A simulated ilmenite leach liquor containing~78 g/L Ti,~35 g/L Fe and~90 g/L sulphuric acid was extracted with Cyanex 923 (a mixture of C 6 and C 8 trialkylphosphine oxides) in kerosene giving 78. ...

The selective recoveries of titanium(IV) and iron(III) from the synthetic hydrochloric acid leach liquor of ilmenite, i.e., 1.8–11 M (1 M=1 mol dm−3) hydrochloric acid solutions containing 0. ...

Volume 186, August 2022, 107744. Solvent extraction of titanium from ilmenite hydrochloric acid leachate: Optimization and investigation of extraction reactions of all …

The beneficiation of titania (TiO 2) by sulfuric acid (H 2 SO 4) pressure leaching of Panzhihua ilmenite was investigated.The reaction temperature, H 2 SO 4 concentration, and concentration of ferrous ions (Fe 2 +) had significant effects on the enrichment of TiO 2.With increasing reaction temperatures, the dissolution of iron from …

For the sulfate process, TiO 2 nanoparticles have been obtained from low-grade ilmenite ore via two consecutive acid digestion and solvent extraction processes. ...

While the chloride process requires high-grade raw materials and requires chlorine gas. Therefore, in this study, the synthesis of TiO 2 from ilmenite Banten using caustic fusion, acid leaching ...

DOI: 10.1016/J.HYDROMET.2011.12.023 Corpus ID: 96147564; Solvent extraction of titanium from the simulated ilmenite sulfuric acid leachate by trialkylphosphine oxide @article{Hao2012SolventEO, title={Solvent extraction of titanium from the simulated ilmenite sulfuric acid leachate by trialkylphosphine oxide}, author={Xiaoli Hao and Li …

In the industrial production of TiO2, the sulphate process and chloride process are the two common methods utilized for extracting TiO2 from ilmenite and rutile, respectively. 2.1. Sulphate Process Statistical data reveal that 98% of manufacturers in China use the sulphate process for the production of TiO2 [33].

First, the finely ground ore material is collapsed with a 20% (v/v) HCl solution at 70 C, where 94.6% of the entire titanium content in ilmenite has been successfully extracted into the leachant after a 3 h extraction. The composition of the ilmenite leachant has been found to be 36.4 g/L and 23.0 g/L for iron and titanium, respectively.

In short, the initial step of the process involves converting the raw material, ilmenite, into titanium-sulphate through acid digestion. The resulting compound is then hydrolysed to yield hydrous titania, TiO 2 ·H …

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. ... Solvent extraction of titanium from ilmenite hydrochloric acid leachate: Optimization and investigation of extraction reactions of all contained metal ions ...

In the sulfate process, the ilmenite ore is dissolved in sulfuric acid solution to prepare titanium sulfate solution. This solution is further purified and hydrolyzed to …

An extraction efficiency of 97% total titanium was obtained by 1.5 M TBP in kerosene from initial 10g/L ilmenite leach liquor at 25 ± 2 o C in a single extraction stage.

Therefore, titanium is easily bonded to oxygen and carbon at a high temperatures11,12. Titanium is a metal which is resistant to corrosion and high temperatures, with a high melting point, and low weight. Titanium can be extracted by hydrometallurgy method which includes ilmenite leaching with hydrochloric acid and sulfuric acid13-15. This ...

Ilmenite is the most abundant titanium dioxide-bearing ore containing 40–65 % TiO 2, depending on its geological history.Leucoxene (Fe 2 O 3 · nTiO 2) contains typically more than 65 % TiO 2 and is a natural alteration product of ilmenite. Ilmenite and Leucoxene may contain magnesium, manganese, vanadium, aluminum, calcium, chromium, and …

Extraction of vanadium from titanoferrous magnetite: mineral processing and enrichment methods. In Vanadium, 2021. 4.2.5 Ilmenite. Granular ilmenite is the main mineral used for the recovery of titanium. Granular ilmenite is often associated with titanomagnetite, or distributed in silicate mineral grains, and forms via automorphism and semiautomorphism …

Possibilities of Titanium and Iron Extraction from Ilmenite-Titanomagnetite Ores of Sikhote-Alin (Russia) Published: 18 January 2024; Volume 2023, pages 1305–1308, (2023) ... ammonium sulfate (NH 4) and concentrated nitric acid HNO 3, each belonging to "chemically pure" grade. The previously mentioned components were mi) in various …

Either HCl leaching followed by solvent extraction or alkaline leaching followed by hydrolysis-calcination is recommended for the production of pure TiO 2 from …

The extraction of ilmenite minerals using the sulfate route is one of the commercial methods for producing titanium dioxide (TiO2) materials. The sulfate process requires a high concentration of sulfuric acid to achieve high extraction yield of titanium. However, this process also results in the generation of high amounts of sulfuric acid …

Upgraded slag or UGS is produced by high-pressure acid leaching of sulfate slag. ... and flotation, so as to extract fine ilmenite concentrate containing about 47% wt. TiO 2 [15]. Nonetheless, because titanium is dispersed in fine-grained mineral phases containing Ca, Mg, Al, Si, and other impurities, the recovery of titanium in the ilmenite ...

The simultaneous oxidation and 2-octanol extraction for the separation of ferrous iron from titanium(IV) in a simulated ilmenite hydrochloric acid leachate was investigated. Using pure oxygen as the oxidant and ( v / v ) 2-octanol as the extractant, the oxidation of ferrous iron and subsequent extraction of ferric iron were …

DOI: 10.1016/j.mineng.2022.107744 Corpus ID: 250999836; Solvent extraction of titanium from ilmenite hydrochloric acid leachate: Optimization and investigation of extraction reactions of all contained metal ions

Titanyl sulfate (TiOSO 4) extracted with sulfuric acid from the mineral ilmenite (FeTiO 3), which has a high content of titanium (32.2 wt.%) was study as acid solid catalyst for the oleic acid esterification. The maximum extraction of Ti was 98 wt.%.As reference catalysts sulfated titania (SO 4 2-– TiO 2) and titania (TiO 2) were …

The sulfuric acid leaching process is a mature Ti dioxide process to extract Ti from TEFS with a high Ti grade that was produced from ilmenite, while others are at the stage of laboratory research [21]. Therefore, it is necessary to research the performance and kinetics of sulfuric acid leaching of Ti from TEFS with a low Ti grade.

Generally speaking, sulfuric acid is mainly used for the leaching medium of titanium oxide and its ores. And therefore, it is of importance to study the effect of H 2 SO 4 concentration on the extraction of Ti(IV). In our study, the effect of sulfuric acid concentration the extraction of Ti(IV) was investigated within the range of 0.5–3.0 mol.L …

The results showed that ilmenite with the particle size distribution of +150 µm yielded better efficiencies when leaching was performed with an acid concentration of 7.5 M and a solid-to-acid ...

The major raw material for titanium extraction is rutile (~95% TiO 2), which quickly is being depleted. Therefore, ilmenite (FeTiO 3, 30–65% TiO 2 ) as a substitutional resource is in the ...

There are two processe to treat ilmenite concentrate, sulphate and chloride. The sulphate process was chocsen because this process treats low grade titanium ore. In this research, an attempt to ... From the series of leaching tests performe the following condition gave an maxim um extraction of titanium dioxide acid concentration 78%, leaching ...

1. Introduction. In the sulphate production process for titanium pigment, titanium is leached from the ilmenite and/or titanium slag using sulphuric acid (Zhang et al., 2011).The hydrolysis "mother" liquor discharged from the production of titanium pigment is usually called titanium white waste acid (abbreviated as waste acid) in China …

TiO2 production is a key part of Ti metallurgy and Ti recycling, and the process itself has turned out to be energy-consuming and material-consuming. New technologies are needed to utilize complex Ti ores, such as ilmenite, and reduce the carbon footprint of TiO2 extraction. Ammonium sulfate roasting has been revealed as …

Therefore, in this study, the synthesis of TiO 2 from ilmenite Banten using caustic fusion, acid leaching using hydrochloric acid, and the use of citric acid were …

Sulfuric acid causes less corrosion and can extract titanium from low grade titanium sources, although it generates a high amount of solid and acid waste. Leaching in weak acids like citric acid requires low acid concentration. This process extracts more …