experimental study on extraction of scandium from complex scandium mining

A study involving P204 as an extractant and tributyl phosphate (TBP) as a modifier to recover scandium from HCl-leaching solutions of magnesium, aluminum, …

Density functional theory calculations further validated neutral exchange of Sc(III) in the neutral IL extraction process. This study presents a feasible solvent extraction system …

The experimental procedures for dissolution of scandium-rich I-Sc-concentrate and for crystallization of scandium sulfates from the leachate are shown in Fig. 1. A portion of I Sc concentrate was very carefully immersed into a solution of 9 M H 2 SO 4, then it was diluted with distilled water to solid/liquid (S/L) ratio 1/10 and kept at 80 ...

(2) The best scandium leaching results could be produced by using HCl and No.2 aid-leaching reagent together, the optimum experimental conditions were that particle size of ore was -0.05 mm ...

Table 3 summarizes the most recent studies and research on the scandium recovery from the RM. [162] An interesting study by Rout et al. [163] looked into how hollow fiber-supported liquid ...

Abstract and Figures. With the advancement of technology and a global shift towards clean energy, the need for rare earth metals is increasing. Scandium, a rare earth metal, has been extensively ...

Extraction Techniques: Navigating the Complexities. Extracting scandium from its natural sources is a complex process due to its low abundance and the need for precision in separating it from other elements. Over the years, various extraction techniques have been developed, each with its advantages and challenges. 1. Hydrometallurgical Processes:

Research article. First published online June 1, 2022. A systematic study on extraction and separation of scandium using phosphinic acid by both solvent …

The present study aimed at the scandium extraction from bauxite residue by H2SO4 and H3PO4 leaching. The use of H2O2 was evaluated to avoid silica gel formation. The effect of time, temperature ...

The Nyngan scandium resource is located approximately 500 kilometers northwest of Sydney, Australia. The property consists of two exploration licenses (part of EL 6009 and all of EL 6096). The property encompasses 2,925 hectares and is accessible via a 25 km sealed road from the local town of Nyngan. The scandium resource is hosted within the ...

scandium is closely related to the Sc leaching rate. There-fore, strict control of leaching conditions is the key to the experimental process. In order to improve the leaching e-ciency, some leaching additives can be added appropriately [6–8]. The recovery of high-purity scandium products can be achieved by extraction, ion exchange, and so on ...

This review demonstrates many outstanding research achievements have been reported in recent years that solvent extraction technology occupies a dominant …

The present study aims to recover scandium and zirconium from leach solution of bauxite residue by solvent extraction. Scandium is widely applied mainly in solid oxide fuel cells (SOFCs), but also ...

The main findings of the scandium separation mechanism show that Sc-bearing minerals can effectively decompose and release scandium element after …

The Company intends to maintain existing exploration licenses and pursue improved understanding of the resource potential for the property as part of the required work programs under EL 7977. Scandium International Mining Corp. (SCY) owns a interest in the Nyngan Scandium Project and in the Honeybugle Scandium property in …

Based on leaching experiments of complex silicate ore contenting scandium, the research has adopted extraction to concentrate scandium and separate impurity. The emphasis of this reaserch is the impact factors, so the experiments including extractant concentration, organic aqueous ratio, mixing time, organic phase washing, organic phase …

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. …

Scandium has been found in nickel laterite ore, with its content generally higher in the limonite than saprolite. In this study, scandium extraction from Halmahera limonite ore by high pressure acid leaching (HPAL) in sulfuric acid solution is discussed. The experimental design was performed by using the Taguchi orthogonal array L9 (3 4) …

The recovery of scandium (Sc) from wastes and various resources using solvent extraction (SX) was discussed in detail. Moreover, the metallurgical extractive procedures for Sc recovery were presented. Acidic and neutral organophosphorus (OPCs) extractants are the most extensively used in industrial activities, considering that they …

It is possible to extract and enrich scandium from red mud by leaching and solvent extraction . Scandium can then be recovered from the pregnant strip liquor by crystallization. The strip liquor will however still contain certain impurity elements. In the present work, a method for obtaining a pure scandium solid phase by direct …

Scandium (Sc) is the lightest of REE. It has atomic number 21, thus being the neighbor of calcium (Ca). Unlike calcium, which is the fifth most abundant element in the Earth's crust, Scandium is scarce, but still more abundant than lead, tin, silver etc. Scandium has the electron configuration [Ar]3s 2 3d 1.This immediately indicates that …

For scandium extraction from C272, a recovery r ate between 90% and 99% was achieved when 300–400 g/L sulfuric acid was used, while the correspondin g from P204 and Ionquest 801 wa s more difficult.

The goal of the present study was the extraction of scandium by solvent extraction. The synthetic solution was obtained after the acid leaching of bauxite residue, as previously reported [10] .

The general extraction method of scandium in red mud is. as follows: sodium bicarbonate leaching, reduction smelt-. ing-acid leaching, alkali fusion-acid leaching, acid leaching, .and so on ...

The new efficient extraction technologies promise an ensured supply of scandium and a significant drop in cost. Here, scandium concentrate, extracted from leachate after carbonate treatment of red ...

The Nyngan scandium resource is located in NSW, Australia approximately 500 kilometers northwest of Sydney. Minerals exploration at the site has defined a measured and indicated resource significantly larger (7X) than the currently planned 20 year mine life outlined in the feasibility study. Mine Plan Design. The resource is amenable to surface ...

The present study aims to recover scandium and zirconium from leach solution of bauxite residue by solvent extraction. Scandium is widely applied mainly in solid oxide fuel cells (SOFCs), but also ...

Test results show scandium leaching recovery of 95.12% and the acid leaching residue with Sc2O3 content of 8.12 g/t are obtained, while the extraction of scandium is obvious.

Studies indicate that iron extraction in acidic medium can reach 50% depending on leaching conditions, but the best results for scandium extraction typically report at least 5% iron extraction . In general, the concentration of iron in the liquor can reach 300 ppm, while the REE content reaches 9 ppm [ 31 ].

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 byproduct ...

The experimental result and statistical analysis revealed that the optimum condition for scandium extraction was at 1.5 M H2SO4, a leaching duration of 1 h, a temperature of 200 °C, and a slurry ...