· In this study, a roasting-hydrolysis-acid leaching process is used to extract scandium from the scandium rough concentrate. 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 area of China. …

 · The Kiviniemi scandium project in eastern Finland features a resource of 13.4 million tons at a grade of 163 parts per million scandium where scandium is mainly incorporated into the lattice of clinopyroxene and amphibole. In China, a large state-owned enterprise in Shanghai was producing 50 tons per year of scandium oxide raw material

Journal of Biomimetics, Biomaterials and Biomedical Engineering International Journal of Engineering Research in Africa

 · Scandium has a high affinity to oxygen; the high stability of Sc2 O 3 in comparison to particularly ferrous and ferric oxides, provides the theoretical foundation …

 · Abstract. A large-scale magnetite deposit containing scandium oxide is located in Yunnan province of China. The reserves of scandium oxide in the deposit are …

 · While scandium is not uncommon, with an abundance of around 25 ppm in the Earth's crust, scandium, like REE, generally does not occur in concentrations that can support commercial mining operations. …

The present invention relates to non-ferrous metal metallurgy, more particularly to a kind of method that concentrate containing scandium is produced in waste material from alumina producing and therefrom extracts high-purity mangesium oxide scandium.Provide a kind of method that the concentrate containing scandium is produced from red mud, wherein, …

Scandium Concentrate American Elements. Scandium concentrate is similar to powder in that it is made up of minute, dry particles of pure substance. Concentrate is also useful in …

 · Abstract. Global production of commercial scandium oxide currently produces only ~15–20 tonne per year. It is produced from tailings and streams of titanium and uranium industries and complies with high quality standards with Sc 2 O 3 content ≥99.9 mass%. UC RUSAL has developed a technology for Sc 2 O 3 extraction from bauxite residue that ...

As a result, scandium concentrate of 94% Sc 2 O 3, crude alumina of 93% Al 2 O 3, titanium concentrate of 41.5% TiO 2, and white carbon of 77% SiO 2 were prepared and characterized. Based on the characterization of the treatment stages and the obtained valuable products, the prospect for the application of the suggested flowsheet was …

 · The dissolution of scandium-bearing clinopyroxene generates smectitic clays that immobilise and concentrate scandium. It is subsequently trapped in the lateritic duricrust by goethite.

 · Several research projects are currently focused on the search for new sources of scandium due to its expected increasing demand in advanced technology applications. The Kiviniemi Fe-Sc-enriched mafic intrusion is a potential primary source for Sc. According to the recent investigations on the FeO component reduction in the Kiviniemi magnetic …

 · The sediment of metal oxycarbides was washed by water and dried at 100°C. The formed primary scandium concentrate had the following composition (%): 3.4 Sc 2 O …

Scandium Concentrate Crude. Recovery Of Scandium Yttrium And Lanthanides From while the scandium could be recovered from titanium ore by this process, it is of course best performed as a part of the production process for the titanium metal or titanium oxide, with the scandium being recovered from the crude chlorinator residue which ...

Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic d-block element, it was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia. Scandium is a rare-earth metal, used in small amounts but with drastic effects on properties of matter.

 · After purification of the concentrated eluate from titanium by thermohydrolysis effect, NaOH solution with an excess concentration of 20–30 g·L −1 was used for …

 · Di- (2-ethylhexyl) phosphoric acid is the most used extractant for concentrating scandium and separating it from other metals. Although it is commercially available under different names, including D2EHPA, HDEHP, P204, and DP-8R, we referred to it as P204 in this work [ 42, 53, 57 ]. Figure 2

 · It was revealed that the extraction of Sc in 4 mol/L HCl solution is still dominated by cation exchange process between P—O—H and Sc, and coordination process between P=O and Sc, with 6 molecules of extractant as dimer participating in the process.

 · 1. Introduction. Scandium (Sc), a member of rare earth elements, with an average crustal abundance of 22 ppm in the earth, is ranked the 31st in the earth's …

 · the main minerals in scandium concentrate are diopside, titanaugite, albite, hornblende, montmorillonite, mica, olivine, etc. due to the high content of aluminum, silicon, calcium, and magnesium in the scandium concentrate, and the complex mineral composition, if the scandium is leached directly by hydrochloric acid, the amount of …

The invention discloses a method for purifying crude scandium oxide, which comprises the following steps: (1) primary acid leaching: adding water into the crude scandium oxide for size mixing, adding inorganic acid to adjust the pH value of the slurry to 1.0-3.0, and filtering after reaction to obtain first-stage leaching residue and first-stage leaching liquid; (2) …

 · As a result, scandium concentrate of 94% Sc 2 O 3, crude alumina of 93% Al 2 O 3, titanium concentrate of 41.5% TiO 2, and white carbon of 77% SiO 2 were prepared and characterized. Based on the characterization of the treatment stages and the obtained valuable products, the prospect for the application of the suggested flowsheet was …

 · It is mainly used in Al–Sc alloys and scandia-stabilized zirconia. 0.35 wt%–0.40 wt% of scandium composed in the Al–Sc alloys results in many superior properties such as high strength, light weight, good thermal resistance and long durability [ 70 ].

 · Scandium is one of the rare earth metals with high value and special features, which usually exists in minerals such as titanio-magnetite, bauxite and apatite.1,2,3 Due …

 · As a result, scandium concentrate of 94% Sc2O3, crude alumina of 93% Al2O3, titanium concentrate of 41.5% TiO2, and white carbon of 77% SiO2 were prepared and characterized. Based on the ...

 · Pasechnik et al. developed a method for selective scandium extraction by removing silicon by sulfatization, during the first stage of scandium concentrate dissolving. They observed that increasing the acidity promotes the precipitation of NH 4 Sc(SO 4 ) 2, which effectively separates scandium from impurities such as Al, Fe, Zr, Ti, and Ca as ...

 · For the less soluble NH4Sc (SO4)2 a further considerable reduction of solubility has been observed in H2SO4 solutions of concentration above 3.5 М in the presence of 0.5 М NH4Cl at 20 ± 1 °C. More...

Its atomic number is 21, making it the lightest of the transition metals. Scandium is not particularly rare - its occurrence in crustal rocks is 22 around ppm. This makes scandium …

In this study, a roasting-hydrolysis-acid leaching process is used to extract scandium from the scandium rough concentrate. 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 area of China. The majority of …

It is relatively common in the earth's crust, where it readily forms as a compound oxide and tends to remain highly dispersed (low grade). Heavy weathering of surface soils can concentrate scandium, such as is found …

2  · For more information on scandium prices, or for a current quote on scandium metal or scandium oxide, please contact us. Strategic Metal Investments Ltd. 2/F – 5050 Kingsway Burnaby BC Canada V5H 4H2 +1-604-505-6138 +1-604-608-9127 info@strategic-metal Recent News. October 2022; June 2022;

An industrial site to produce scandium oxide was launched at the Ural Aluminium Smelter, where a product with a purity of 99.4% is produced. The technology and process flow chart are constantly being enhanced, which results in the improvement of the concentrate quality whilst increasing the scandium yield.

 · The scandium concentrate was generated from titanium white waste acid by extraction in a factory. The effects of the acidity, salting-out agent, extraction time, A/O ratio, initial cationic concentration, and reusability of TRPO on Sc extraction were studied. The extraction mechanism was also analyzed by FT-IR and slope analysis method.

 · Scandium has been added to aluminum alloys in the former soviet union for missiles and MIG fighter applications. The following graph was reproduced from data given by various authors at the " Scandium 94 Conference " held in Moscow. As can be seen, the addition of Scandium increases the yield strength of many aluminum alloy systems. ...

 · Abstract. Global production of commercial scandium oxide currently produces only ~15–20 tonne per year. It is produced from tailings and streams of titanium and …