Transient crystallisation of rare earth carbonates during the hydrothermal oxidation of siderite
Melanie Maddin, Rémi Rateau, Adrienn Maria Szucs, Luca Terribili, Juan Diego Rodriguez‐Blanco
Abstract
govern this crystallisation sequence. Continued oxidation promotes decarbonation processes by acidifying the aqueous solution, dissolving all carbonates, and resulting in hematite and cerianite crystallisation as thermodynamically stable phases. Understanding iron carbonate, oxide and REE interactions can inform new resource targets and improve recovery and separation techniques.
Topics & Concepts
SideriteHydrothermal circulationRare-earth elementRare earthAqueous solutionEarth (classical element)CrystallizationChemical engineeringGeologyGeochemistryChemistryMineralogyCalcitePhysical chemistryOrganic chemistryPhysicsMathematical physicsEngineeringMine drainage and remediation techniquesClay minerals and soil interactionsMinerals Flotation and Separation Techniques