- منطقة بودونغ الجديدة ، شنغهاي ، الصين .
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Scandium is currently in high demand because of a number of technological advances in the aerospace and automotive sectors of the global economy. In this paper, we review the properties of scandium, the geology of the major economic and potentially economic scandium deposits, and the processes that may concentrate scandium to exploitable …
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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 …
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In the context of the characterization studies, performed elemental analysis indicated that the ore was relatively enriched in scandium content as 105 ppm by mainly concentrating in the clay minerals such as montmorillonite and nontronite.
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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 …
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nated features. The results reveal that the useful minerals for scandium pre-concentration are pyroxene, tremolite, hornblende and clay. 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.
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Scandium concentrate and titanium dioxide wastewater (TDWW) all belong to waste, especially TDWW belongs to hazardous waste, it is urgent to find a more efficient and safer treatment method to deal with them, and both waste acid and waste ore contain scandium. The use of waste acid as a leaching agent can achieve the synergistic …
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The recovery of scandium (Sc) from wastes and various resources using solvent extraction (SX) was discussed in detail. ... phosphoric acid is the most used extractant for concentrating scandium and separating it from other metals. ..., a wolframite ore comprising 0.04% scandium, 69.3% tungsten, 11.6% iron, and 4.8% …
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Lastly, modeling using the data obtained in this study reliably predict the concentration of scandium likely to be present in scandium ore fluids and show that fluid/rock interaction, at realistic fluid/rock, ratios, is an effective means of producing an economic scandium deposit.
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Metallurgical processes for scandium recovery from various resources are reviewed. Scandium is mainly recovered as by-product from residues, tailings and waste liquors in the production of other metals such as rare earths, uranium, titanium, tungsten, aluminium, nickel, tantalum and niobium.
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Keywords Carbothermic reduction NaOH cracking Scandium Laterite ore Ferronickel Smelting Cobalt Introduction Laterite ore is an important deposit as it contains appreciable amounts of nickel and ... for concentrating Sc in a specific phase and recovering Sc with high extraction efficiency. In this study, a two-stage innovative process was ...
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Scandium was classified as a critical metal owing to its steep increase in demand . An economically profitable option is to recover scandium from waste streams of scandium-associated ore processing units. Scandium is found in a large extent in aluminum ores. Bauxite is the most common aluminum ore, which has a high content of …
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Continuing to increase the ratio of hydrochloric acid-roasted ore, scandium and rare earth became more concentrated in hydrochloric acid solution. As the ratio of hydrochloric acid-roasted ore increased to 10:1, the leaching rates of scandium, rare earth and niobium in hydrochloric acid reached to 97.46%, 97.18% and 40.41%, respectively.
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The distribution in nature,application,and extraction technology of scandium are introduced.Scandium is very rare in nature,there is not its independent mineral,it is usually symbiosis with other minerals,but scandium has very important and wide use.At present,most scandium was extracted from the waste solution of sulphate process for …
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