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Liquid extraction procedure for the recovery of scandium ...

06-02-1990· The U.S. Department of Energy's Office of Scientific and Technical Information

Ion exchange purification of scandium (Patent) | DOE Patents

23-10-1990· This eliminates the HEDTA ion and other monovalent cations contaminating the scandium band. This method maximizes recovery of scandium while maintaining purity. 2 figs.}, doi = {}, journal = {}, number =, volume =, place = {United States}, year = {Tue Oct 23 00:00:00 EDT 1990}, month = {Tue Oct 23 00:00:00 EDT 1990}}

US Patent Application for METHOD FOR RECOVERING SCANDIUM ...

The present invention effectively recover high-grade scandium from nickel oxide ores. The present invention includes a leaching step (S1) for charging nickel oxide ores and sulfuric acid into a pressurized vessel, a neutralizing step (S2) for adding a neutralizing agent to the leachate to obtain a neutralized precipitate and a neutralized liquid, a sulfidizing step (S3) for adding a ...

US9963762B2 - Scandium recovery method - Google Patents

In order to recover high-quality scandium from nickel oxide ores efficiently, this method comprises: a step (S 1 ) for feeding Ni oxide ores and sulfuric acid into a pressure vessel, and subjecting the mixture to solid-liquid separation to form a leachate and a leach residue; a step (S 2 ) for adding a neutralizing agent to the leachate, and thus forming a neutralization sediment and a post ...

US4968504A - Recovery of scandium and uranium - Google Patents

US4968504A US07/424,027 US42402789A US4968504A US 4968504 A US4968504 A US 4968504A US 42402789 A US42402789 A US 42402789A US 4968504 A US4968504 A US 4968504A Authority US United States Prior art keywords uranium scandium acid resin aqueous solution Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Towards the first recovery of scandium from waste acid ...

ERES2020: 3rd European Rare Earth Resources Conference |Delphi| Oct 2020 1 Towards the first recovery of scandium from waste acid: pilot-scale nanofiltration Sebastian HEDWIG1, Kirsten REMMEN1, Edwin C. CONSTABLE2, Markus LENZ1 1 Institute for Ecopreneurship, FHNW, Hofackerstr. 30, CH-4132 Muttenz, Switzerland 2 Department of Chemistry, University of Basel, Mattenstr. 24a, …

US4968504A - Recovery of scandium and uranium - Google Patents

The scandium and uranium are recovered as solids. US4968504A - Recovery of scandium and uranium - Google Patents Recovery of scandium and uranium Download PDF Info Publication number US4968504A. US4968504A US07/424,027 US42402789A US4968504A US 4968504 A US4968504 A US 4968504A US 42402789 A US42402789 A US 42402789A US 4968504 A US4968504 A ...

US Patent for Recovery of scandium, yttrium and ...

This is a process for extracting scandium from zircon ore. It utilizes feeding zircon sand to a fluidized bed chlorinator at about 1000.degree. C. to produce a vaporous (principally zirconium and silicon chlorides) phase and a solid residue and recovering scandium from the solid residue. Surprisingly, despite the relatively low sublimation temperature of scandium chloride the very low level of ...

US20180023168A1 - Method for recovering scandium - Google ...

Provided is a method for recovering scandium with which scandium can be efficiently recovered as high purity scandium oxide from a scandium-containing solution containing impurities such as iron without causing problems such as increased cost and safety problems. According to the method for recovering scandium according to the present invention, the pH of a solution containing scandium …

RECOVERY OF SCANDIUM FROM TITANIUM TAILINGS …

ERES2020: 3rd European Rare Earth Resources Conference |Delfi| Oct 2020 1 RECOVERY OF SCANDIUM FROM TITANIUM TAILINGS SOLUTION USING II-VI SIR TECHNOLOGY Gomer ABRENICA1, Ghazaleh NAZARI1, Wen-Qing XU2, Shailesh PATKAR2, Martin BENZING3 1 II-VI Incorporated, Cavite, Philippines 2 II-VI Incorporated, Pennsylvania, United States 3 II-VI …

US9963762B2 - Scandium recovery method - Google Patents

US9963762B2 US15/115,030 US201515115030A US9963762B2 US 9963762 B2 US9963762 B2 US 9963762B2 US 201515115030 A US201515115030 A US 201515115030A US 9963762 B2 US9963762 B2 US 9963762B2 Authority US United States Prior art keywords scandium post extraction organic solvent mol Prior art date Legal status (The legal status is an assumption and is not a …

US Patent for Recovery of scandium and uranium Patent ...

Justia Patents Organic Synthetic Resin US Patent for Recovery of scandium and uranium Patent (Patent # 4,968,504) Recovery of scandium and uranium Oct 19, 1989 - GTE Laboratories Incorporated

Recovery of scandium and uranium (Patent) | OSTI.GOV

06-11-1990· The U.S. Department of Energy's Office of Scientific and Technical Information

RECOVERY OF SCANDIUM FROM TITANIUM TAILINGS SOLUTION …

ERES2020: 3rd European Rare Earth Resources Conference |Delfi| Oct 2020 1 RECOVERY OF SCANDIUM FROM TITANIUM TAILINGS SOLUTION USING II-VI SIR TECHNOLOGY Gomer ABRENICA1, Ghazaleh NAZARI1, Wen-Qing XU2, Shailesh PATKAR2, Martin BENZING3 1 II-VI Incorporated, Cavite, Philippines 2 II-VI Incorporated, Pennsylvania, United States 3 II-VI …

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

In the field of valuable metals recovery, most work only focused on the recovery of individual element, such as iron [19][20][21], aluminum [22,23], and scandium [24, 25].