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.
Figure.2: The new titaniferous slag smelting process. In this new process, the vanadium titanium magnetites are directly reduct by rotary hearth furnace, then the DRI are …
Chongqing, China, Wei.A.Lin@cisdi. 2Chongqing Sino French Tangjiatuo Wastewater Treatment Co., Ltd, Tieshanping Street, Taipingchong Village, Jiangbei District400026, Chongqing, China, ... Number The conventional titanium slag smelting usually choose the titanium concentrates as raw ma-terial. The main furnace of the conventional ...
A novel direct-current electric arc furnace (DC-EAF) was designed and constructed in this study for experimentally investigating high-titanium slag smelting, with an emphasis on addressing the ...
The blast furnace smelting of vanadium–titanium ore plays a crucial role in the efficient utilization of vanadium-titanium resources. In this research, a detailed numerical simulation study of the temperature, velocity, and concentration fields during the smelting process in a vanadium–titanium blast furnace was conducted. The actual production data from a 1750 …
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 consumption.
Titanium slags produced through ilmenite electric furnace smelting contain 60–80%TiO2, a vital titanium resource in the titanium industry. The processing and utilization of titanium slag is ...
Fluxless smelting of ilmenite to produce furnace slag as feedstock for the pigment industry is a well-established industrial practice with extensive installed smelting capacity globally.1–4 Commercial ilmenite smelters produce two products, namely titania-rich slag and a pig iron by-product. In contrast, smelting practices for titaniferous mag-
China Yunnan Metallurgical Company (CYMCO) to provide process technology and engineering design for a 30MW DC furnace ilmenite smelting facility in China's Yunnan province. Using locally mined ilmenite, it will produce 85,000 tpa of high-grade (>87%) titanium dioxide slag for use as …
More than one hundred million tons of Ti−bearing blast furnace slag (TB−slag) has been discarded in China because of the difficulty of reutilization, which requires efficient …
A novel direct-current electric arc furnace (DC-EAF) was designed and constructed in this study for experimentally investigating high-titanium slag smelting, with an emphasis on addressing the issues of incomplete separation …
Titanium-bearing blast furnace slag (TBFS) is a byproduct obtained after the blast furnace smelting process [].It can be categorized into low (W (TiO2) < 5%), medium (5% < W (TiO2) < 20%), and high-titanium slag (W (TiO2) > …
nace smelting separation process [10-12], where titanomag-netite is successively pelletized, preliminarily reduced in a rotary hearth furnace, and smelted in an electric furnace for removal of titanium slag from vanadium-bearing molten iron. Semi-steel and …
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 powder …
furnace for smelting titanium slag ... China Iron and Steel Research Institute Group Co., Ltd. 2023 Abstract The smelting reduction process of the ilmenite in an electric arc furnace (EAF) is a commonly used technology for producing titanium slag in the world. It has particular significance to analyze the velocity–temperature–electromagnetics
viscosity of slag during smelting of vanadium-titanium magnetite in the Blast Furnace ... 617000, Sichuan, P.R. China e-mail: linyh@pzhsteel Key words: High Ti-bearing Blast Furnace Slag;
The titanium-containing phases in the slag system are: black titanium, TiO 2, Ti 2 O 3, a small amount of titanium iron oxide, TiCN, TiC and some magnesium aluminum spinel. It can be noticed that the increase in carbon content changed the slag system composition and influenced to a certain extent the thermodynamic and kinetic process of the ...
1. Introduction. High-titanium slag is a kind of granular or massive waste slag that is produced by the quenching or natural cooling of molten slag discharged from the pig iron obtained via smelting vanadium titanium magnetite [].Hydraulicity refers to the property that a material can be hardened in humid air and water to form a stable compound after being ground into a fine …
Radioactive elements associated with heavy mineral deposits may be removed from the ilmenite concentrate before smelting or, alternatively, from the high-titanium slag after smelting. The ilmenite, as mined, has a high Cr2O3 content and is not suitable for direct smelting to titania slag.
There were two controlling factors, which should be kept balance of raw input and energy during titanium slag smelting in closed high power direct current electric arc furnace, DC furnace for short. The first factor contains compositions and ratio of input raw materials. Compositions of the raw could influence the progress and technical indicators of DC furnace smelting, and on the …
The smelting reduction process of the ilmenite in an electric arc furnace (EAF) is a commonly used technology for producing titanium slag in the world. It has particular significance to analyze the velocity–temperature–electromagnetics multi-physical field in an EAF for improving its productivity and reducing energy consumption. A transient three-dimensional mathematical …
In response to the model defects that occur during viscosity prediction, this paper focuses on the high FeO-containing titanium-bearing slag produced by smelting vanadium–titanium magnetite with the HIsmelt process and employs the rotating cylinder method to measure the viscosity of the CaO–SiO 2 –Al 2 O 3 –MgO–TiO 2 –FeO slag ...
Finally, the verified smelting experiments were conducted and successful separation of the molten iron from the titanium slag is obtained. The obtained vanadium-containing molten iron contains 0.681% V and 0.267% Ti, and the obtained titanium slag contains 52.21% TiO 2 (mass fraction), in which MgTi 2 O 5 is the primary phase.
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 …
Chen, G., Qi, X.Z., Zhao, J. (2022) Report on Analysis of China Titanium Dioxide Industry's Economic Performance in 2021 and Future Development. China Coatings, 37 (04): …
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.
Fluxless smelting of ilmenite to produce furnace slag as feedstock for the pigment industry is a well-established industrial practice with extensive installed smelting capacity globally.1,2,3,4 Commercial ilmenite smelters produce two products, namely titania-rich slag and a pig iron by-product. In contrast, smelting practices for titaniferous magnetite (or …
In October 2023, China achieved successful commercialization of its inaugural 2,500 m 3 Hydrogen-enriched Carbonic Oxide Recycling Oxygenate Furnace (HyCROF), employing top gas recycling and pure oxygen smelting. Nevertheless, there has been a notable absence of studies regarding the application of OBF in the smelting of vanadium-titanium ...
Liu et al [32]. studied the smelting process of vanadium slag replacing part of V 2 O 5 smelting ferrovanadium. Aluminum powder, silicon powder, V 2 O 5, vanadium slag and lime are added to the electric arc furnace for reduction. The composition of ferrovanadium produced meets the national standard, and the recovery rate of vanadium is 97.5 %.
China' s titanium resources, the primary titanium ore cannot be directly used to produce titanium dioxide, and the method of smelting titanium slag must be used to meet the needs. Usually, the EAF is used to heat and melt ilmenite, so that the high-content enrichment of
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 metallic iron. The crystallization behaviors were …
This paper presents an overview of the titanium ore resources and the process of titanium slag smelting in Yunnan Province, examines the rationale for selecting a DC arc …