New insights on scandium separation from scandium …
The main findings of the scandium separation mechanism show that Sc-bearing minerals can effectively decompose and release scandium element after roasting, and created favorable conditions for scandium leaching with titanium dioxide …
Summary of research progress on separation and …
Solid phase reduction-magnetic separation technology is mainly composed of low-temperature reduction roasting-magnetic separation (usually lower than 1200 ℃) and high-temperature reduction …
Separation and recovery of scandium from high pressure …
All tests were carried out in a 200 mL beaker, stirred at 400 r/min by a magnetic stirrer, and immersed in a temperature-controlled water bath. (2) Metal leaching efficiency (%) ... Concentration and separation of scandium from Ni laterite ore processing streams. Metals, 7 (2017), pp. 557-564.
(PDF) The Future of Scandium Recovery from Wastes
earth metals is increasing. Scandium, which is often considered a rare earth element (REE), is a. critical metal mainly used in solid oxide fuel cells (SOFCs) and high strength aluminum alloys ...
Separation and recovery of scandium and titanium from
The scandium content in magnetic separation tailings was 0.0062%, the scandium recovery rate was 98.65%, and the iron content in magnetic separation tailings was relatively low at 2.62%, which ...
A Novel Synergetic Process for Scandium Separation from Scandium …
An effective process was proposed to extract scandium from a scandiumconcentrate with Sc 2 O 3 content of 0.006624% and titanium dioxide wastewater with Sc content of 3.661 mg/L.
Optimization Extraction of Scandium from Scandium
Materials. The V–Ti magnetite tailings was collected from Panzhihua of Sichuan Province. Scandium concentrate with a Sc 2 O 3 content of 66.24 g/t was obtained after magnetic separation, gravity separation, and grinding from the V–Ti magnetite tailings, and the scandium concentrate with a particle diameter of less than 0.074 mm. …
Comprehensive Recovery of Iron and Aluminum from …
Iron and aluminum in red mud were recovered by a reductive sintering–magnetic separation–digesting process. The raw materials were composed of ordinary Bayer red mud, MgO, Na2CO3 and C, in which MgO and Na2CO3 were used as mineralizing agents, and C as a reductive agent. Sintering orthogonal experiments …
Recovery of scandium from silicate minerals by high …
Gao et al. 20 adopted the one-stage roughing and one-stage cleaning of high gradient magnetic separation to recover Sc from the ore with a grade of 0.49 × 10 −4 wt%, ... Selective separation of iron and scandium from Bayer Sc-bearing red mud. Journal of Rare Earths, Volume 41, Issue 7, 2023, pp. 1099-1107.
Evaluation of two extraction chromatography resins for scandium …
Scandium-47 (47Sc) can be used in nuclear medicine as a therapeutic-diagnostic, or "theragnostic," radioactive medical isotope for cancer detection and treatment. The 47Sc isotope can be produced through the photonuclear reaction 48Ti(γ,p)47Sc by irradiating enriched 48Ti target material. The enriched target material necessary for …
the Kiviniemi Sc-Enriched Ferrodiorite
magnetic preconcentration conditions with process mineralogical details and produced concentrates for further testing according to the suggested processing scheme. Keywords: process mineralogy; scandium; Kiviniemi deposit; magnetic separation 1. Introduction The fifteen lanthanides plus scandium and yttrium are classified as rare …
Research on High-Pressure Hydrochloric Acid Leaching of Scandium
This research focuses on the process of hydrochloric high-pressure acid leaching using 10 to 20% HCl of two samples of non-magnetic tailings obtained by 60 min carbothermic roasting of red mud at 1300 °C and the mixture of 84.6 wt.% of red mud and 15.4 wt.% Na2SO4 at 1150 °C, respectively, with subsequent magnetic separation of …
A study on the rare earth ore containing scandium by high …
DOI: 10.1016/S1002-0721(09)60167-8 Corpus ID: 97755764; A study on the rare earth ore containing scandium by high gradient magnetic separation @article{Gao2010ASO, title={A study on the rare earth ore containing scandium by high gradient magnetic separation}, author={Likun Gao and Yunlen Chen}, journal={Journal of Rare Earths}, …
Recovery of scandium from various sources: A critical review …
A study on the rare earth ore containing scandium by high gradient magnetic separation. J. Rare Earths (2010) ... Study of adsorption behavior of a new synthesized resin containing glycol amic acid group for separation of scandium from aqueous solutions. Hydrometallurgy, Volume 165, Part 1, 2016, pp. 51-56.
Modeling of particle capture in high gradient magnetic separation: A
Magnetic field-induced mixed matrix membranes (MMMs) were used for separation of O 2 and N 2 gas according to their different magnetic properties. The double-layered MMMs were made of polyethersulfone (PES) and Pebax-1657 and super-paramagnetic Fe 3 O 4 nanoparticles (NPs) by simultaneous co-casting method. The …
New insights on scandium separation from scandium
The main ndings of the scandium separation mechanism show that Sc-bearing minerals can eectively decompose and release scandium element after roasting, and created favorable conditions for scandium leaching with titanium dioxide wastewater to achieve the purpose of scandium recovery.
Recovery of scandium from silicate minerals by high …
Gao et al. 20 adopted the one-stage roughing and one-stage cleaning of high gradient magnetic separation to recover Sc from the ore with a grade of 0.49 × 10 −4 wt%, ... Study on separation of scandium from scandium-containing titanium ore by chlorination roasting-leaching. Chin Rare Earths, 36 (2) (2015), p. 21.
Recovery of Scandium from Reservoir Silt by Electrical Separation
The scandium contained in the raw silt was increased from 6.6 g/t to 87.55 g/t by processes such as spiral tail, magnetic separation, and gravity separation. The grade of the scandium concentrate was further improved by electric separation.
Possible methodology for niobium, tantalum and scandium separation …
The scandium rough concentrate containing Sc2O3 of 76.98 g/t was obtained by magnetic separation, gravity separation, and electric separation from Sc-bearing Vi-Ti magnetite tailings in the Panxi ...
Separation and purification of scandium: From industry to …
The separation of 44 Ti from scandium target material is not trivial, even if some progress has been made recently in this field. 39,41, 42 In addition, a generator system implies the development ...
Metallurgical processes for scandium recovery from …
This paper comprehensively reviews the metallurgical processes to recover scandium from various sources. Residues, tailings and waste liquors in the production of …
A Novel Approach for Separation and Recovery of Titanium, Scandium …
The factors affecting titanium separation and scandium extraction were researched, and the optimal process conditions were determined. ... The separation and recovery of titanium experiments were conducted in an electrically heated magnetic stirrer. Acidic wastewater (100 mL) and a certain amount of phosphoric acid were added to a …
An Efficient Process to Recover Iron from Bayer Red Mud
We have investigated Bayer red mud with a TFe content of 26.86% collected from the Pingguo area of China, and have found that iron is the key metal affecting the extraction of valuable components such as Sc, Ti, and Ga. Based on this, an efficient process of roasting with calcium salt and magnetic separation has been proposed to …
A realistic description of influence of the magnetic field …
The magnetic field strength is a very important parameter in high gradient magnetic separation (HGMS). It was usually thought that the increase of magnetic field strength will lead to the decrease of the minerals' susceptibility and the matrices' surface area available for the buildup of the magnetic particles, which was responsible for the …
Selective separation of iron and scandium from Bayer Sc
In this study, we investigated the separation of iron and scandium from Sc-bearing red mud. The red mud object of our study contained 31.11 wt% total iron (TFe), 0.0045 wt% Sc, hematite (Fe 2 O 3) and ferrosilite (FeO·SiO 2) as the main Fe-bearing minerals.The Sc-bearing red mud was treated by a novel deep reduction roasting and …
Characterization and Pre-concentration of Scandium in …
Based on the sample's composition, particle size distribution and the occurrence state of scandium, studies were conducted of the pre-concentration of scandium oxide from the low-grade magnetite ore. From the results of these experiments, a beneficiation process was developed and validated based on low-intensity magnetic …
Extraction of Scandium and Iron from Red Mud
The process of leaching scandium with magnetic separation tailings conforms to the kinetic characteristics of multiphase liquid-solid region reaction, the apparent activation energy of scandium is 26.77 kJ/mol, and the leaching efficiency of scandium is controlled by the chemical reaction step. KEYWORDS: Scandium; iron;
(PDF) Selective separation of iron and scandium from Bayer …
The scandium content in magnetic separation tailings was 0.0062%, the sc andium recovery rate was . 98.65%, and the iron content in magnetic separation tailings was relatively low at 2.62%, which .
Recovery of scandium from various sources: A critical review …
A few concentration techniques were also explored, such as magnetic separation and shaking table followed by magnetic separation. Indeed, scandium content can increase due to the fact that it is associated with iron oxides ( Levard et al., 2018 ), and high magnetic fields must be applied considering most of all these oxides …
Crater Lake – Scandium Canada
From the TGZ Target, a scandium mineral concentrate was produced by using simple low-cost magnetic separation techniques. A combination of low intensity magnetic separation (LIMS) and wet high-intensity magnetic separation (WHIMS) produced a mineral concentrate yielding an impressive 88% Sc recovery as well 69% recovery of total rare …