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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Pan American Materials Congress: Minerals Extraction and Processing
Presentation Title PAN-50: The Direct Leaching of Micro-disseminated Gold Concentrate by Bromide Process and the Characterization of Leaching Products
Author(s) Chao Li, Hongxu Li, Qiankun Jing
On-Site Speaker (Planned) Hongxu Li
Abstract Scope Gold is an important industry and strategic reserves of metal, but cyanide leaching process have adverse to the environment. In this paper, an absolutely non-cyanide bromide gold-leaching system was puts forward to leaching a kind of micro-disseminated gold concentrate from China.The influence of different reagent concentration and temperature on the bromide leaching process were tested in this research, and various testing methods as X-ray diffraction (XRD), scanning electron microscopy, infrared spectroscopy, and laser particle size analysis were carried to characterize the leaching residue.Results show that the leaching rate of Au is increasing as the concentration of leaching agent and oxidant rising; temperature rise will accelerate the leaching reaction rate, gold-leaching efficiency after 8h can reach 97.93%; XRD and infrared spectroscopy testing indicate that the mineral structure is destroyed completely, the desulfurization rate of S element can reach 96%.
Proceedings Inclusion? Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)


Biotechnological Recycling of Precious Metals Sourced from Post-consumer Products
Comparative Study of Gas Reduction of Pure Zinc Ferrite and Zinc Ferrite Contained into Electric Arc Furnace Dusts
Dissolution Thermodynamics of Smithsonite in Alkaline Iminodiacetate Aqueous Solution
Extraction of Gold from Sands and Slimes Tailings Dump from Mazowe Mine, Zimbabwe
Gold Recovery from Waste Solutions of PCB Gold Plating Process using Hydro Cyclone Reactor for Demonstration Study
Investigating the Dissolution Characteristics of Strontium Sulfide
Leaching of Spent Ni-Mo Hydrodesulphurization (HDS) Catalyst in Oxalic Acid Solutions
Novel Adsorbent from Iron Ore Concentration Tailings for Toxic Cationic Dye Removal from Water
PAN-42: Biotechnologies for Water Recycling in the Mineral Industry
PAN-43: Effect of Ethylenediamine on Smithsonite Flotation
PAN-44: Electrochemical Preparation of Ti5Si3/TiC Composite from Titanium-rich Slag in Molten CaCl2
PAN-45: Kinetic Study on the Leaching of Vanadium-bearing Converter Slag with Dilute Sulfuric Acid
PAN-46: Leaching of Celestite Concentrate in Hcl Media with BACl2-NACl Addition
PAN-47: Mechanical Activation Strengthen the Leaching of Oxide-sulphide Zinc Ore
PAN-48: Production of Strontianite from Celestite Ore in Carbonate Media
PAN-49: Recovery of Zinc from Oxide–sulfide Zinc Ore through Oxidation and Chelation
PAN-50: The Direct Leaching of Micro-disseminated Gold Concentrate by Bromide Process and the Characterization of Leaching Products
Preliminary Analysis of the Application of Sensor Based Sorting on a Limestone Mine in the Region Cašapava do Sul, Brazil
Preparation Conditions and Performance of Nano/Amorphous Hybrid Oxide Coated Titanium Anode for Oxygen Evolution in Electrowinning
Preparation of High Grade Industrial Copper Compound from a Nigerian Malachite Mineral by Hydrometallurgical Process
Pressure Leaching of Hemimorphite in Ammonium Chloride Solution
Process of Improving the Flotation Using Ultrasonic Bombardment
Reduction Kinetics and Characterization Study of Synthetic Magnetite Micro Fines
Removal of Heavy Metals from Water with Nano-Sheet Molybdenite as Adsorbent
Study on Leaching Valuable Elements from Bayan Obo Tailings
Synthesis of AgCN Nanowire Membranes in Aqueous Solutions from Silver Dicyanide Ions
The Compact Flowsheet for Ore Comminution and Processing
Working Experience with the New WOX Plant to Treat Zinc Waelzoxide at ZGH Boleslaw SA, Poland

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