Synthesis of Rutile TiO2 from Panzhihua Sulfate Titanium Slag …
Characterization by XRD. The XRD patterns of raw sulfate titanium slag before and after microwave roasting are shown in Fig. 1a and b, respectively. As indicated in Fig. 1a, the main phase of sulfate titanium slag is the anosovite phase (Fe 3 Ti 3 O 10).The XRD results also show that the diffraction peak intensities for the strongest preferential …
(PDF) Effect of basicity on the crystallization behavior of TiO2 …
The titanium-bearing blast furnace slag contains much amount of unemployed titanium and thus causes both resource waste and environmental pollution. ... range f rom 1.0 to 1.4. Thermody namic ...
Effect of Roasting Characteristics on the Alkali Fusion
To contribute to the development of sustainable metallurgy, the effect of roasting characteristics on the alkali fusion behavior and mechanism of melting titanium slag was investigated in detail using X-ray diffraction and scanning electron microscopy. The results indicated that anosovite, diopside, and anorthite could be decomposed by molten …
Study of the oxygen reduction of low valent titanium in high titanium …
The high titanium slag from Panzhihua Iron and Steel Research Institute (Panzhihua city, Sichuan Province, P.R. China), was used in this study. ... In the long-time range (50–90 min), the roasting follows the Ginstling-Brounstein Model, during which the acceleration of air blow rate is most favorable. With intensified roasting kinetics, the ...
Improving the production efficiency of high-titania slag in Ti
To determine the composition of final products, i.e., titanium slag, X-ray fluorescence analysis was executed. As a result of Fe and Ti behaviours in slag, SiO 2 addition showed no significant difference from the slag without flux. ... (Fe 2+ and O 2−) in the slag phase at low or moderate FeO concentration range, while the reaction is ...
Viscosity of TiO2-FeO-Ti2O3-SiO2-MgO-CaO-Al2O3 for High-Titania Slag
It is found that the appropriate range of input current and diameter of pitch circle are about 30,000 A and 3000–3500 mm, respectively. ... increasing the preparation efficiency of titanium slag ...
Metals | Free Full-Text | Effects of Basicity and …
The optimum range of MgO content and suitable basicity in the titanium slag were identified according to the isothermal section of phase diagram at 1400 °C of CaO-SiO 2-MgO-TiO 2 (50%)-Al 2 O 3 …
2018 Minerals Yearbook
compared with 2017. Published prices for titanium slag were not available. Based on u.S. Census Bureau data, the yearend range of unit values for titanium slag imports from slag-producing countries in 2017 was $600 to $690 per metric ton and in 2018 was $770 to $790 per metric ton. The u.S. Department of Labor, Bureau of Labor Statistics
Structural role of titanium on slag properties
The presence of titanium in ground granulated blast-furnace slags (GGBS) has been suspected to modify cement properties. This study provides the first evidence of a relation between the TiO 2 content of slags and the mechanical properties of mortars based on slag cements. It is observed that only the slags containing less than 1%TiO 2 show a …
Thermodynamics analysis and experiments on Ti-bearing …
Ti-bearing blast furnace slag was modified with titanium slag, SiO 2 and O 2 at 1450 °C, stirring speed 500 rpm, liquid–solid ratio 3, leaching temperature 95 °C, and leaching time 90 min: ... FeOOH can be prepared in the pH range, and it can be converted into Fe(OH) 3 by changing the operating conditions. 34. Open in a separate window.
A Novel Process for Direct Reduction of Titanium …
However, there are many problems such as the titanium slag being polluted, being of low grade, requiring high energy consumption, leading to serious equipment corrosion, and high-grade requirements for ilmenite [10,11,12,13]. ... In the temperature range of 900 ℃ to 1000 ℃ studied, the hydrogen content in the gas has the …
A literature review of titanium metallurgical processes
Approximately 95–98% Ti in the titanium slag could be extracted under optimal conditions. In addition, the TiO 2 purity in the product was up to 99.3%. A similar process …
Recovery of Vanadium, Titanium, and Iron from Vanadium
A high-titanium slag with 85.32% titanium was obtained by the iron powder induction leaching and alkali leaching. Additionally, the additive (NH4)2SO4 could be recycled, achieving zero emission of waste gas. ... The first-stage temperature in the range of 210–330 °C was uniformly raised at the rate of 10 °C/min and the temperature was …
Minerals, slags, and other feedstock for the production of titanium …
Abstract. The production of raw titanium metal relies on natural and man-made feed materials, including natural rutile, titanium dioxide slags of different grades ("chloride slag," UGS, and "sulfate slag"), and synthetic rutile. Natural rutile was the feedstock of choice at the early years of the Kroll process, but nowadays it comes in ...
Synthesis of As-Cast Ti-Al-V Alloy from Titanium-Rich
Experimental Methods. For preparing raw materials before the synthesis, titanium dioxide, rutile, high-titanium slag, V 2 O 5 powder, KClO 3, and CaO were heated in air in the temperature range of 423–573 K for 24 h to remove water.KClO 3 was used as a exothermal agent for heat supply, and CaO was used as the slag former that combined …
Evaluation of Titania-Rich Slag Produced from …
Fluxless smelting in a direct-current open-arc furnace is proposed as an opportunity to improve iron and vanadium recovery and potentially unlock the titanium as …
Titanium Slag Project Update
The titanium slag project started in early 2013. Construction was completed in mid-2014 and started to operate in September of the same year. Until March 2015 over 20,000 tonnes of qualified titanium slag has been produced, as well as 14,000 tonnes of reduced ilmenite. Henan Billions has received a positive response from users of both titanium ...
Investigation on phase transformation of titania slag using …
The first step is a dehydration step, characterized by an endothermic DTA peak in the temperature range 100–110 ... To convert titanium slag to TiO 2 with maximum efficiency, mechanical activation is an important pretreatment step to control the particle size of the titanium slag and the subsequent leaching process. Our study used a planetary ...
176 TITANIUM MINERAL CONCENTRATES
Slag, 80%–95% TiO25 687–742 612–682 621–700 699–738 740–900 ... In Saudi Arabia, a project to produce up to 500,000 tons per year of titanium slag was scheduled to be commissioned in 2020. Other projects were being developed in Australia, Mozambique, and Tanzania. ... Data series revised to reflect annual average unit value range of ...
Thermodynamic Properties and Viscosities of High …
the slag decreased and the content of perovskite phase in the slag increases with the increase of TiO 2 content. Although the influence of TiO 2 and basicity on the viscosity of slag has been widely researched,9) much less attention has been paid to ultra-high titanium slag from the perspective of heat input.
Carboaluminothermic Production of Ferrotitanium from …
Extraction of titanium alloys from titanium oxide minerals involves carbothermic, aluminothermic, and silicothermic smelting routes. The carbothermic smelting of ilmenite produces pig iron and TiO 2-rich slag, where the operating temperature is about 1650 °C to 1700 °C.Smelting of pre-reduced ilmenite (≈ 60% metallization of Fe) has …
Production of Rutile TiO2 Pigment from Titanium Slag …
An alternative route was proposed for preparing rutile titanium dioxide (TiO2) white pigment. The process involves the digestion of titanium slag with sulfuric acid, subsequent hydrolysis of ...
A detailed assessment of global Zr and Ti production
Titanium dioxide content of chloride grade slag (sometimes referred to as C slag) may range from 85 to 91% (Tronox 2018b; Iluka Resources 2011), and between 70 …
A literature review of titanium slag metallurgical processes
A literature review of titanium slag metallurgical processes. January 2012. Metalurgia International 17 (7):49-56. Authors: Haoyan Sun. Chinese Academy of Sciences. Jingsong Wang. Tianjin University.
Iron Removal and Recovery in the Titanium Dioxide
The carried out investigations showed that the reaction ability of investigated samples of raw materials is decreased in the range: autoclave concentrate > titanium slag > rutile concentrate ...
Physicochemical properties and structure of titania …
Abstract. The titanium industry can hardly bypass the titania-containing slags, and the slag physicochemical properties are essential in the metallurgical reactor …
Titanium Mineral Concentrates
Ilmenite accounts for about 90% of the world's consumption of titanium minerals. World resources of anatase, ilmenite, and rutile total more than 2 billion tons. Substitutes : Ilmenite, leucoxene, rutile, slag, and synthetic rutile compete as feedstock sources for producing TiO. 2. pigment, titanium metal, and welding-rod coatings. e. Estimated.
Fusion Separation of Vanadium-Titanium Magnetite and …
3.3. Effect of Melting Temperature on Slag Phase. When the basicity is 1.2 and the total carbon content was equal to 15%, the Ti and Fe contents in titanium slag, at 1450 °C, 1480 °C, 1500 °C, 1520 °C and 1550 °C, were equal to values given in Figure 7. The XRD analysis of slag system is depicted in Figure 8.
Titanium-Enriched Slag Prepared by Atmospheric …
The Ti slag comprises varying content of TiO 2 in the range of 22 wt.% to 25 wt.%, and there have been no known effective means of treating the slag [11,12]. Thus, this Ti slag, which is a valuable resource, becomes waste polluting the environment. ... Comparing the enrichment of titanium slag in this work and the titanium concentrate in …
A detailed assessment of global Zr and Ti production
Titanium dioxide content of chloride grade slag (sometimes referred to as C slag) may range from 85 to 91% (Tronox 2018b; Iluka Resources 2011), and between 70 and 86% for sulfate grade slag (sometimes referred to as S slag) (Tronox 2018b; Gázquez et al. 2009) depending on the operation as well as the time in history. Titania slag …
