GRANULATION OF TITANIA SLAG 159 Introduction High titania slag is produced by the smelting of ilmenite and a suitable carbonaceous reductant in electric furnaces. Superfine slag cement Harsco M. Being recycled, slag is a 'Green' material. When using slag as an additive in the kiln, cement manufacturers are producing a product which has the ... Get price. Titanium slag plant technology ...
This paper deals with formation of slag in smelting process, its chemical composition, physical and st ructural characteristics, utilization and product specifiions as well as environmental aspects. The slag products are standardized and CE marked. Additionally the role of slag in smelting and alloy recovery is reviewed in this paper. 1.
· The present invention also provides a direct smelting vessel when used to smelt a metalliferous feed material that contains iron oxides and at least 3 wt. % titanium oxides via a molten bathbased direct smelting process, with the vessel containing a molten bath of metal and slag, and with the molten slag having a temperature range of ° C. and a viscosity in a range of .
amount of slag during smelting, which had a great influence on the cohesive zone in blast furnace. The XRD pattern of the sinter is shown in Fig. 1. The results indie that the main phases included hematite (Fe 2O 3), titanomagnetite (Fe 4), perovskite (CaTiO 3) and so on. Titanium may also exist in hematite named titanium hematite according to the previous ) ...
The invention relates to a method for producing titanium oxidecontaining slag and pig iron from ilmenite. The method is characterized in that it comprises the steps: a) prereducing ilmenite in the presence of reductant in a prereduction reactor to metallize at least part of iron in the ilmenite; b) optionally removing unreacted reductant and gangue from the prereduced ilmenite; and c ...
This paper provides a review of the slagbased technology with the specific aim to produce leachable slag and achieving high titania yield from recovered wastes. Leachable oxides of the lower oxidation state, such as TiO and Ti2O3, facilitate the leaching process. However, during smelting these oxides increase the viscosity of the slag. Formation of titanium carbide or carbonitride is also not ...
product titaniabearing slag (Geldenhuys et al, 2009; Steinberg et al., 2011). Titanomagnetite smelting ... however, there are indiions that the fluxless smelting process would be restricted by the formation of reduced titanium species,, Ti(O,C), when the TiO 2 content in the slag reaches 70 to 75% (Nell and McCullough, 2001). 424 Both the fluxed and fluxless titanomagnetite slags have ...
· The structural and transport properties of molten titanium slag have intuitive and important effects on the reaction efficiency of the smelting process, separation efficiency of slag and metal ...
Without flux, the pseudobrookite phase with a high melting temperature was precipitated during ilmenite smelting. This could be the main reason for decreased reduction of iron in ilmenite. To accelerate . Improving the production efficiency of hightitania slag in Ti extraction process: fluxing effect on formation of pseudobrookite Sci Rep. 2020 Apr 16;10(1):6530. doi: /s ...
slags represent the most interesting source of information with which to work. Slag description As noted above, most researchers working on ancient metallurgies have agreed to refer broadly to all waste produced during copper pyrometallurgical processes, including smelting operations, as 'copper slag' (Hauptmann, 2014). Bachmann ...
titanium processing titanium processing Extraction and refining: The production of titanium metal accounts for only 5 percent of annual titanium mineral consumption; the rest goes to the titanium pigment industry. Pigments are produced using either a sulfate process or a more environmentally acceptable carbochlorination process (described below) that converts TiO2 into TiCl4.
Ilmenite smelting is a reduction process in which the FeO in ilmenite is reduced to Fe, giving a titaniumrich slag on top of pure pig iron [1]. Slags analysis is of great importance in ilmenite ...
Slag formation path in converter smelting process of semisteel containing chromium Jiang Diao College of Materials Science and Engineering, Chongqing University, Chongqing, People's Republic of China ; Chongqing Key Laboratory of Vanadium–Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing, People's Republic of China Correspondence diaojiang
Hightitanium slag can be produced by smelting ilmenite concentrate together with a carbonaceous reductant such as anthracite in an electric arc furnace (EAF). The EAF process produces a hightitanium slag and pig iron. The slag is corrosive to refractory materials, and hence ilmenite smelters operate with a freeze lining of solidified slag [5]. Because of the importance of the freeze lining ...
The effects of highbasicity pellet on smelting chromiumbearing vanadiatitania magnetite are investigated via thermodynamic smelting and nonisothermal kinetics experiments. The thermodynamic results indied that the highbasicity pellet significantly affects and ameliorates the softeningmeltingdripping behaviors during the smelting process. As the highbasicity pellet ratio increased ...
The smelting of ilmenite to produce valuable titania slag and pig iron is an energyintensive process. At process temperatures of about 1700°C, roughly 1 MWh of electricity per ton of ilmenite feed is consumed. Following successful laboratoryscale test work, a pilotscale operation was undertaken to demonstrate prereduction and subsequent smelting of carbonbased ilmenite pellets. Five ...
Titanum smelting process flow chart Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any sizereduction requirements including, Titanum smelting process flow chart, quarry, aggregate, and different kinds of minerals.
mitigate the risk of excessive titanium reduction. Typical metal and slag compositions are shown in Table II. The slag is crushed, and entrained metal particles are magnetically removed and recycled through the process. The metal, with a vanadium content of approximately %, is transported to the steel plant for further processing. Vanadium is transferred from the liquid metal to slag using ...
A process is provided for the production of titania rich slag from ilmenite. The ilmenite is fed together with carbonaceous reductant, and in the absence of fluxes, to the molten bath of a arc furnace. The molten bath of the furnace forms the anode and one or more electrodes in the roof of the furnace forms the hode. A frozen lining is established and maintained between the refractory ...
in a high titania slag containing 75–95% TiO2, of which slags with titania content above 85% are used for the chloride route and others for the sulfate route [12]. The reductant used is a carbonaceous material, such as anthracite, petroleum coke, metallurgical coke, etc. [13]. The smelting process of ilmenite is an unusual case where slag is ...
Titania is recoverable from ilmenite slags containing a primary pseudobrookite phase through various process routes, including the Upgraded Slag (UGS) process (van Dyk, 1999). A study by Zhang et al. (2007) revealed the feasibility of recovering titania from titanomagnetite slags that contain perovskite,
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