Solvent extraction of scandium from lateritic nickel- cobalt ores using different organic reagents

Download

index.pdf

Date

2016-09-28

Author

Ferizoglu, Ece
Kaya, Serap
Topkaya, Yavuz Ali

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

334
views

82
downloads

Scandium is the most important and strategic metal that can be recovered as a by-product from lateritic nickel-cobalt ores. In this research, different extractants were investigated in order to extract scandium from a sulfate medium by a using a solvent extraction method. Generally, the organic extractants are classified as acidic, neutral and basic organophosphorus compounds. However, in solvent extraction of scandium, the acidic and neutral organophosphorus compounds are preferred due to their higher extraction efficiencies. Thus, the aim of the present study was to compare the scandium extraction efficiencies of some acidic and neutral organic reagents. For this reason, Ionquest 290 (Bis(2,4,4-trimethylpenthyl) phosphonic acid), DEHPA (Di(2-ethylhexyl) phosphoric acid), Cyanex 272 ((Bis(2,4,4-trimethylpentyl) phosphinic acid) which are acidic organophosphorus compounds, and Cyanex 923 (Trialkylphosphine oxide), which is a neutral organophosphorus compound, were used. The extraction capacities of these organics were studied with respect to the extractant concentration at same pH and phase ratio. As a result of the study, DEHPA was found to have higher scandium extraction efficiency with lower iron extraction at pH = 0.55 at a phase ratio of 10:1 = A:O.

Subject Keywords

Mineralogy, Mining & Mineral Processing

URI

https://hdl.handle.net/11511/48098

DOI

https://doi.org/10.1051/e3sconf/20160801043

Collections

Test and Measurement Center In advanced Technologies (MERKEZ LABORATUVARI), Conference / Seminar

Suggestions

OpenMETU
Core

Solvent extraction behaviour of scandium from lateritic nickel-cobalt ores using different organic reagents Ferizoglu, Ece; Kaya, Serap; Topkaya, Yavuz Ali (2018-04-01) Scandium is one of the most important and strategic metals that can be recovered as a by-product from lateritic nickel-cobalt ores. In this research, different extractants were investigated to extract scandium from sulphate medium by using solvent extraction method. Generally, the organic extractants are classified as acidic, neutral and basic reagents. Thus, the aim of the present study was to compare scandium extraction efficiencies of some acidic, neutral and basic organic reagents. For this reason, Ionq...
Challenges related to flotation cleaning of oil shales Issues due to compositional and surface features and post grinding surface behavior Altun, Naci Emre (2016-09-30) Oil shale is an important energy resource alternative. Despite its recognition as an unconventional oil source, oil shale is also considered as an important solid fossil fuel alternative to coal and lignites due to the solid form and remarkable extent of organic content. Utilization possibilites, similar to coal and lignites, have been considered in the past decades and direct use of oil shales in thermal power production has been possible in countries like Estonia and China. In the perspective of utilizati...
3-dimensional measurements of morphological properties of particles Hicyilmaz, C; Bilgen, S (1996-09-26) Morphological properties of particles are important in mineral processing. Flotation recoveries are affected by surface roughness and acuteness of particles. A novel technique was developed to measure the morphological properties of particles 3- dimensionally. Pyrite sample ground in autogeneous and ball mill to differentiate the surface properties was used in this study.
Production of heavy-media-quality magnetite concentrate from Kesikköprü iron ore tailings Güngör, Kazım; Atalay, M Ümit; Department of Mining Engineering (2010) The aim of this research was to investigate the possibility of the production of a magnetite concentrate which is suitable for preparation of heavy media from iron ore tailings of Güncem Mining Company magnetic separation facility. During the study, three different tailings named as low grade, medium grade and high grade with 5.91 % Fe3O4, 19.06 % Fe3O4 and 37.06 % Fe3O4, respectively, were used. Mineralogical analyses of test samples showed that magnetite and hematite were the major ore minerals while pyri...
Metal Oxides Supported Cobalt nanoparticles: Active Electrocatalysts for Oxygen Evolution Reaction Önal, Ahmet Muhtar; Akbayrak, Merve (2021-08-01) Besides precious metal oxides, non-noble metal oxides are found to be promising materials especially, in the alkaline medium for OER. In this work, Co/MO 2 (M = Ti, Zr, and Ce) catalysts were synthesized with- out using any harsh steps such as pyrolization, annealing, calcination, and carbonization. Cobalt nanopar- ticles with ∼2.6 nm particle size were loaded on metal oxides by simple impregnation and reduction method. Considering the low onset and overpotential values, low Tafel slopes, high exchange curr...

Citation Formats

E. Ferizoglu, S. Kaya, and Y. A. Topkaya, “Solvent extraction of scandium from lateritic nickel- cobalt ores using different organic reagents,” 2016, vol. 8, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48098.