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Jun 01, 2020· In the DREF smelting process, vanadium oxides and iron oxides are reduced to molten iron, while titanium oxides are enriched in slag. Vanadiumbearing molten iron is oxidized to produce semisteel and vanadium slag; then vanadium is extracted from the vanadium slag by hydrometallurgy methods [1âˆ''4,11,12].
May 14, 2019· In the industrial production of titainum and titanium alloys, the most commonly used techniques are vacuum arc remelting (VAR) and cold hearth melting. Vacuum Arc Remelting VAR technology can refine the ingot structure in titanium alloy smelting and improve the purity of the product. The main developments of this technology in recent years are as follows: Fullyautomatic VAR re .
Apr 16, 2020· The other is increasing the activity of FeO in slag as a driving force in the smelting reduction process. Furthermore, the higher the activity of FeO, the lower the viscosity of slag .
Titanium alloy smelting methods are generally divided into: 1. ... American Ferrosilicon Company developed the slagfree induction melting process and pushed the CCM method to industrial production applications for the production of titanium ingots and precision castings of titanium. ... The smelting process of the CCM method is carried out in ...
Vanadium–titanium magnetite (VTM) is an important strategic resource, and now the process of Blast Furnace (BF) is the dominate route for smelting VTM. However, the difficulties of smelting VTM by BF inhibited further increase of VTM proportion in furnace burden due to .
A suitable slag composition was found to satisfy the smelting process in a blast furnace with superhigh TiO2 content at low temperature by using more MgO and less CaO content. View Show abstract
Ilmenite can be converted into pigment grade titanium dioxide via either the sulfate process or the chloride process. Ilmenite can also be improved and purified to rutile using the Becher process. Ilmenite ores can also be converted to liquid iron and a titaniumrich slag using a smelting process.
process, is therefore one of the primary objectives of ilmenite smelting. Slag and iron are tapped periodically from separate sets of tapholes located around the circumference of the furnace. The slag tapholes are on a higher elevation than those for iron. Slag is tapped into 20 t steel pots, and cooled for
This paper introduces the characteristics of titanium mineral resources in Yunnan Province and the production situation of titaniumslag smelting, The article puts forward the necessity of constructing a project of producing 80,000t/a of hightitanium. The process is advanced production technology of a company in South Africa, the process has a large capacity, gas utilization, energy, and low ...
TiO2 Slag Ilmenite smelting is a carbothermic process to upgrade the mineral ilmenite, yielding TiO2rich slag (which is mainly used as a feed stock for TiO 2 pigment production) as primary pr oduct and pig iron as a byproduct. This smelting process is unusual in having slag as its primary product and metal as a byproduct. Another
(Nayl et al., 2009). In spite of high power consumption, smelting of ilmenite or titaniumbearing ore has several advantages over the synthetic rutile route by chemical process. The major advantages of the slag technology are: high titanium content, low waste generation, being suitable for sulphate and chloride processes, low chemicals
melting process. The slag evolution in the cohesive zone was also discussed by combining the microstructure, phase composition as well as the phase diagram analysis. 2. Experimental Materials The high Titanium sinter and coke used in this study were .
smelting of hemoilmenite ore with anthracite coal. Titania slag represents an important feedstock for the manufacture of titanium dioxide pigment by the sulphate process. Moreover, part of the production of the titaniarich slag is further acidleached under a highpressure and moderatetemperature hydrometallurgical process to
Titanium dioxide slag is the principal product, with pig iron being a coproduct. Titanium dioxide slag is largely used as a raw material for producing white pigment, mostly for the paint and plastics industries. Richards Bay Minerals Process Flow. Basic reactions in ilmenite smelting are: Reduction of FeO from slag. FeO + C → Fe + CO
In this paper, two processes for VTi magnetite smelting were introduced, the processes respectively are the conventional blast furnaceBOF process and the highprofile rotary hearth furnace direct reduction technology. The two kinds of processes were introduced briefly, and the problems of the two processes in the production of VTi magnetite were analysed.
by smelting concentrates (after they have been lumped) in the blast furnace, with the subsequent recovery of vanadium from the pig iron and titanium from the slag; by means of the pyrohydrometallurgical processing of the titaniummagnetite concentrate, as a result of which vanadium is obtained by precipitating its compounds
May 14, 2020· TiZir''s TTI facility, located in Tyssedal, Norway, upgrades ilmenite to produce highgrade titanium slag and highpurity pig iron with an annual capacity of .
Smeting Process. Our special smelting process extracts three value products from the ore, namely, High Purity Iron, Vanadium Slag and Titanium Slag. It is mainly a threestage reductionconvertingatomizing process.
The smelting process comprises the carbonaceous reduction of ilmenite to produce titania slag with a TiO2 content of 86%, and iron with a carbon content of %. In the Ti slag production process, the iron oxides are reduced to metallic iron, thereby producing a TiO2rich slag and high purity iron.
Ilmenite smelting: the basics T SAIMM. In ilmenite smelting, the iron content of the oxide is also lowered by reduction to metallic iron, but this takes place in the liquid state, at a much higher temperature (of around 1650°C) Ilmenite smelting thus yields two products: a titaniarich slag, and molten iron This is in contrast with the Becher process.
Basic procedure of ilmenite smelting and rational Ti slag grade in pyrometallurgical process have been summarized and analyzed. The rational Ti slag grade is related to reduction degree, FeO ...
Feb 01, 2006· The analysis of typical slag obtained by Electro Slag Crucible Melting process and other slag compositions reported by other investigators (Sahoo et al., 1999, Swinden and Jones, 1978) are given in Table 3. The chemical analysis suggests that the prepared slag would be suitable for the sulphate process of titanium dioxide pigment manufacture.
The HIsmelt smelting reduction process is an effective method to smelt vanadium–titanium magnetite. In the present study, the phase composition of the hightitanium slag produced under different temperature and composition conditions under the HIsmelt smelting reduction process was first analyzed via thermodynamic calculations.
TNTI has achieved widerange automatic process control in these two titanium smelting methods, including process parameters (speed of melting, temperature distribution during melting and solidification process, changes of components in smelting, the degree of the removal of .
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