As the titanium industry rapidly develops, low-grade ilmenite resources are drawing global attention. The direct use of low-grade ilmenite can result in low production efficiency and heavy pollution. In addition, the production of high-titanium slag via electric furnace melting consumes significant energy and possesses low production efficiency.

 — Introduction. China is the world's largest steel producer, with the China Iron and Steel Association estimating that the country's crude steel production in 2022 will be 935 million tonnes [Citation 1].Steel slag mainly refers to the blast furnace slag and converter slag produced in the process of iron making and steel making, and with the …

product and is utilized as a raw material in steel production. Titanium slag can be utilized to produce rutile with a TiO2 content of 92–96 %. The industrial production of synthetic rutile consists of two stages: reduction smelting and acid leaching, which generate a ... (3 plants), Mexico, and Taiwan with a total capacity of 1000 thousand ...

 — As titanium has good physical and chemical properties, e.g. excellent strength, corrosion resistance, fatigue resistance, fracture toughness, and high-temperature ...

 — Currently, the production of Ti slag is based on the smelting of ilmenite concentrate in electric ore-thermal furnaces at a temperature of 1600–1700 °C, which is associated with high energy costs (⁓ 2500 kWh per 1 ton of slag).

In this research, a potentially more ecofriendly chemical pathway for TiO 2 production from concentrated titanium ore, aka titania slag, is presented. The new method consists of three critical steps including transformation of the titania slag to a lower-valence titanium suboxide by aluminothermic reduction, digestion by using mild acid, and ...

 — The titanium rich slag was produced from the low-grade ilmenite concentrate, i.e. the low TiO 2 content and the high content of impurities. During the production of the high-grade titanium slag (TiO 2 content: 75–80%), the impurity elements are transferred into the associated alloyed metal (cast iron). Thus, it can be used to smelt the steel.

 — UK: Rio Tinto's production of titanium dioxide slag has fallen by 24% year-on-year to 246,000t/year in the first quarter of 2016. The company said that its Iron and Titanium division had optimised production in line with demand.

 — DOI: 10.1021/ACSSUSCHEMENG.8B05102 Corpus ID: 104410766; Potentially More Ecofriendly Chemical Pathway for Production of High-Purity TiO2 from Titanium Slag @article{Zhu2019PotentiallyME, title={Potentially More Ecofriendly Chemical Pathway for Production of High-Purity TiO2 from Titanium Slag}, author={Xiaofan Zhu …

 — In terms of averages, energy use was higher for HMS (yearly average of between 0.90 – 2.95 GJ/t valuable heavy mineral (VHM)) compared to ilmenite-dominant hard-rock mining (yearly average of between 0.21 – 0.49 GJ/t ilmenite) and Ti-slag production required between ∼10 – 14 GJ/t of saleable product (including titanium slag …

 — Abstract. We investigated the carbothermic reduction process of ilmenite ore at 1873 K with flux addition. Without flux, the pseudobrookite phase with a high melting temperature was precipitated...

 — The titanium slag containing 72.7% TiO2 and 7.8% Fe2O3 was leached at varying solid/liquid (S/L) ratio, particle size, leaching time and acid concentration. ... Iron removing from titanium slag ...

Québec. Rio Tinto Iron and Titanium (RTIT) Quebec Operations have been processing ore from northern Quebec for more than 70 years. They are a world leading producer of high-grade titanium dioxide feedstock, a product commonly used as a pigment to whiten a range of products such as paint, textiles and paper. They also produce iron and steel used in …

 — Besides the slag, also pig iron is produced, but the slag is the main product of the process. Because the subsequent fluidized-bed chlorination, used to manufacture pigment from the slag, can only ...

 — Titanium metal was successfully prepared from high-titanium slag via an electro-deoxidation process in molten CaCl2 melt in argon. The effects of sintering and electrolysis temperatures on the electro-deoxidation process were investigated. The results show that the porosity of the pellet decreases rapidly with the increase of sintering …

 — Samples of titanium-containing slag of AO EVRAZ NTMK from blast furnace processing of Ural titanomagnetite ore concentrate of the Kachkanar deposit were investigated to study the possibility of titanium extraction. The initial samples differed in the crystallization method. One sample was obtained by layer-by-layer pouring of slag into …

 — The process of titanium slag production is the process of smelting ilmenite concentrate in arc ore-thermal furnaces (OTF) in a semi-closed mode with the use of a …

 — The fluoroammonium method for processing titanium slag using NH 4 HF 2 involves slag decomposition of in NH 4 HF 2 melt followed by silicon admixture sublimation. ..., UK, Mexico, and Saudi ...

 — This paper demonstrates the results on the experimental smelting of the titanium rich slag and complex titanium-containing ferroalloy under the large-scale laboratory conditions that simulate industrial one. The technological researches of the process were performed on an ore-thermal furnace with 200 kVA transformer power. …

 — UK: Rio Tinto's production of titanium dioxide slag has fallen by 24% year-on-year to 246,000t/year in the first quarter of 2016. The company said that its Iron and Titanium division had optimised production in line with demand. It reported that two of nine furnaces at Fer et Titane, Canada and one of four furnaces at Richards Bay Minerals, …

 — China is the leading mine producer of titanium minerals across the globe. In 2023, mine production of ilmenite in the East Asian country reached about 3.1 million metric tons of titanium...

 — The process of production of rutile concentrate for coating welding electrodes by caking titanium slag with soda ash and sequential leaching the cake in water and a hydrochloric acid solution was studied. ... G.N. Production of titanium dioxide concentrate from slag of ilmenite reducing smelting. Russ J Appl Chem 86, 124–126 …

Titanium slag is classified into 2 categories based on the TiO2 content: Low slag (75 – 85% TiO2) used for pigment production by Sulphate process and High slag (> 85% TiO2) used for pigment production by Chloride …

 — A similar process using caustic leaching for the production of titanium dioxide from titanium slag was reported by Zhang et al. (2009). Almost complete titanium dissolution was achieved when finely ground titanium slag (− 61 + 51 μm) was reacted with a 10 M NaOH solution using an alkali to TiO 2 ratio of 4 at 220 °C for 4 h.

Domestic Production and Use: In 2021, one company recovered ilmenite and rutile concentrates from its surface-mining operations near Nahunta, GA, and Starke, FL. A second company processed existing mine tailings to recover ... Titanium slag 2620.99.5000 Free. Depletion Allowance: Ilmenite and rutile, 22% (domestic), 14% (foreign).

 — The paper presents the conversion process from titanium slag to rutile TiO 2 through adopting the process route in the order of "Alkali leaching-Microwave roasting-Acid leaching-Microwave calcination". The transformations of the slag samples in terms of phase composition, molecular structure, and other changes before and after the process were …

 — The titanium industry can hardly bypass the titania-containing slags, and the slag physicochemical properties are essential in the metallurgical reactor design and …

 — The titanium-rich slags produced by ilmenite smelting are unusual in several respects, including their low viscosity, high electrical conductivity, propensity to solidify predominantly as one...

 — The titanium industry can hardly bypass the titania-containing slags, and the slag physicochemical properties are essential in the metallurgical reactor design and process control. The TiO2–FeO-based slags and TiO2–SiO2–CaO-based slags are the main metallurgical slag systems in the titanium resource utilization processes. To …

Waste slag containing titanium (50.15%) is generally formed during the production of sponge titanium via the Kroll process. On average, more than 200 kg of titanium-containing waste slag is produced per ton of titanium tetrachloride [4]. Owing to the small size of the slag, addition of titanium-containing waste slag at