0086-21-58386256
1. Introduction. Vanadium titano-magnetite is a major source of iron, vanadium, and titanium resources, with about 18 billion tonnes of reserves in China [[1], [2], [3]].Currently, there are various processes for the comprehensive utilization of vanadium titano-magnetite [4, 5].However, it is difficult to achieve efficient recovery of vanadium …
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 …
This work reported a rapid preparation route of carbonized high titanium slag (CHTS) based geopolymer with better mechanical properties by employing different curing techniques. The combination pre-curing treatment (first thermal heating at 60℃ for 6 h and then microwave radiation at 210 W for 15 min) was confirmed as an effective …
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 …
Potentially More Ecofriendly Chemical Pathway for Production of High-Purity TiO 2 from Titanium Slag. Xiaofang Zhu. Xiaofang Zhu. Key Laboratory of Green Process and Engineering, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, No. 1, Bei …
The fusing temperature of high titanium slag was 1626.17∼1691.24 °C. After the high titanium slag was completely melted, the viscosity of high titanium slag was 86∼127 mPa · s. When the temperature was lower than the fusing temperature, the high titanium slag precipitated into solid-phase particles.
The slag-steel reaction generally makes the continuous casting of high Titanium steel difficult, which results in a decrease of the SiO 2 content from the mold flux and an increase in the content of TiO 2. This results in changes in the physicochemical properties of the resulting material, such as an increase in the viscosity and melting ...
2.1 Materials. High titanium slag through crushing and ball milling was dried and then applied to the experiment. The detailed chemical composition of the high titanium slag was examined by inductively coupled plasma atomic emission spectrometry (ICP-AES) and the results are listed in Table 1.The main component of the titanium …
A large amount of titanium furnace slag is generated, including high titanium heavy slag (HTHS) with a content of TiO 2 greater than 20% (Kotze, 2020; Qiu …
The high titanium slag was milled and sieved to 57 3 μm . particle size and stored for experiments. The sample was . placed in the microwave hi gh temperature reactor, and .
High titanium heavy slag is one kind of solid waste that exists in large amounts in the southwest of China. In this paper, this high titanium heavy slag is used as natural pre-wetted material in concrete …
In the 1990s and early 2000s, we focused on developing, marketing, and fine-tuning the UGS process, which produces slag with a very high titanium dioxide content. By developing UGS™, an enriched titanium …
Finally, TEM analysis shows that the addition of a small amount of Na 2 O flux promotes reduction of Fe constituting the ps-BR …
A large amount of titanium furnace slag is generated, including high titanium heavy slag (HTHS) with a content of TiO 2 greater than 20% (Kotze, 2020; Qiu and Guo, 2022; Koenig and Verryn, 2021).Although the titanium content of HTHS is very high, it is difficult to extract titanium from the slag due to its low titanium grade, …
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 …
High titanium slag (HTS) is a famous byproduct for its high content of TiO 2 (15 % ∼ 27 %) generated from the production of pig iron by smelting vanadium titano-magnetite [12]. Approximately 80 million tons of HTS have been produced in the Panzhihua Iron and Steel Plant (China) during the past several decades. The mature technology of …
High titanium slag and KOH solution were used to synthesize potassium titanate whiskers. The acid conversion of potassium titanate whiskers in hydrochloric acid solution can directly prepare titanium dioxide. When the conversion temperature was 130 °C, the influence of hydrochloric acid concentration on the acid conversion of potassium …
For smelting of titanium rich slag, the low-ash reducing agents were used, i.e., some oxides (SiO 2, Al 2 O 3, CaО and MgO) convert into the slag and impoverish target product - slag.The low electrical conductivity and ash content of the reducing agent ensures a high electrical resistance of the charge, a deep fit of electrodes, a stable …
In this work, a novel multifunctional light-weight high titanium slag (HTS)-based geopolymer was fabricated. The physical properties such as compressive strength, thermal conductivity, electrical conductivity, and electromagnetic wave absorption characteristics of HTS-based geopolymer composites with different matrix …
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 …
In order to study the effect of the change of MgO/Al2O3 on the viscosity and thermodynamic properties of the chlorinated blast-furnace slag, the CaO-SiO2-MgO-Al2O3-TiO2-CaCl2 slag system was taken as the research object, and the viscosity change rule of the chlorinated high-titanium slag was studied by using the rotating cylinder method. …
To explain the relationship between the hydration activity of high-titanium slag and its microstructure, the hydration activity of high-titanium slag was determined, then the mineral phase and microstructure characteristics of high-titanium slag glass phase and blast furnace slag were investigated using a series of analytical methods, …
Titanium metal was successfully prepared from high-titanium slag via an electro-deoxidation process in molten CaCl 2 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 temperature, …
furnace slag, so the hydraulic activity of high-titanium slag is far lower than that of blast furnace slag. Comparing the two kinds of high-titanium slag, the index of hydraulic activity for 7 d and 28 d of water-quenched high-titanium slag is 1.7 and 1.5 times that of slow-cooled high-titanium slag, respectively.
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 …
In this study, the final product and the high titanium slag were characterized by scanning electron microscopy technique, and the results are shown in Fig. 3.In Fig. 3 …
in high-titanium slag and iron concentrate after wet-magnetic separation, respectively; m0 TiO 2 and m0 Fe are the TiO 2 and the iron content in sample before wet-magnetic separation. The high-titanium slag and the iron concentrate were obtained after wet-magnetic separation, so the yield of high-titanium slag and iron concentrate were …
Titanium dioxide slags are produced by reduction smelting of ilmenite in electric arc furnaces. The slag grade (sulfate or chloride) depends essentially on the quality of the ore or concentrate fed to the slag furnaces. Upgraded slag or UGS is produced by high-pressure acid leaching of sulfate slag.
Titanium slag is a high TiO 2 bearing material produced by. smelting titanium concentrate. Different from the steelmaking. and ferroalloy pro duction, titanium slag smeltin g techn ology.
1. Introduction. Panzhihua vanadium‑titano-magnetite ore is the greatest titanium mineral resources in China [1].The ilmenite concentrate is smelted using an electric arc furnace to produce the HTS, and over 5 million tons of titanium-bearing slag are outputted per year [2], [3].However, the effective interest rate of HTS is below 3%, …
Fig. 10 EDAX patterns of high-titanium slag (a) and residue (b) The reaction of roasting high-titanium slag with concentrated sulfuric acid is a liquidâˆ'solid reaction, which can be analyzed with the shrinking-core model under the assumption that the titanium slag is homogeneously spherical solid phase. The reaction is carried out in the ...
This paper proposes a new technique for preparation of high-grade titanium slag from Panzhihua vanadium titanomagnetite concentrate by reduction–melting–magnetic separation processing. Chemical analysis, x-ray diffraction, and scanning electron microscopy in conjunction with energy-dispersive spectroscopy …
In this paper, the influence of basicity (CaO/SiO 2 ) on the viscosity and crystallization characteristics of chromium-containing high-titanium slag was studied. The melting temperature and viscosity were measured by employing the hemisphere and rotating cylinder methods, and the composition and morphology of the crystallized phase …
The viscosity of high-titanium blast furnace slag with different TiO2 content, Al2O3 content, and basicity was measured at 1653–1773 K using the rotational cylinder method. The phase composition of the slag is measured by XRD. Phase diagram of the slags is calculated by FactSage software. Ionic network structure of the slags is …
Slag basicity (mass ratio of CaO to SiO 2) is an important index to ensure smooth operation and efficient separation between the metal and slag within the metallurgical industry.Effects of basicity of the high titanium slag on the recovery of iron and vanadium, the separation behaviors between iron and slag, as well as the slag …
KNaTiO 3 is a novel type of solid CO 2 sorbents with strong sorption capacity and excellent regenerability at high temperatures. However, the expensive titanium precursor hampers its implementation for industrial applications. Herein, advanced KNaTiO 3 based CO 2 sorbents were first fabricated directly from high titanate slag (HTS). …
in high-titanium slag and iron concentrate after wet-magnetic separation, respectively; m0 TiO 2 and m0 Fe are the TiO 2 and the iron content in sample before wet-magnetic …
high-titanium slag, the hydration inert mineral content was about 98%, and the glass phase content was less than 2%, hence, the hydration activity of slow-cooled high titanium slag accounted for
The glass phase of high-titanium slag has stable forms, which are TiO44− monomers, chain or sheet units O–Ti–O, and a small amount of 6-coordination Ti4+. The Ti makes the SiO4 tetrahedron ...
A H 2-CH 4 mixed gas based reduction has already been used for the preparation of titanium oxides from ilmenite, rutile, and perovskite, 97,98 as well as high …