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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Rare Metal Extraction & Processing
Presentation Title Purification of a Nigerian Wolframite Ore for Improved Industrial Applications
Author(s) Alafara Abdullahi Baba, Muhammed O Muhammed, Mustapha A Raji, Kuranga I Ayinla, Misitura Lawal, Folahan A Adekola, Abdul GF Alabi, Rafiu B Bale
On-Site Speaker (Planned) Alafara Abdullahi Baba
Abstract Scope Increasing demands for pure wolframite ore in the form of ammonium paratungstate (APT), tungsten oxide cannot be over emphasized. Thus, treatment of a Nigerian wolframite ore containing admixtures of scheelite (CaWO4 : 96-900-9631) and stolzite (PbWO4 : 96-900--9813) by hydrometallurgical route was investigated in hydrochloric acid chelated with phosphoric acid to extract tungsten via solvent extraction. During leaching, parameters such as leachant concentration, chelate dosage and reaction temperature on ore dissolution were examined. At optimal conditions (1.5 mol/L HCl+2.0 mol/L H3PO4 solution; 75C), 95.0% of the initial 10g/L ore reacted within 120 minutes. The derived activation energy of 23.43kJ/mol supported the proposed dissolution mechanism. The unreacted product analyzed by XRD was found to contain siliceous impurities. Tungsten recovery from leachate was carried out by solvent extraction with Aliquat 336 in kerosene. Pure tungsten was recovered as APT and beneficiated to produce high grade tungsten oxide of industrial values.
Proceedings Inclusion? Planned:


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Batch Studies for Removing Vanadium(V) and Chromium(VI) from Aqueous Solution Using Anion Exchange Resin
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D-54: Effects of Preoxidation on the Kinetics of Iron Leaching from Ilmenite in Hydrochloric Acid Solution
D-55: Experimental Modeling of Nodulation in Copper Electrorefining
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Effect of CaO Additive on the Interfacial Reaction between the BaZrO3 Refractory and Titanium Enrichment Melt
Electrochemical and Spectroscopic Study of Eu(III)/Eu(II) Couple in the Ehtylmethylimidazolium Bis(trifluromethanesulfonyl)imide Ionic Liquid
Electrochemical Formation of Tb Alloys in Molten LiCl-KCl Eutectic Melts and Separation of Tb
Electrodeposition of γ-MnO2 from Manganese Nodule Leach Liquor: Surface Modification and Electrochemical Applications
Extracting Uranium and Molybdenum from Refractory U-Mo Associated Ore
Extraction of Vanadium and Chromium from the Material Containing Chromium, Titanium and Vanadium
Extraction Separation of V and Fe in High Acid and High Iron Solution
FEM Simulation of Nodulation in Copper Electrorefining
Microfluidic Solvent Extraction of Zinc from Low Concentration Sulfate Solution Using D2EHPA
Present Status and Development of Preparation Technologies of Titanium-rich Materials
Purification of a Nigerian Wolframite Ore for Improved Industrial Applications
Recovery of Lithium from Brine with MnO2 Nanowire Ion Sieve Composite
Recovery of Manganese from Scrap Batteries of Mobile Phones
Recovery of Valuable Metals from Waste Printed Circuit Boards by Using Iodine-Iodide Leaching and Precipitation
Review on the Processes for the Recovery of Rare Earth Metals (REMs) from Secondary Resources
Selective Oxidation of Cerium in Rare Earth Solutions, a Comparison of Four Oxidants
Selective Reduction and Separation of Europium from Mixed Rare-earth Oxides Recovered from Waste Fluorescent Lamp Phosphors
Study of the Mechanochemical Calcification for Mixed Rare Earth Concentrate
The Demonstration Pilot Plant Results for the Search Minerals Direction Extraction Process for Rare Earth Recovery
The Electrolytic Production of Rare Earths from their Oxides
The Management of Lead Concentrate Acquisition in “Trepca”
The Recovery of Cesium Salts from the Taron Deposit
Thermodynamic Study of Ga Extraction for Trace Element Analysis by ICP-MS
Thermodynamics Analysis on the Process of Decarburization and Vanadium Protection by CO2

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