byproduct material in China (iron ore, rare earths, titanium, and zirconium), Kazakhstan (uranium), Philippines ... Scandium lacks affinity for the common ore-forming anions; therefore, it is widely dispersed in the lithosphere and forms solid solutions with low concentrations in more than 100 minerals. Scandium resources have been identified in
It is very important to recover scandium from primary ore, analyze the physicochemical properties of main scandium bearing minerals, select reasonable …
A study on the rare earth ore containing scandium by high gradient magnetic separation 623 tion can be only used to recover ilmenite; The magnetism of the main minerals is weaker than that of magnetite and ti- tanomagnetite, but superior to gangue minerals such as silica, so the enrichment of the main minerals containing Sc can be …
Scandium ores with high scandium content can be recovered using pyro-metallurgical processes. The energy consumption, on the other hand, is substantial. Scandium is frequently enriched in residues, slags, tailings, and waste liquors and is primarily produced as a by-product of ore processing [21,22].
The reserves of scandium oxide in the deposit are estimated to be > 40,000 tons. With the aid of EDS analysis and polarizing microscopy, samples of the ore were examined, and the different types of minerals containing scandium were identified together with their dissemi-nated features. The results reveal that the useful minerals for scandium pre-
Based on the benefication of the complex silicate ore containing scandium, the research about aid-leaching agent used in the leaching of the scandium concentrate was been conducted. And the suitable leaching agent and aid-leaching agent which the useful ions entered into leaching liquid and the harmful ions were kept in leaching residue were …
for concentrating Sc in a specific phase and recovering Sc with high extraction efficiency. In this study, a two-stage innovative process was developed with an aim to extract scandium from a laterite ore. The first stage involves carbothermic reduction in which the iron is reduced at 1400–1600 °C and separated as a metallic phase,
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 …
Major scandium ore deposits have been found in the USA, Norway, Australia, China, Russia, Madagascar, Kazakhstan and Ukraine [8,11]. Any resources with scandium concentration between 20–50 mg/kg can be considered as ore for exploitation . In USA and Kazakhstan, scandium sources are mainly ores of aluminum uranium, …
Scandium: Ore deposits, the pivotal role of magmatic enrichment and future exploration. Zhenchao Wang, Martin Yan Hei Li, +1 author. Mei‐Fu Zhou. Published 2 …
Also, the ore has relatively higher Fe content as 8.01 % and in terms of impurities, Ca, Mg, and Si grades of the ore were determined as 4.44 %, 5.16 %, and 24.45%, respectively. Based on both mineralogical and chemical analysis, Eskişehir-Mihalıççık scandium ore was determined as a Sc-bearing clayey ore.
Based on the sample's composition, particle size distribution and the occurrence state of scandium, studies were conducted of the pre-concentration of …
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 ...
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 …
This involves passing an electric current through the ore, which pulls the scandium out of the ore and collects it in a slurry form. It is then further refined to produce the high-purity scandium metal. Another method used for purifying scandium is thermal reduction. In this process, the ore is heated until the scandium metal is released.
For the elements scandium through manganese ... This usually involves crushing or grinding the ore, concentrating the metal-bearing components, and sometimes treating these substances chemically to convert them into compounds that are easier to reduce to the metal. Smelting. The next step is the extraction of the metal in the molten …
A poor magnetite iron ore is a super large independent scandium deposit with over the multi-billion potential utilizable value. Shaking table separation is very useful for impurities removing and ...
Purification of scandium(III) from nickel ore. A treated sample of nickel ore from Jilin, China, was dissolved in 100 ml of aqueous HCl (pH, ~3) ...
Experimental Study on Concentrating Scandium by Leaching from Associated Scandium Ore. G. Zhang P. Yan Qingqing Yang. Materials Science, Engineering. 2013; Based on the benefication of the complex silicate ore containing scandium, the research about aid-leaching agent used in the leaching of the scandium concentrate was been conducted. …
In this study, a scandium concentrate with Sc2O3 content of 66.24 g/t was obtained from V-Ti magnetite tailings by physical concentration, and the main Sc-bearing minerals were augite and hornblende. A novel process of roasting and leaching was proposed to extract scandium from scandium concentrate with titanium dioxide …
Scandium is a soft and silver-white transition metal. Its distribution is highly dispersed distribution and it has no independent minerals [1, 2].So, it mainly occurs in other minerals in the form of isomorphism or ion adsorption, such as vanadium titano-magnetite, apatite, red mud etc. [3, 4].At present, the only independent ore mine is the Owendale …
The current study is based on the Crater Lake scandium deposit, which, to our knowledge, is the only deposit in a syenite complex with production potential and in which scandium is the principal ore metal. Hedenbergite is the main scandium mineral at Crater Lake, but subordinate proportions of scandium are also hosted by hastingsite.
As a result of this study, it is proposed that by a simple pH-controlled precipitation process, scandium can be separated from the nickel and cobalt containing process solutions as a …
After digesting the ore, scandium was aimed to be selectively precipitated, concentrated, separated from the main nickel-cobalt hydroxide processing circuit, and it was used as a secondary scandium source in a two-step pH-controlled solution purification process [7]. In the first step of the solution purification, maximum iron and some of the ...
Scandium is expected to be utilized in various fields, such as in aluminum -alloy additives, fuel-cell materials, and bulk acoustic wave devices [1, 2].However, global scandium production is low and scandium is produced as a byproduct during uranium, tungsten, and other rare-earth processing, because it is rare to find a rich deposit of …
In many scandium deposits, clinopyroxene is the main ore mineral, although in some deposits scandium is hosted by minerals that also concentrate the other REEs.
The scandium production rate and price data for scandium oxide and scandium metal was extracted from various sources. Data for extractable resources of scandium were found and evaluated by application of estimated yields. The feasible extractable resource is about 6.1 million ton, and with present technology, about …
WOOD S A, SAMSON I M. The aqueous geochemistry of gallium, germanium, indium and scandium [J]. Ore Geology Reviews, 2006, 28(1): 57–102. Article Google Scholar HE J, TANG M T, LIU Z Q, YANG S H, YAO W Y. Concentrating Ge in zinc hydrometallurgical process with hot acid leaching-halotrichite method [J].
At Bayan Obo and in other deposits, hydrothermal processes commonly have played an important role in concentrating the scandium to exploitable levels (Výravský et al., 2017;Smith et al., 2000 ...
Chemical analysis and determination of scandium phase on complex silicate ore with scandium were studied. The concentrate leaching help infusions were studied on the basis of scandium separation ...
This paper comprehensively reviews the metallurgical processes to recover scandium from various sources. Residues, tailings and waste liquors in the production of …
As at 31 December 2018, Proved and Probable Ore Reserves of scandium, reported in compliance with the JORC Code, were 12.14 kt (Table 1). Reserves accounted for 47% of Australia's Economic Demonstrated Resources (EDR) and have been reported from four projects – Nyngan, Owendale and Sunrise (Syerston) in New South Wales and …
According to the authors, scandium concentrate solution obtaining can be performed through three steps: first, iron removal by NH 4 OH; second, iron removal …
Scandium lacks affinity for the common ore-forming anions; therefore, it is widely dispersed in the lithosphere and forms solid solutions with low concentrations in more than 100 minerals. Scandium resources have been identified in Australia, Canada, China, Finland, Guinea, Kazakhstan, Madagascar, Norway, South Africa, the
The Burra project located in New South Wales, Australia, offers a long life, high-grade scandium oxide resource that has the potential to become a primary scandium operation in Australia. This project builds on our existing scandium production operation in Quebec and enhances our position to become a global leading supplier in the developing ...
Therefore, the pre-concentration of Sc is very important to form ore deposits. Magmatic and post-magmatic processes can effectively concentrate Sc in minerals such as clinopyroxene, amphibole, baddeleyite, thortveitite and Sc-rich phosphates, thereby …
Nonetheless, Sc can be occasionally concentrated to form magmatic, hydrothermal or supergene deposits. Magmatic deposits are estimated to contribute about 90% of the …
At Bayan Obo and in other deposits, hydrothermal processes commonly have played an important role in concentrating the scandium to exploitable levels (Výravský et al., 2017, Smith and Henderson, ... of a scandium ore fluid containing 1 m NaCl, 2000 ppm F and a scandium concentration established by pretulite saturation, with a rock …
In many scandium deposits, clinopyroxene is the main ore mineral, although in some deposits scandium is hosted by minerals that also concentrate the other REEs. As is the case for these other REEs, the main source of scandium is the mantle and the conveyors of scandium are alkaline igneous rocks (and carbonatites), including Alaskan …
Based on the benefication of the complex silicate ore containing scandium, the research about aid-leaching agent used in the leaching of the scandium concentrate was been conducted.