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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Rare Metal Extraction & Processing Symposium
Presentation Title Hydrometallurgical Extraction of Rare Earth Elements and Phosphorous from Low Grade Mine Tailings
Author(s) Sebastiaan Peelman
On-Site Speaker (Planned) Sebastiaan Peelman
Abstract Scope To alleviate the dependency of rare earth elements (REE) import from China the Kiruna iron ore mine tailings are being considered as a new REE resource. These tailings, after beneficiation, contain approximately 5000 ppm of rare earths, concentrated in apatite and monazite minerals. To economically extract the REE from these tailings the phosphorous contained within the apatite must also be extracted and the waste production of the process should be minimal. To achieve the extraction of REE and phosphorous a leaching process with HNO3 is proposed. This produces H3PO4 from the apatite while simultaneously dissolving the REE. The resulting leach liquor is then cooled to remove the unwanted Ca as Ca(NO3)2. ICP-ms analysis of the leach liquor reveals extraction ratios of between 75% and 100% for the heavy REE (Y, Eu, Dy, …) and below 40% from the light REE (Ce, La). Full phosphorous extraction was also achieved.
Proceedings Inclusion? Planned: A print-only volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Adsorption of Platinum and Palladium from Hydrochloric Acid Media by Hydrothermally Treated Garlic Waste Gel
Adsorptive Recovery of Palladium and Platinum from Acidic Chloride Media Using Chemically Modified Persimmon Tannnin
Calcined Nanocrystaline Layered Double Hydroxides for the Removal of Arsenate and Arsenite
Hide details for [<a href="/PM/PM.nsf/ApprovedAbstracts/1209ED12F181617585257E5800271B09?OpenDocument">Direct Solvent ExtractioDirect Solvent Extraction of Nickel from Sulfuric Acid Leach Solutions of Low Grade and Complicated Nickel Resources Using a Novel Extractant of HBL110
[Replication or Save Conflict]
Experimental Study on Valuable Metals Dissolution from Copper Slag
Fluorination Behavior of Uranium and Zirconium Mixture for Fuel Debris Treatment
Hydrometallurgical Extraction of Rare Earth Elements and Phosphorous from Low Grade Mine Tailings
Hydrometallurgical Recovery of Rare Earth Metals from Spent FCC Catalysts
Investigation of Iron Removal from Reduced Upgraded Titania Slag Using Mild Acids
Preparation and Analysis of Nd2O3 Doped Apatite Concentrate for Pyrometallurgical Recovery of Rare Earth Element
Production of Tungsten by Pulse Current Reduction of CaWO4
Recovery and Purification of In3+ from Zinc Hydrometallurgical Process in a T-junction Microchannel
Recovery of Yttrium and Neodymium from Copper Pregnant Leach Solutions by Solvent Extraction
The Search Minerals Direct Extraction Process for Rare Earth Element Recovery
U-1: Thermal Decomposition of Acid Strontium Oxalate
U-2: Treatment of a Complex Rare Earth-niobium-iron Associated Ore by a Novel Metallurgical Process
U-3: Upgrading Platinum from Spent Alumina-supported Catalyst by a Roast-leaching Process

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