The HIsmelt smelting reduction process is an efficient direct reduction process for smelting vanadium titanomagnetite ores. About 80% vanadium is enriched in the reduction slag, however, due to the low vanadium and high calcium content in reduction slag, it is difficult to extract the vanadium economically. In this study, a process featuring …

Trans. Nonferrous Met. Soc. China 28(2018) 2528âˆ'2537 Appropriate titanium slag composition during smelting of vanadium titanomagnetite metallized pellets Shuai WANG, Yu-feng GUO, Tao JIANG, Feng CHEN, Fu-qiang ZHENG, Min-jun TANG, Ling-zhi YANG, Guan-zhou QIU School of Minerals Processing and …

be upgraded to high-titania slag to produce titanium dioxide that is needed for further titanium products. The carbothermic reduction and subsequent smelting of ilmenite in electric arc furnace (EAF) is the critical process for high-titania slag production worldwide.[1] To optimize and control the smelting process, the detailed

1. Introduction. Vanadium-titanium magnetite (VTM) is an iron ore rich in vanadium, titanium, and other valuable elements, making it highly valuable for comprehensive utilization [1, 2].China is one of the largest producers of VTM in the world, with proven reserves of more than 18 billion tons of VTM as of 2019 [[3], [4], …

The results indicated that the electrolysis of magnesium chloride and the smelting of titanium slag accounted for 39.6% and 22.4% of the total impact of Kroll process, respectively. The accumulative energy consumption of the titanium sponge production in China was 423 GJ/t. Electric power accounted for 66% of the accumulative energy …

Electric-furnace smelting has become the dominant process for the production of the titanium slag from ilmenite in China. The crystallization behaviors of anosovite and silicate crystals in the high CaO and MgO titanium slag were studied to insure smooth operation of the smelting process and the efficient separation of titanium slag and …

Titanium resources are abundant in China; however, most Ti exists in middle- and low-grade ores with complex multi-metals such as V and Cr. ... Ilmenite contains considerable impurities that must be removed for producing titanium slag via electric furnace smelting. Titanium slag can be classified as ultra-grade slag (UGS) …

Titanium metal and alloy are key materials for technological development, which significantly promote the development of the high-tech economy in China. The consumption of high-end titanium materials and the developmental level of the titanium industry are important indexes of a country's comprehensive power. However, at …

However, the current process of extracting titanium from blast furnace slag is not yet perfect (Gupta et al., 2021). This is attributed to the TiO 2 content of TBF titanium-containing slag, which is generally lower than 25 % (Ma et al., 2021, Ma et al., 2020), and Ti in the

The control temperature for smelting VTM using the HIsmelt process is 1425°C, with a reduction time of 20–30 min, which is conducive to the transfer of vanadium to the molten iron and the enrichment of titanium in the slag. To ensure vanadium and titanium are efficiently utilized, a basicity control of 0.8 is appropriate.

Titanium slag smelting is the process of selectively reducing the mineral raw material of iron metatitanate to iron, and enriching the oxides of titanium at high temperatures using a DC furnace. ... -Level Youth Talent Special Support Plan" of Kunming City (C202014002), the National Natural Science Foundation of China (51904137), the Applied ...

The sodium smelting of vanadium–titanium magnetite can achieve the comprehensive utilization of Fe, V, and Ti. However, the generation of alkaline slag during this process may cause damage to refractory materials. The wettability and corrosion behavior of alkaline slag on three types of refractory (MgO–C, SiC, and high alumina …

Studies were focused on blast furnace slag [3–9]; how-ever, limited information is available regarding the smelt-ing titanium slag. To develop new process, researchers should consider the recovery of titanium in direct reduction and smelting titanium slag. Yang et al. [10] and Li [11] investigated the acidolysis of smelting titanium slag. Zhang

Based on the production practice of a 30MWA large DC electric furnace in Yunnan, this paper discusses the basic reactions in smelting titanium slag, and …

This paper demonstrates the results on the experimental smelting of the titanium rich slag and complex titanium-containing ferroalloy under the large-scale …

More than 65% of ilmenite is smelted using electric furnaces worldwide and 85% in China, where it is the primary production method for ilmenite [ 6 ]. Ilmenite is smelted in an electric furnace to obtain electric …

For the vanadium-titanium magnetite of Panxi in China, the recovery of Fe was over 98%, the recovery of V in molten iron was over 85% and the TiO2 content in slag was about 43% under the optimal ...

Low cost and green recycling of titania-bearing slag is an important aspect of the circular economy to ensure the sustainable development of the titanium industry. …

Influence of Anthracite-to-Ilmenite-Ratio on Element Distribution in Titanium Slag Smelting in Large DC Furnaces. Shihong Huang 1, Ting Lei 2, Yan Cui 3, Zhifeng Nie 4,*. 1 Office of Science and Technology, Kunming University, Kunming, 650214, China 2 Kunming Metallurgy College, Kunming, 650033, China 3 College of Chemistry and Chemical …

8 Citations. Explore all metrics. Abstract. As the titanium industry rapidly develops, low-grade ilmenite resources are drawing global attention. The direct use of …

The reserves of vanadium–titanium magnetite exceed 18 billion tons [], accounting for over 90 wt.% of China's titanium resource reserves [2, 3].At present, the blast furnace method of smelting vanadium–titanium magnetite only recovers Fe and a part of V [].Due to the low titanium content [5, 6] and the difficulty in dissociating the Ti …

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 electric-furnace smelting has become the dominant process to produce titanium slag from ilmenite in China. During the process of the electric-furnace smelting, iron oxide in ilmenite concentrate is reduced ... Based on the results, the smelting parameters of titanium slag will be adjusted in industrial production in further works to enhance ...

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 a slag …

The titanium slag containing more than 80% TiO2 can be obtained by enrichment smelting of ilmenite in a large high-power enclosed direct current electric arc furnace, …

in the metal Fe phase or be enriched in titanium slag. 1. Introduction China's titanium resources account for 28% of the global total, and its titanium reserves rank first in the ... The technological process of smelting titanium slag by DC electric furnace method is to mix ilmenite and reducing agent anthracite in a certain proportion, then ...

slag, titanium oxide is separated from iron to obtain titanium slag containing 72~95 % TiO. 2 [2]. Compared with wet-process production of titanium-rich materials, DC electric arc furnace smelting high- titanium slag has lower requirements on the taste of concentrates, and does not produce

• Aluminum cells [6][7][8] • Ilmenite (FeTiO 3 ) smelting [11] [12][13][14] • Ferroalloy (ferromanganese, silicomanganese, ferrochrome) production [17,18] • Zinc fuming processes [10,[19 ...

Titanium slag in this study was produced by subjecting titanomagnetite concentrate to direct reduction-electric furnace smelting. Processing mineralogy and mineral phase reconstruction behavior at high temperature and slow cooling treatment were examined by chemical analysis, X-ray diffraction (XRD), optical microscopy (OM), …

The present study demonstrates the dependence of viscosity on chemical composition and temperature of high-titania slag, a very important raw material for producing titanium dioxide. The results indicated that completely molten high-titania slag exhibits a viscosity of less than 1 dPa s with negligible dependence on temperature. …