ProgramMaster Logo
Conference Tools for 2023 TMS Annual Meeting & Exhibition
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Rare Metal Extraction & Processing
Presentation Title Di-phenols Functionalized Chitosan as Selective Adsorbents for Extraction of Germanium
Author(s) Madhav Patel, Athanasios Karamalidis
On-Site Speaker (Planned) Madhav Patel
Abstract Scope In the current study, catechol functionalized chitosan, C-Cat, was investigated for selective solid-phase extraction of germanium. Germanium is one of the critical elements because of its growing demand, supply risk, and inefficient production. The current Ge production processes, such as chlorination-distillation and solvent extraction, suffer from high energy requirements, high chemical consumptions, impurities co-extractions, and waste stream generations. The adsorbent was synthesized via Schiff's base reaction. The adsorbent morphology was different from the chitosan due to surface modification. C-Cat adsorbed Ge selectively in the presence of competitive ions with Kd values of 10832.0 mL/g at pH 3 and 7417.6 mL/g at pH 4. The selectivity for Ge was also observed in Ge-spiked coal fly ash leachate. The distribution coefficients were correlated with metal hydrolysis constants, and linear free energy relationships were developed for C-Cat. These LFERs can be used to predict the selectivity of C-Cat using the metal hydrolysis constants.
Proceedings Inclusion? Planned:
Keywords Hydrometallurgy, Surface Modification and Coatings, Other


An Innovated Hydrometallurgical Process for Recoveries of Critical and Rare Metals from Copper Anode Slimes
Biosorption as a Vital Tool for Metal Recovery in Effluent Treatment: Review
Di-phenols Functionalized Chitosan as Selective Adsorbents for Extraction of Germanium
Eutectic Freeze Crystallization for Recovery of Cobalt Sulfate in the Recycling of Li-ion Batteries
Experimental Investigation of Liquid Metal Leaching for Rare Earth Magnet Recycling
Extraction of Tungsten, Yttrium and Uranium from Tantalum – Niobium Ore from Muchinga Province in Zambia
Formation Rates of Different Zinc Oxide Crystal Morphologies Associated with the Recycling of Zn-ion Batteries
Leaching of Neodymium from Recycled NdFeB Magnet Powders Using Citric Acid
New Insights on Titanium(IV) Speciation to Improve the Purification of Concentrated Phosphoric Acid
Production of High-purity Mg Metal from Various MgO Resources through a Novel Electrolytic Process Using a Cu Cathode and Vacuum Distillation
Production of Micro-sized Metallic Tungsten Particles from Natural Wolframite and Scheelite via Sulfide Chemistry
Purification of an Indigenous Barite Mineral for Sustainability of Operation in the Nigerian Oil and Gas Industries
Pyrolysis of Waste Printed Circuit Boards: Optimization Using Response Surface Methodology and Characterization of Solid Product
Rare Earth Elements Extraction from an Ionic Clay from South America
Recovery and Separation of Vanadium and Tungsten from Spent SCR Catalyst by Hydrometallurgical/ Hybrid Routes
Recovery of Copper Metal from Discarded Printed Circuit Boards (PCBs) by Hydro and Electro Metallurgical Processes
Recycling of Copper and Gold from Waste Printed Circuit Boards by Leaching Followed by Solvent Extraction
Recycling of Rare Earth Elements (REEs) from Scrap Nd-Fe-B Magnets
Removal of Selenium from Chloride Media using Bioadsorbent
Separation of Rare Earth Elements from Monazite via Sulfidation
Studies on the Hydrometallurgical Recovery of Metals from Used and End of Life PCBs
Tantalum Recovery Technique for Recycling of Tantalum Coated Composite Materials
The Behaviour of Minor Metals in BOF Slag Under Different Additives

Questions about ProgramMaster? Contact