Technospheric Mining of Rare Earth Elements from Bauxite
Among different REEs present in red mud, scandium is the most strategic one because of the game-changing properties it offers to the modern society. With an average crustal abundance of around 22 ...
New insights on scandium separation from scandium
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 …
RETRANSMISSION: Doubleview Achieves 89% Scandium …
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Doubleview Achieves 89% Scandium Extraction from …
Vancouver, British Columbia--(Newsfile Corp. - October 24, 2022) - Doubleview Gold Corp. (TSXV: DBG) (OTCQB: DBLVF) (FSE: 1D4) ("Doubleview") is pleased to announce that the Company's ongoing ...
Simulation of Simultaneous Leaching of Copper and Cobalt …
Process optimization resulted in copper and cobalt recoveries of 99.77% and 97.92%, respectively under the following conditions: the sulfuric acid mass flow rate of 23.72 kg/h, SMBS mass flow rate of 6.49 kg/h, temperature of 65.25 °C, and leaching time of 4.39 h. ... Kapiamba KF (2021) Statistical investigation of flotation parameters for ...
The extraction of vanadium from titanomagnetites and other sources
1. Introduction1.1. Vanadium properties and applications. Vanadium is primarily used as an additive to steel in the form of ferrovanadium (Moskalyk and Alfantazi, 2003).Around 85% of the vanadium produced globally is used for this purpose (Swinbourne et al., 2016).Only minor amounts of vanadium are needed for this purpose, with …
Selective sulfidation of metal compounds | Nature
This is supported herein by kinetic control of sulfidation selectivity between iron and rare-earth oxides (iron (III) oxide (Fe 2 O 3) and lanthanide (III) oxide (Ln 2 O 3 ), melting points 1,597 ...
Studying the extraction of scandium(III) by macrocyclic
The obtained optimization results showed that at the following optimum conditions: 0.006 mol/L concentration of K 2.2.2 and DC18C6, 11 min contact time, pH 4 of the aqueous solution and 75 mg/L initial Sc concentration resulted in an optimum extraction efficiency of 99.7% and 15.2%, respectively. ... Studying the extraction of scandium(III) …
Scandium Recovery Methods from Mining, Metallurgical …
Scandium recovery from red mud should be considered, because of its rarity and increasing market demand, as a primary goal rather than a secondary by-product in the design process of the entire flow-chart. ... (III) by macrocyclic compounds from aqueous solution using optimization technique. Int. J. Environ. Sci. Technol. 2022:1–18. …
RETRANSMISSION: Doubleview Achieves 89% Scandium …
Initial scandium recovery rates of 89% from flotation tailings with the anticipation of higher recoveries with optimization is extremely encouraging. Scandium …
Optimization Extraction of Scandium from Scandium …
Scandium concentrate can be obtained by gravity separation, magnetic separation, flotation, and other methods; therefore, it is very important to select the appropriate beneficiation method for the subsequent extraction of scandium.
Optimization Extraction of Scandium from …
Optimization Extraction of Scandium from Scandium Concentrate with Titanium Dioxide Wastewater by Response Surface Methodology. Junhui Xiao1,2,3,4,5,6 · Nanlan Zhong1 …
Efficient Selective Extraction of Scandium from Red …
The results show that the maximum Sc leaching efficiency of 91.98% was obtained at optimum conditions: the roasted at 1023 K for 60 min, the ratio of sulfuric acid …
Optimization of Flotation Recovery with Integrated
Optimization of Flotation Recovery with Integrated Quadratic Control. October 2023. DOI: 10.1007/978-3-031-38141-6_77. In book: Proceedings of the 62nd Conference of Metallurgists, COM 2023 (pp ...
Doubleview Gold Achieves 89% Scandium
Initial scandium recovery rates of 89% from flotation tailings with the anticipation of higher recoveries with optimization is extremely encouraging. Scandium …
Interaction of dislocation/compensated precipitates and …
As covered above, the optimization of mechanical property mainly derived from the precipitated Al 3 Sc. Since the firstly precipitated Al 3 Sc provided numerous nucleation particles for α-Al precipitation in view of the coherent interface between Al 3 Sc and α-Al, the α-Al grains were discernibly refined. The grain refinement corresponded to ...
RETRANSMISSION: Doubleview Achieves 89% Scandium …
Supplementary copper flotation test work showed that 99.5% of the scandium associated with the gangue minerals reported to the flotation tailings. The scandium grade of the tailings from the ...
Optimization of Operational Conditions for Scandium
A method for the determination of scandium (Sc) in aluminum alloy samples by inductively coupled plasma optical emission spectrometry was developed. The method was optimized by the Box–Behnken design, which evaluated the operational conditions (radio frequency power, nebulizer gas flow rate, and sample flow rate). The optimum …
Efficient Selective Extraction of Scandium from Red Mud
The scandium can be recovered from red mud by direct acid leaching but the extraction yields are generally low, and the leaching efficiency of iron and silicon is higher. Therefore, the highly selective process steps (a combined sulfation-roasting-water leaching process) were studied to extract scandium from red mud, and in order to minimize ...
Scandium for Aerospace Applications | Scandium
4. Fuel Efficiency Optimization: Scandium Compounds and Catalysts: Scandium compounds and catalysts are employed to optimize fuel combustion processes in aircraft engines. By enhancing fuel efficiency, these materials directly contribute to reduced operational costs for airlines and a decreased environmental footprint associated with air …
Doubleview Achieves 89% Scandium Extraction from …
Vancouver, British Columbia--(Newsfile Corp. - October 24, 2022) - Doubleview Gold Corp. (TSXV: DBG) (OTCQB: DBLVF) (FSE: 1D4) ("Doubleview") is pleased to announce that the Company's ongoing testwork program investigating the potential for scandium extraction and recovery has resulted in a significant …
Froth flotation of lithium micas – A review
Flotation tests were carried out with impeller speed of 1400 rpm and an air flow rate set at 480 L.h −1. Collector dosage varied between 150 and 500 g/t. ... Grade-recovery modelling and optimization of the froth flotation process of a lepidolite ore. International Journal of Mineral Processing, 157 (2016), pp. 184-194, …
RETRANSMISSION: Doubleview Achieves 89% Scandium …
Vancouver, British Columbia--(Newsfile Corp. - October 25, 2022) - Doubleview Gold Corp. (TSXV: DBG) (OTCQB: DBLVF) (FSE: 1D4) ("Doubleview") is pleased to announce that the Company's ongoing ...
Efficient utilization of red mud waste via stepwise leaching
Figure 6 shows the optimization of the L/S ratio for leaching the Al and Fe cations in HCl (3.0 M). By increasing the L/S ratio up to 20 mL per gram of solid, the leaching efficiency of iron and ...
Optimization Extraction of Scandium from Scandium …
DOI: 10.1007/s40831-024-00794-6 Corpus ID: 267965187; Optimization Extraction of Scandium from Scandium Concentrate with Titanium Dioxide Wastewater by Response Surface Methodology
SELECTION OF MECHANICAL FLOTATION EQUIPMENT
Mechanical flotation cells can be broken down into two broad categories based on how air is introduced to the cell. In a self aspirated flotation cell air is introduced to the slurry, …
Best Practices for Flotation Control and Optimization
A good flotation optimization method should consider the following aspects: the data collection and analysis methods, the mathematical models and algorithms, the optimization criteria and ...
Interaction of dislocation/compensated precipitates and …
1. Introduction. Aluminum-lithium alloy (Al–Li alloy) is a light metal due to Li addition, showing the characteristic of lower density and higher elastic modulus than the ordinary aluminum alloy [[1], [2], [3]].A 1% increase in Li content corresponds to a 3% decrease in density, and a 6% increase in elastic modulus for Al–Li alloy.
Doubleview Achieves 89% Scandium Extraction …
Preliminary metallurgical extraction tests on flotation tailings in sulphate media at elevated temperatures demonstrated that 89% of the scandium in the flotation tailings could be extracted into solution. …
Separation and purification of scandium by solvent …
Scandium(III) extractions are interfered with by commonly associated elements such as iron(III), zirconium(IV), titanium(IV), thorium(IV), yttrium(III) and lanthanides(III). The advantages and disadvantages of applications of ion exchange and liquid membrane technologies for scandium recovery are reviewed and compared with …
