ProgramMaster Logo
Conference Tools for 2021 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Rare Metal Extraction & Processing
Presentation Title Preparation of High-grade Ammonium Metatungstate (AMT) as Precursor for Industrial Tungsten Catalyst
Author(s) Alafara Abdullahii BABA, Sadisu Girigisu, Mustapha A. Raji, Abdullah S. Ibrahim, Daud T. Olaoluwa, Kuranga I. Ayinla, Christianah O. Adeyemi, Aishat Y. Abdulkareem, Abdul G.F. Alabi, Mohammed J Abdul
On-Site Speaker (Planned) Alafara Abdullahii BABA
Abstract Scope The increasing demand for pure tungsten and its compounds considering their high tensile strength warrants their usefulness in catalyst, heavy alloy, cemented carbide, among others. This exceptional property also signals its interest by industrialists for use in the engineering and manufacturing sectors. Thus, preparation of AMT from a Nigerian wolframite ore by hydrometallurgical process was examined in sulphuric-cum-phosphoric acid solutions. During leaching, parameters such as leachant concentration, reaction temperature and particle size on ore dissolution were examined. At optimal conditions (2.0M H2SO4 + 0.15M H3PO4, 75C, -63m), 93.7% of the ore reacted within 120 minutes. The calculated activation energy of 6.93kJ/mol supported the proposed mechanism. The leachate at optimal conditions was analytically treated to obtain a pure tungstate solution. The purified solution was further beneficiated to produce a high grade AMT ((NH4)6[H2W12O40].4H2O : 96-901-3322, melting point: 98.7C, density: 2.16g/cm3), which could serves as an intermediate material for some defined industries.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Application of Eutectic Freeze Crystallization in Recycling of Li-ion Batteries
Circular Economy for Rare Earths: What are the Different Strategies, Challenges, and Opportunities?
Developed Commercial Processes to Recover Au, Ag, Pt and Pd from E-waste.
Effect of Synthesis Method on the Electrochemical Performance of LiNixMnCo1-x-yO2 (NMC) Cathode for Li-ion Batteries: A Review
Environmental Aspects of the Electrochemical Recovery of Tellurium by Electrochemical Deposition-redox Replacement (EDRR)
Environmentally Friendly Solid Phase Extraction of Critical Materials and REE from Unconventional Sources
Experimental Determination of Liquidus Temperature and Phase Equilibria of the CaO-Al2O3-SiO2-Na2O Slag System Relevant to E-waste Smelting
Extraction Chromatography for Separation of Rare Earth Elements
Extraction of Platinum Group Metals from Spent Catalyst Material by a Novel Pyro-metallurgical Process
Extraction of Rare Earth Metals: The New Thermodynamic Considerations towards Process Hydrometallurgy
Extraction of Zn, Ga, Ge and In from Zinc Plant Residues
How to Prepare Future Generations for the Challenges in the Raw Materials Sector
Innovative Reactors for Recovery of Rare Earth Elements (REE)
Introductory Comments: Rare Metal Extraction & Processing
Lithium Adsorption Mechanism for Li2TiO3
Preparation of High-grade Ammonium Metatungstate (AMT) as Precursor for Industrial Tungsten Catalyst
Rare Earth Elements Extraction from Coal Waste Using Biooxidation Approach
Recovery of Rare Earth Elements from Recycled Hard Disk Drive Mixed Steel and Magnet Scrap
Recovery of Valuable Metals from End-of-life Lithium-ion Battery Using Electrodialysis
Recycling of Rare Earths from Neodymium Magnets Using Focused Infrared and Solid Phase Extraction
Rethinking Mineral Processing and Extractive Metallurgy Approaches to Ensure a Sustainable Supply of High-tech and Critical Raw Materials
Scandium Extraction from Bauxite Residue Using Sulfuric Acid and a Composite Extractant-enhanced Ion-exchange Polymer Resin
Scandium: Leaching and Extraction Chemistry
Scenarios of Future Lithium Use, 2021-2040
Selective Separation of Co and Ni from REE in Recycling
Sodium Metal from Sulfate
Study of the Recovery of Rare Earth Elements from Ion Adsorption Clays through Perolation Leaching Processes
Study on the Enhancement of Iron Removal in the Becher Aeration by a Novel Tubular Reactor
Study on the Production of Lithium by Aluminothermic Reduction Method
Supercritical Extraction of Neodymium from NdFeB Magnet Using Organophosphorus Ligands
The Importance of Spodumene Decrepitation on the Lithium Sulfate Extraction
The Italian National Research Council Operations within the EIT Raw Materials Framework
Tool and Workflow for Systematic Design of Reactive Extraction for Separation and Purification of Valuable Components
Understanding the Feasibility for Secondary and by Product Sources to Supply Rare Earth Metals
Uranium and Thorium Removal from Rare Earth Sulfate Solutions by Ion Exchange and Solvent Extraction

Questions about ProgramMaster? Contact programming@programmaster.org