A New Route of Roasting-Flotation-Leaching for the Beneficiation …
In this work, a complete beneficiation technical route combining physical and chemical methods, namely a roasting-flotation-leaching scheme, is proposed to produce a qualified grade Ti-concentrate from altered Vanadium titanomagnetite (VTM) ore. Based on the character of the ore sample, it is recommended to recover the Ti-bearing …
Solvent Extraction of Ti(IV) from Hydrochloric Acid Leaching …
ABSTRACT A hydrochloric acid leaching solution of ilmenite contains Fe(III) and Ti(IV) and small amount of Mn(II) and Si(IV). Solvent extraction was employed to separate Ti(IV) and Fe(III) from the leaching solution. The co-extracted Ti(IV) was scrubbed from the loaded Alamine 300 by using a pure Fe(III) solution with 9 M HCl. Ti(IV) was then …
Yaohui Yang's research works | China University of …
Reference: A New Route of Roasting-Flotation-Leaching for the Beneficiation of Ti-Bearing Minerals from Altered Vanadium Titanomagnetite Selective flotation separation of ilmenite from titanaugite ...
US3897537A
An ilmenite ore may be beneficiated by oxidation to yield a pseudobrookite-containing material, reduction of the oxidation product to give a material having at least 4% of its iron content in the ferric state, and leaching of the reduced material. Leaching is facilitated by the previous two steps. The beneficiate is suitable for chlorination under fluidised-bed …
A review of mineral processing of ilmenite by flotation
Table 1 presents basic information about ilmenite properties (rutile properties are also provided for a comparison), and Fig. 2 shows the crystal structure of ilmenite. The theoretical TiO 2 content in ilmenite is 52.7% and the specific gravity of ilmenite is high (ilmenite is considered to be a heavy mineral with the specific gravity of about 5). Fig. 2 …
A review of mineral processing of ilmenite by flotation
Microwave irradiation is also documented to be beneficial in improving ilmenite flotability. A series of studies show that this pre-treatment method can …
Beneficiation of Ilmenite to Rutile by Selective Chlorination …
Several methods have been investigated in the literature to upgrade ilmenite into synthetic rutile such as smelting (Murty et al. 2007), acid leaching (Mahmoud et al. 2004), ion-exchange ...
Chloridization beneficiation of ilmenite
Studies on beneficiation of ilmenite were carried out by using titanium chloride as the chloridizing agent in a laboratory scale fluidized bed reactor. Experiments were …
Studies on Beneficiation and Leaching Characteristics of
The beneficiation process enhanced the REEs from 200 to 240 mg/kg at a yield of 43%, with a subsequent reduction in the iron oxide content from 37.5 to 29.2%. Further, leaching efficiencies of REEs and impurity (Fe) co-extraction were studied before and after physical beneficiation.
Production of synthetic rutile from tin ore beneficiation
This paper examines the effectiveness of the method for producing synthetic rutile from ilmenite through pre-oxidation and reductive leaching of pre-oxidized …
Beneficiation of titaniferous ores by selective separation of …
(2008). Beneficiation of titaniferous ores by selective separation of iron oxide, impurities and rare earth oxides for the production of high grade synthetic rutile. Mineral Processing and Extractive Metallurgy: Vol. 117, No. 3, pp. 157-165.
Leaching Titaniferous Magnetite Concentrate by Alkaline …
Leaching titaniferous magnetite concentrate with alkali solution of high concentration under high temperature and high pressure was utilized to improve the grade of iron in iron concentrate and the grade of TiO2 in titanium tailings. The titaniferous magnetite concentrate in use contained 12.67% TiO2 and 54.01% Fe. The …
An Overview of Beneficiation and Hydrometallurgical
The demand for rare earth elements for everyday technology and applications has initiated much research into the extraction and recovery of these rare earth elements. An otherwise unknown group of minerals, eudialyte is a zircon silicate consisting of rare earth oxides (REO), contained in a unique mineral structure and represented by a …
Separations | Free Full-Text | Separation of Ilmenite from …
Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, resulting in the low-efficiency utilization of titanium resources. Here, the separation of ilmenite from VTM ore is studied by combining magnetic separation and flotation technologies. In particular, …
A comparative study on the chloride effectiveness of synthetic rutile
Ilmenite(FeTiO 3) ore is a raw material for producing TiCl 4 through the chlorination method and the sulfuric acid reaction method. TiCl 4 is used as a raw material for producing metallic titanium ...
Reductive leaching of ilmenite ore in hydrochloric acid for …
DOI: 10.1016/J.HYDROMET.2003.08.001 Corpus ID: 95574087; Reductive leaching of ilmenite ore in hydrochloric acid for preparation of synthetic rutile @article{Mahmoud2004ReductiveLO, title={Reductive leaching of ilmenite ore in hydrochloric acid for preparation of synthetic rutile}, author={Mohamed H. H. Mahmoud …
Chemical benefication of Rosetta ilmenite by direct …
The production of synthetic rutile (89% TiO 2) from Rosetta ilmenite concentrate has been studied. High acid concentration (high ilmenite/acid molar ratio) …
Leaching of ilmenite to produce titanium based materials: a …
Leaching of ilmenite in HCl is known to remove many impurities from ilmenite producing less contaminated TiO 2 while high acid concentrations are found to …
Alkali roasting of bomar ilmenite: rare earths recovery …
In this work, the alkali roasting of ilmenite (FeTiO 3 ) is presented as a process route for integrated beneficiation of the mineral for rutile-rich phase and rare earth oxides; the latter is released as a consequence of physical changes in the ilmenite matrix, during the water leaching after roasting. The oxidative alkali roasting transforms ilmenite mineral into …
A review of mineral processing of ilmenite by flotation
Among the various mineral resources of weathering origin, the regolith-hosted ilmenite and iREEs deposits are worthy of attention because of their significant roles in the global supply chain.
Beneficiation of Direct Reduction-Melting Titania Slag
Feed material was prepared from massive Allard Lake Ilmenite ore; and the effects of feed size, temperature, hydrochloric acid solids on the leaching rate were studied.
Process development to recover rare earth metals from monazite …
Beneficiation using flotation, gravity, electrostatic and magnetic devices. ... In placer deposits, monazite occurs as a minor constituent while the major minerals are ilmenite, rutile, zircon, and quartz. ... Leaching was followed by selective separation of Th and U from lanthanides (Abdel-Rehim, 2002).
Selective precipitation study for the separation of iron and …
DOI: 10.1016/j.hydromet.2019.105242 Corpus ID: 214199123; Selective precipitation study for the separation of iron and titanium from ilmenite @article{Purcell2020SelectivePS, title={Selective precipitation study for the separation of iron and titanium from ilmenite}, author={Walter Purcell and Manish Kumar Sinha and Amanda Qinisile Vilakazi and M. …
Preparation of synthetic rutile from reduced ilmenite …
The work presents a study of the preparation of synthetic rutile from the reduced ilmenite through the aeration leaching process. The effects of hydrochloric acid and anthraquinone-based redox catalyst on the improving the efficiency of the aeration …
Combined production of synthetic rutile in the sulfate …
This paper describes a novel process for preparation of synthetic rutile using an intermediate, sulfated ilmenite from the sulfate TiO 2 process as the feedstock.The synthetic rutile can be obtained by selective thermal decomposition of the sulfated ilmenite, followed by targeted leaching for removal of various impurities.
Preparation of synthetic rutile from reduced ilmenite …
However, a small portion of ilmenite particles acquired from different mine lots and beneficiation processes are very fine, which would fall into the overflow particle size. ... The Austpac ERMS and EARS processes for the manufacture of high-grade synthetic rutile by the hydrochloric acid leaching of ilmenite. Proceedings of Chloride …
Chemical benefication of Rosetta ilmenite by direct reduction leaching …
Ilmenite roasting to synthetic rutile (91–95% TiO 2) involves two main variants; namely, the Becher process (Australia) using ilmenite grade of 57–63% TiO 2 and the Benelite process in which an acid leaching step follows the roasting process (USA, India, and Malaysia) and can treat a wide range of ilmenite 50–63% TiO 2 (Becher et al ...
A Review on the Recovery of Titanium Dioxide from Ilmenite …
Pretreatment of ilmenite are required to enhance leaching efficiency of ilmenite. Strong acid leaching is promising in terms of the purity of the produced TiO2, …
(PDF) Photo induced reductive leaching of iron from ilmenite …
Becher, R. G. 1963. An improved process for the beneficiation of ores. containing contaminating iron, Australian Patent 247,110, 1963. ... Acid leaching of ilmenite (FeTiO3) obtained from beach ...