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Semantic Scholar extracted view of "Extraction of Titanium dioxide from Red Mud" by D. Swarup et al. Skip to search form Skip to main content Skip to account menu. Semantic …
The sulfuric acid leaching method is an essential process for producing titanium dioxide from ilmenite due to the low requirements for feed grade [].In China, more than 90% of titanium dioxide is yielded by the sulfuric acid leaching method, and the production of 1 ton of titanium dioxide engenders about 8 tons of acidic wastewater [2, …
DOI: 10.1016/J.JECE.2021.106226 Corpus ID: 238668639; Highly efficient recovery and purification of scandium from the waste sulfuric acid solution from titanium dioxide production by solvent extraction
Since the pre-reduced sample was smelted at 1600℃ for 60 min, 93.60 wt% of the iron element in red mud can be recycled in the form of iron nugget with grade of 99.6 wt%. …
DOI: 10.1016/J.HYDROMET.2021.105724 Corpus ID: 238689020; Recovery of scandium from red mud by leaching with titanium white waste acid and solvent extraction with P204 @article{Zhou2021RecoveryOS, title={Recovery of scandium from red mud by leaching with titanium white waste acid and solvent extraction with P204}, author={Jie Zhou and …
The extraction of scandium from an Australian red mud by selective acid leaching was explored and preliminary leaching tests showed that diluted sulphuric acid can be used to leach scandium from ...
Semantic Scholar extracted view of "Solvent extraction of titanium(IV) from sulfuric acid solution with Cyanex923 and its application in leach liquor of red mud" by Dan Zou et al. ... A two-stage extraction process was proposed to recover sulfuric acid and vanadium from simulated acid solution and titanium dioxide waste acid (TDWA).
The huge reserves of red mud have a significant potential source of scandium. The scandium can be recovered from red mud by direct acid leaching but the extraction yields are generally low, and ...
DOI: 10.1016/j.jre.2023.12.010 Corpus ID: 266396203; Solvent extraction of scandium from leaching solution of red mud roasted with ammonium sulfate using D2EHPA/TBP☆ @article{Li2023SolventEO, title={Solvent extraction of scandium from leaching solution of red mud roasted with ammonium sulfate using D2EHPA/TBP☆}, author={Fucheng Li …
Sulfuric acid is the most applicable acid for hydrometallurgical extraction of titanium dioxide from red mud because titanium dioxide can react with sulfuric acid to produce soluble TiOSO 4 (Zou ...
Gallium and vanadium extraction from red mud of Turkish alumina refinery plant: hydrogarnet process. Hydrometallurgy, 157 (2015), pp. 72-77. View PDF View article View in Scopus Google Scholar. ... Enrichment of titanium dioxide in red mud: a kinetic study. Hydrometallurgy, 53 (1999), pp. 73-87.
A process is described for the enrichment of titanium dioxide in red mud. The procedure employed is leaching the red mud with hydrochloric acid followed by roasting the leached residue with sodium carbonate. The kinetics of leaching of various constituents of red mud were obtained experimentally in a stirred batch reactor.The …
The waste sulfuric acid solution generated from titanium dioxide production is called titanium dioxide waste acid (TWWA), which is an important resource for scandium production. A way including enrichment and purification stages for recovery and purification of Sc from TWWA with 10% P204 - 5% TBP synergistic extraction system …
Abstract Red mud is the major waste material produced during alumina production following the Bayers process. Depending on the quality of the raw material processed, 1–2.5 tons of red mud is…
Download Citation | On Aug 26, 2014, D. Swarup and others published Extraction of Titanium dioxide from Red Mud | Find, read and cite all the research you need on ResearchGate
The loss of scandium and titanium were 6.3% and 5.9%, respectively. Compared with the traditional extraction procedure of scandium in red mud, this …
Since the pre-reduced sample was smelted at 1600℃ for 60 min, 93.60 wt% of the iron element in red mud can be recycled in the form of iron nugget with grade of 99.6 wt%. Titanium in red mud can be recycled as Ti-rich slag, with TiO 2 content of 55.91 wt%, for titanium dioxide production. The FeO in slag also suppressed the side reactions (i.e ...
Semantic Scholar extracted view of "Optimization Extraction of Scandium from Scandium Concentrate with Titanium Dioxide Wastewater by Response Surface Methodology" by Junhui Xiao et al. ... we investigated a nickel laterite ore with Ni content of 1.56 wt% and a red mud with Fe content of 20.98 wt%, the main Ni-bearing mineral in …
In 2010, a basin in Hungary filled with red mud collapsed, causing 10 deaths and costing nearly £100 million to clean up. The exact composition of red mud varies but it always contains plenty of iron oxide – with the iron being the source of the red colour. Iron manufacture is currently fuelled by coal, making the process a significant ...
A typical red mud usually contains titanium in a range of 1–5 wt%. The red mud sample used in this study contained 3.18 wt% Ti. The other major components were Ca, Si, and Al. In the leaching experiments, besides Ti and REEs, dissolution of Al and …
Download Citation | On Aug 26, 2014, D. Swarup and others published Extraction of Titanium dioxide from Red Mud | Find, read and cite all the research you need on …
The differences of the extraction capacity of metal ions are revealed in detail. Finally, the extraction mechanism of all metal ions extracted by specific extractant are proposed. The methodology described in this article may help the increase of titanium dioxide quality produced from ilmenite.
They include a long-term sequestration of carbon dioxide in the air and modified physical and chemical properties of red muds. ... This study focuses on the extraction of titanium from red mud and ...
The feasibility of an integrated technological route for comprehensive utilization of red mud was verified in this study. Valuable components in the mud, including Fe2O3, Al2O3 and SiO2 were stepwise extracted by magnetic separation and sulfuric acid leaching from reduced red mud, and meanwhile TiO2 was enriched in the leaching …
Considering the limitations of the Bayer process, increasing demand on energy in the aluminium industry and tighter environmental regulations related to the disposal of red mud, the results from the alkali-based roasting process for the extraction of alumina from red mud and bauxite are described in section 7.3.3. 5. Extraction of …
Bauxite residue, known as red mud, is a by-product of alumina production using the Bayer process. Currently, its total global …
acidic wastewater was 97.59% under the molar ratio of titanium dioxide to phosphoric acid of 1:2.2, the reaction temperature ... to extract scandium from synthetic red mud …
Numerous methods have already been studied for hydrometallurgical treatment of red mud, especially for the recovery of various metallic components such as iron, aluminum, titanium or rare earth elements. This study focuses on the extraction of titanium from red mud and in particular the mineralogical changes, induced by leaching.
Red mud is the waste of bauxite refinement into alumina, the feedstock for aluminium production 1.With about 180 million tonnes produced per year 1, red mud has amassed to one of the largest ...
Fig. 2 presents the particle size of red mud. It can be seen from that the average particle size is 23.94 μm, and 60% less than 100 μm with a specific surface area of 2500 cm 2 /g. Mineral phases and distributions of iron, aluminum and titanium in the phases in red mud are listed in Tables 2 – 4, respectively.It can be seen from that iron, …
Furthermore, red mud production is predicted to rise in the future as the grade of bauxite ore declines as a result of early extraction of the highest-quality …
Recovery of titanium and vanadium from red mud. Titanium is mainly present as titanium dioxide (TiO 2). It is a popular photocatalyst and applied in the manufacture of white pigments. The concentration of anatase or rutile titanium in the red mud varies between 2.5 wt.% and 22.6 wt.% (Gräfe et al., 2011), as shown in Table 1.
The waste sulfuric acid solution generated from titanium dioxide production is called titanium dioxide waste acid (TWWA), which is an important resource for scandium production. A way including enrichment and purification stages for recovery and purification of Sc from TWWA with 10% P204 - 5% TBP synergistic extraction system …
Titanium dioxide industry produces a large amount of titanium white waste acid every year. ... were attractive for selective extraction of scandium from acid leaching solution of red mud. The ...
Red mud is a polymetallic waste generated during Bayer's process of alumina production. High alkalinity (pH > 11), multiple elements, and micron-sized particles make red mud recycling energy-intensive and challenging. The following work presents a hydrometallurgical flowsheet for separation of different red mud elements and recovery …