotation with Highpressure Oxidative Leaching and Solvent Extraction.- Douglas Centenary Commemoration - 1918-2018 Engineering the Science: James Douglas, Early Hydrometallurgy and Chile.- Making the Right Selection: A Comparative Analysis for the Treatment of Refractory Gold Concentrates.- Evolution of Metallurgical Parameters at Mantoverde Heap Leaching Operation.- The Effect of Aeration on Chalococite Heap Leaching.- Study of the Diffusion of Cu(II) as an Oxidant Through Simulated Particle Pores in a Novel Model Apparatus.- Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production.- The Effects of Experimental Variables on Iron removal from Nitrided Malaysian Ilmenite by Becher Process.- Water: An increasingly valuable and Challenging Resource for the Mining and Metallurgical Industry to Manage Effectively.- Development of an Encapsulation Process to Extend the Stability of Scorodite under Wider pH and Redox Potential Range Conditions.- Arsenic Removal from Arsenic Bearing Materials Produced from Metallurgical Processes of Copper, Lead and Zinc.- Modular Reactors and Utilization in Small Scale Direct Leaching Zinc Plant Expansions.- Jarogain Process - A Hydrometallurgical Option to Recover Metal Values from RLE Zinc Residue and Steel Dust.- The Betts Process at Trail Operation - Experiences from Over a Century of Operation.- Building A Cloud-based Operator Training Simulation Software for Pressure Oxidation Process.- An Approach to Evaluate the Effect of Organic Compounds (Impurities and Additives) on Metal Electrowinning.- A Comprehensive Model for Metal Electrowinning Processes.- Characterizing the Role of Polyacrylamide Additives in Copper Electrowinning.- .- Manganese-Chloride Interactions on Pb-Ag Anode Behavior.- Pb-Ca-Sn Anode Potential as a Function of Cobalt, Iron and Manganese in Synthetic Sulfuric Acid Electrolytes.- The Effect of Anodic Potential on Surface Layers of Chalcopyrite During Ammonia-ammonium Chloride Leaching.- Treatment of Arsenic Sulfide Sludge for Arsenic Stabilization and Copper Extraction.- Study of the Rate Controlling Steps in the Removal of Magnesium Impurities in Hydrogen Assisted Magnesiothermic Reduction of TiO2 by Leaching.- EMD Deposition on Mn₂O₃/Ti Anode for Manganese Recovery from Zinc Electrowinning Solutions.- Pilot Plant Commissioning and Operations for Copper Sulfide In Situ Indirect Bioleaching.- The Dewatering Behaviour Of Transformed Ferri-oxyhydroxide Precipitates Formed Under Moderate Temperature And Varying Fe(III) Concentrations.- The Hydrothermal Reaction and Kinetic for Enargite.- In Situ Precipitation of Scorodite in Atmospheric Leaching of Enargite.- Solubility of Rare Earth Salts in Sulphate-Phosphate Solutions of Hydrometallurgical Relevance.- Pressure Oxidation of Enargite Concentrates Containing Gold and Silver.- Emulsion Mediated Low Temperature Pressure Leaching of Base Metals from Mixed Sulfide Minerals through Enhanced Oxygen Mass Transfer.- Equipment Selection for Chloride Circuits: Challenges and Opportunities.- Understanding Cyanidation of Silver from Batch and Continuous Medium Temperature Pressure Oxidation Generated Residues.- Effect of DO, Free Cyanide and Mineralogy on Gold Cyanidation Mechanism; an Electrochemical and Surface Analysis Study.- Activation and Deactivation Effects of Lead on Gold Cyanidation.- Australian Hydrometallurgy Research and Development.- Dezincing of Galvanized Steel by Sulfuric Acid Leaching.- Extraction of the Surface-coated Metals from Waste Acrylonitrile Butadiene Styrene Plastics in an Ammoniacal Solution.- Comparative Evaluation of Sulfuric and HydrochloricAcid Atmospheric Leaching for the Treatment of Greek Low Grade Nickel Laterites.- Novel Process for Comprehensive Utilization of Iron Concentrate Recovered from Zinc Kiln Slag.- Selection of microorganism for the bio-oxidation of a refractory gold-concentrate with focus on the behaviour of antimony sulphides.- Gold Leaching by sodium chloride and calcium hypochorite solutions.- The kinetic of atmospheric acid leaching of Brazilian lateritic nickel.- Hydrolytic Precipitation of Nanosized TiO₂ Phases for use as Photocatalytic Sorption Media in Effluent Treatment.- Oxygen Pressure Leaching Behavior of Nickel from Black Shale.- Part 6. Gordon Ritcey Symposium: Advances in Hydrometallurgical Solution Purification Separations.- The Feasibility of Separation of Rare Earth Elements by Use of Electrodialysis.- Separation of Cobalt and Metals in Acidic Chloride Solutions Using Diffusion Dialysis.- Application of Donnan Dialysis to the Separation and Recovery of Cations During Hydrometallurgical Recycling of Lithium Ion Batteries.- Electrolytic Salt Splitting for Sulfuric Acid and Caustic Recovery: Can it be Cost-effective?.- The Industrial Application of Ulltrafiltation and Reverse Osmosis for the Recovery of Copper, Silver and Cyanide from Gold Leach Liquors.- Extraction of Clean Water from Contaminated Effluents by Forward Osmosis.- Preliminary High Rate Compressible Media Filtration Provide Promising Benefits For Leach Liquor Clarification.- A Review on Application of Crown Ethers in Separation of Rare Earths and Precious Metals.- Cadmium and Nickel Adsorption Study using Biosorbent.- Imprinted Resin - The 21st Century Adsorbent.- Nickel Recovery from Hyperaccumulator Plants Using a Chelating Resin.- Advances in the Development of Electrostatic Solvent Extraction for Process Metallurgy.- Experimental Study and CFD Simulation of a Pulsed Solvent Extraction Column with Novel Ceramic Internals.- Outotec's VSF®X Implementation to Provide Modular Solvent Extraction Technology.- Settling Behavior and CFD Simulation of a Gravity Separator.- Equilibrium Modeling of Solvent Extraction and Stripping of Copper(II), Nickel(II), and Ammonia for Ammoniacal Process Using LIX 84-I.- Modelling Solvent Extraction as a Chemical Equilibrium.- Liquid-liquid Extraction of Cobalt(II), Nickel(II) and Manganese(II) from Acidic Chloride Media.- New Technological Advances, Challenges and Opportunities in Solvent Extraction from Energy Storage.- Separation and Purification of Value Metals from Aqueous Chloride Solutions by Solvent Extraction.- Recovery of Palladium from Spent Catalysts - A Critical State-of-the-Art.- Unique Hydrometallurgical Process for Copper-Anode Slime Treatment at Saganoseki Smelter and Refinery.- Separation of Lead from Chalcopyrite Using Resin-in-Pulp.- Ion Exchange Resin - Pilot and Resin Testing.- Antimony and Bismuth Control in Copper Electrolyte by Ion Exchange.- Development and Screening for Resins to Recover REE and Scandium from DifferentSources.- Green Chemistry Principles Applied to the Selective Separation and Purification of Specialty Metals Using Molecular Recognition Technology.- Breakthrough in Uranium Recovery from Saline Liquors by Ion Exchange.- The Use of Ion Exchange to Improve Revenue via the Removal of Impurities.- Selective Separation of Iron from Simulated Nickel Leach Solutions Using Ion Exchange Technology.- Recovery of Copper Nanoparticles from AMD by Cementation with Iron and SDS.- Separation of Uranium and Molybdenum from Alkali Leaching Solution of U-Mo Ore.- Separation of Iron (III) and Nickel (II) from Acidic Sulfate Leaching Solution of Molybdenum-Nickel Black Shale.- Part 7. Processing of Critical Metals.- Material Criticality: Comparing China, the EU, Japan and the USA.- Lithium Extraction and Utilization: A Historical Perspective.- Extraction of Lithium from Brine - Old and New Chemistry.- Development of Sileach\174 Technology for the Extraction of Lithium from Silicate Minerals.- Lithium and Boron Extraction from the Rhyolite Ridge Ore, Nevada USA.- Assessment of Some Lithium Pegmatite Ore Bodies to Determine their Amenability to Processing for the Extraction of Lithium.- Revisiting the Traditional Process of Spodumene Conversion and Impact on Lithium Extraction.- Flowsheet Development for Benefication of Lithium Minerals from Hard Rock Deposits.- Hydrometallurgical Extraction of Rare Earth Elements from Coal Sources.- Rapid and Selective Leaching of Actinides and Rare Earth Elements from Rare Earth-Bearing Minerals and Ores.- Supercritical Fluid Extraction of Rare Earth Elements from NiMH Battery.- Extraction and Purification of Rare Earth Elements and Cobalt from NdFeB Magnet Wastes.- Sulfuric Acid Baking and Leaching of Rare Earth Elements, Thorium and Phosphate from a Monazite Concentrate.- Development of a Metallurgical Process for Eramet's Mabounié Nb-REE Project.- SCRREEN - A European Expert Network on Critical Raw Materials.- Selective Extraction of Rare Earth Elements from Rich Iron Ores.- Leaching Kinetics of Rare-Earth Elements from Complex Ores by Acidic Solutions.- Selective Extraction and Recovery of Rare Earth Metals (REMs) from NdFeB Magnet Grinding Sludge.- Recovery of Phosphorous and Rare Earth Elements from an Apatite Concentrate.- Hydrothermal Modification of Phosphogypsum to Improve Subsequent Recovery of Rare Earths.- Study of the Deportment of REEs in Ion Adsorption Clays towards the Development of an In-situ Leaching Strategy.- Thermodynamics of Tungsten Ores Decomposition Process Options.- Recovery of Tungsten from Spent V2O5-WO3/TiO2 Catalyst.- Scrap Recycling of Tungsten-Based Secondary Material for the Recovery of Tungsten Monocarbide (WC) and Other Valuable Constituents Using an Acid Leach Process: A Preliminary Study.- Solubility of Germanium Dioxide in Commonly Used Acids - Effect of Acid Strength, Temperature and Water Activity.- Research on the Behavior of Germanium in the Leaching Process of Germanium-bearing Zinc Oxide by Sulfuric Acid.- Natural Graphite Purification through Chlorination in Fluidized Bed Reactor.- Critical Materials Traceability: More Important than Metallurgy.- A Process Flowsheet for the Extraction of Niobium, Titanium and Scandium from Niocorp's Elk Creek Deposit.- Recycling of Li-Ion and Li-Solid State Batteries: The Role of Hydrometallurgy.- Hydrothermal Production of Lithium Metal Silicate Powders with Controlled Properties for Application to Li-Ion Batteries.- Production of Purified Lithium Salts with a One-Stage Solid Phase Extraction (SPE) System.- Electrochemical and Frequency Assisted Separation Methods for Lithium-7 Enrichment From Liquid Media.- Fundamental Understanding of the Flotation Surface Chemistry of Rare Earth Minerals.- The Simulation and Preliminary Studies on Bear Lodge Ore Flotation.- Efficient Recovery of Neodymium from Neodymium-Iron-Boron Magnet.- Recovery of REEs from End-of-Life Permanent Magnet Scrap Generated in WEEE Recycling Plants.- A Comparison Between Batch and Continuous Processes in Impurity Removal from REE Water Leach Solution by Lime and Limestone Neutralization.- Innovative Coupled Hydrometallurgical and Pyrochemical Processes for Rare Earth Recycling.- REE recovery from the fern D. dichotoma by acid oxalic precipitation after direct leaching with EDTA.- Extraction of Cobalt and Nickel from a Pyrrhotite Rich Tailings Sample via Bioleaching.- Vanadium Extraction from Low Concentrated Iron Bearing Sources by a New Method.- Recovery of Lithium from the Great Salt Lake Brine.- Crystallization of a Pure Scandium Solid Phase from Solvent Extraction Strip Liquors.- Innovative and Sustainable Valorization Process to Recover Scandium from Canadian Bauxite Residue.- Extraction of Scandium (Sc) using a Task-Specific Ionic Liquid Protonated Betaine bis(trifluoromethylsulfonyl)imide [Hbet][TF2N].- Development of Scandium-Recovery Process from Titanium-Smelting Residue.- Early Separation of Cerium from Mixed Rare Earths: A Review of Methods and Preliminary Economic Analyses.- Oxidative Removal of Cerium from Rare Earth Elements Mixed Chloride Solution.- Alternatives to 2-Ethylhexyl Phosphonic Acid, Mono-2-Ethylhexyl Ester for the Separation of Rare Earths.- Production of Separated Rare Earth Elements (REE) from a Quebec Deposit.- Separation and Purification of Rare-Earth Elements Based on Electrophoretic Migration (Part II).- Radionuclide Removal from Ore and REE-bearing Minerals by Leaching and Ion Exchange Separation.- Influence of substrate properties on the selective leaching performance of Co from cemented carbides.- Rare-Earth Elements Recovery from Nd-Fe-B Hard Magnets by Hydrometallurgical Processes.- Part 8. Sulfide Flotation.- The Value of Incremental Performance Improvement in Concentrators - How to Secure and Quantify Small Gains.- The Use of Diagnostic Leaching for Flotation Insight.- Molybdenite Polytypism and its Implications for Processing and Recovery: A Geometallurgical-based Case Studyfrom the Bingham Canyon Mine, Utah.- The Importance of Understanding Mineralogy Drivers for Flotation Performance.- Mixed Collectors in Sulphide Flotation - Valuable Performance Gains.- The Role of Soluble Sodium Silicate for Enhancing Flotation Selectivity of Sulphides towards Grade and Recovery Improvements: Example from a Cu-sulphide Ore.- A Reliable Solution for Pumping Mineral Froth with Challenging Froth Volume Factors.- A Fundamental Study of Di-Sodium Carboxymethyl Trithiocarbonate (Orfom® D8) Depressant in Flotation Separation of Copper-Molybdenum Sulfides.