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.

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.

This paper comprehensively reviews the metallurgical processes to recover scandium from various sources. Residues, tailings and waste liquors in the production of …

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.

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 ...

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 …

Depending on the feed characteristics, high-gradient magnetic separation reached recoveries between 87% and 92% with …

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 …

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 ...

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.

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 ...

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 …

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 .

In this article, we focused on the occurrence of Sc in industrial wastewaters, followed by processes and methods for the separation and the extraction of scandium …

Scandium is classified as a critical raw material by the European Union. Its beneficiation from various primary and secondary sources is currently being studied under several research and development projects. ... Depending on the feed characteristics, high-gradient magnetic separation reached recoveries between 87% and 92% with 230–310 …

PDF | On Jan 1, 2019, Peng Yan and others published Experimental Study of Pre-concentration from Silicate Containing Rare Earth Ore with Scandium by Magnetic Separation | Find, read and cite all ...

Pour the obtained emulsion into a beaker containing 1 g of magnetic PS-DVB microspheres, and stir the mixture at a constant speed of 500 rpm for more than 30 min. Magnetic separation was carried out to remove the magnetic oil-based gel microspheres containing D2EHPA, and washed with 0.1 % PVA solution for several times to wash …

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;

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 …

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.

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 …

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 …

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 ...

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 …

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}, …

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.

Hower et al. described the physical separation process in which the froth flotation was used to retrieve the carbon matter, the flotation tailings were directed to magnetic separation to remove iron-containing magnetic particles, after which the non-magnetic fraction was screened at 75 μm. It was found that relative to the feed (containing 26 ...

Solid phase reduction-magnetic separation technology is mainly composed of low-temperature reduction roasting-magnetic separation (usually lower than 1200 ℃) and high-temperature reduction …

We retrieved the literature records in Web of science with the keywords "scandium", "separation" and "extraction", and performed the data analysis of the relevant articles (Fig. 1).The annual published articles increased from 1967 to 2022 (Fig. 1 (c)).In the keyword word frequency heat map (Fig. 1 (a)) and its co-occurrence relationship …

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. …