extracting scandium study

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Experimental Study on Concentrating Scandium by Leaching ...

the resin beads. The kinetic adsorption of scandium by the resin is slow, and contact time 24 hours was chosen as a suitable time in this study. Scandium loaded on the resin can be eluted completely by 2 M HCl eluent at temperature 80 oC. Acknowledgements A part of this study was supported by the High Efficiency Rare Elements Extraction Technology

Experimental Study on Extraction of Scandium from Complex ...

The current study puts the emphasis on developing a pyro-hydrometallurgical process, called acid baking–water leaching, to recover scandium and neodymium from blast furnace slag produced by the ironmaking industry. In this process, the feed is mixed with concentrated sulfuric acid, digested at 200–400 °C, and leach

(PDF) Extraction of scandium from scandium-rich material ...

Scandium is separated from the other rare earths by precipitation of the insoluble potassium scandium sulfate or by extraction of scandium thiocyanate by diethyl ether.The metal itself was first prepared in 1938 by the electrolysis of potassium, lithium, and scandium chlorides in a eutectic mixture (i.e., a mixture having the lowest melting point possible with those components).

Recovery of Scandium from Chloride Media Using the Novel ...

Sep 01, 2020· The extraction of Sc by acid leaching with CaF 2 and solvent extraction with P507 from red mud was proposed. The influence of acid leaching and solvent extraction on recovery of Sc was investigated. The CaF 2 can obviously improve the leaching efficiency of Sc and reduce the acid consumption. The leaching efficiency of Sc increases from 74% to 92% and the dosage of acid …

HYDROMETALLURGICAL EXTRACTION OF SCANDIUM FROM …

Red mud, an extremely alkaline by-product formed during aluminum extraction from bauxite, is a serious environmental concern. One disaster that particularly stands out is the Ajka alumina plant accident in West Hungary: In 2010, the dam of one of the red mud reservoirs collapsed, leading to loss of life in the entire Marcal river. The toxic waste eventually reached the Danube,

Separation and Extraction of Scandium and Titanium from a ...

Extraction of scandium from red mud by modified activated carbon and kinetics study. Author links open overlay ... was modified by tri-butyl phosphate (TBP) for selectively extracting scandium from red mud and characterized by BET (Brunauer-Emmett-Teller) surface area. ... and time on adsorption capacity and selectivity to scandium were ...

Extraction of scandium from red mud by modified activated ...

Mar 11, 2018· At the present time, the extraction of scandium from titanium, tungsten, uranium residues, red mud and phosphogypsum by IX have been made. The objective of this study is determining the extraction possibility of scandium from the leach solution of lateritic nickel-cobalt ore by ion exchange chromatography using various resins.

(PDF) Recovery of scandium from magnesium, aluminium and ...

Leaching scandium from scandium concentrate by adding hydrochloric acid and leaching aid agent [J]. hydrometallurgy of china, 2005, 24(3): . [6] Zhu Minjie, Shen Chunying, Qiu Li. The present situation of research on rare element sc[J].

USB2 - Scandium extraction method - Google Patents

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 ...

Recovery of Scandium from Chloride Media Using the Novel ...

Experimental Study on Extraction of Scandium from Complex Silicate Ore p.1037. Experimental Study on the Cyanidation of a Low-Grade Gold with High Content of Arsenic in Myanmar p.1041. Flotation Behavior of Smelting Abandoned Copper Slags p.1045. Influence of Collectors on Flotation of Fine Tin Middlings after Gravity Separation ...

CNA - Method for extracting scandium from nickel ...

hydrometallurgical extraction route of lateritic (oxide) nickel-cobalt ores. In a previous work, the high pressure sulphuric acid leaching behaviour of a typical lateritic ore containing 106 g/t scandium was studied and it was found that 80.6% of scandium within the …

Extraction of scandium from scandium-rich material derived ...

Experimental Study on Extracting Scandium from HCl Leachate of Chloride Dust. Article Preview. Abstract: Solvent extraction experiment of Sc was investigated.The extraction system consisted of 25% TBP+60% sulfonated kerosene +15% reforming agents. The results show that the extraction rates of Sc can reach up to 95%.The removing of Fe,Mn and ...

SOLVENT EXTRACTION OF SCANDIUM WITH MIXED …

Another study which aimed to recover scandium from scraps of magnesium, aluminium and iron showed that complete Sc recovery can be reached from the leach solutions with almost 10% co-extraction of ...

experimental study on extraction of scandium from complex ...

Provided is a method for selectively extracting and inexpensively recovering scandium from an acidic solution containing calcium, magnesium, and scandium. The scandium extraction method according to the present invention involves subjecting an acidic solution containing calcium, magnesium, and scandium to solvent extraction using an extraction agent consisting of an amide derivative ...

Recovery of Scandium by Crystallization Techniques ...

Sep 10, 2020· ABOUT SCANDIUM INTERNATIONAL MINING CORP. The Company is focused on developing its Nyngan Scandium Project, located in NSW, Australia, into the world's first scandium-only producing mine. The Company filed a NI 43-101 technical report in May 2016, titled "Feasibility Study – Nyngan Scandium Project". The project has received all key ...

USB2 - Solvent extraction of scandium from leach ...

Supercritical Fluid Extraction of Rare Earth Elements from . Nov 24 2017This study put emphasis on developing an innovative and sustainable process for the urban mining of rare earth elements from waste electrical and electronic equipment in particular a nickel metal hydride battery The developed process relies on supercritical fluid extraction utilizing CO 2 as the solvent which is inert safe ...

experimental study on extraction of scandium from complex ...

The extraction mechanism was examined and it was revealed that Sc3+ is extracted with three HTTA and one TOPO molecules. Scandium was readily stripped from the extracting phase by 1 M sulfuric acid. The potential use of the combination of the β-diketone with TOPO for the recovery of Sc3+ in a refining process was demonstrated.

Extraction of scandium from red mud by acid leaching with ...

Mar 01, 2018· This study aims to selectively extract scandium from the scandium-rich material via phosphoric acid leaching and solvent extraction process. 2. Material. As described in our previous studies (Li et al., 2014, Deng et al., 2017), the scandium-rich material was a leaching residue originated from bauxite ore residue.

(PDF) Concentration and Separation of Scandium from Ni ...

"Solvent Extraction of Scandium from Leach Solutions", granted in May 2018 to SCY. This patent covers and protects novel and scandium-specific solvent extraction techniques, chemistries, and reagents employed in the Nyngan feasibility study. USP (# Not Yet Assigned). "Method and Recovery of Scandium Values from Leach Solutions". Granted ...

Separation and purification of scandium by solvent ...

In this study, the crystallization of scandium from ammonium fluoride strip liquor, obtained by solvent extraction, was investigated using an anti-solvent crystallization technique.