1. introduction. the vanadiumbearing titanomagnetite vbtm ore deposit in the panzhihuaxichang region, china, is a complex ore that contains many valuable elements, including titanium ti, vanadium v, iron fe, chromium cr, scandium sc, and gallium ga, and has high utilization value 1,2,3.vanadium titanomagnetite concentrates vtmcs and.
Iron was effectively eliminated using 3M ammoniacal solution at pH 3.5. The stripped titanium solution was recovered from TBP-organic phase by 0.1M HCl solution. A practicable...
High-chromium vanadium–titanium magnetite (HCVTM) is a valuable resource containing metal elements such as iron, vanadium, titanium, and chromium. To recycle these elements, direct reduction is an… Expand High-Efficiency Extraction of Fe, V, and Ti from Vanadium Titano-Magnetite Concentrate Based on Activated Reduction
The ore which contains 575 Fe 066 V and 166 TiO 2 was subjected to selective reduction smelting so that most of the iron reported to the metal phase and the vanadium and titanium to the slag phase The iron had a purity of 99 The slag contained between 9–35 FeO 31–46 TiO 2 and 12–16 V Over 98 of the titanium and vanadium reported to the ...
A mineralogical study of raw sample indicated that it was a typical low-grade vanadium-titanium magnetite ore with weathering. Most of vanadium-titanium magnetite was replaced by martite...
Recoveries of up to 80.08% for titanium, 95.07% for iron, and 71.60% for vanadium were achieved. The reduction sequence is shown to be: Fe2O3 → Fe3O 4 → FeO → Fe; Fe2TiO5 → Fe 2TiO4 → TiO2 →...
Moreover, the recoveries of iron, vanadium, and titanium are 77%, 53%, and 0%, which are not substan- tially higher than the recoveries achieved by the blast-furnace process. The third method is the direct reduction–magnetic sepa- ration process proposed by …
A green and efficient route for simultaneous recovery of low valence of vanadium and chromium, titanium and iron from vanadium slag. Resour. Conserv. Recycl., 178 (2022), Article 106046, …
The increase in roasting temperature favors the reduction of iron oxides but disfavors the oxidation of vanadium oxides. The recoveries of vanadium, iron, and titanium reached 84.52%,...
Since vanadium exists in ilmenite (see Fig. 1 and Table 2), the rapid increase of titanium grade and recovery rate (i.e., high phase content of ilmenite) at a high magnetic …
The total recoveries of iron, vanadium, and titanium were 93.67%, 72.68%, and 99.72%, respectively. : recovery ; vanadium ; titanomagnetite ; direct reduction ; sodium …
1. introduction. the vanadiumbearing titanomagnetite vbtm ore deposit in the panzhihuaxichang region, china, is a complex ore that contains many valuable elements, …
To enhance the concentration of vanadium that can be extracted into leaching solutions, a fairly general procedure is to employ salt roasting–acid leaching. This method can be used to recover vanadium from some specific ore materials and all kinds of vanadium sources, e.g., high lime slags.
Recoveries of up to 80.08% for titanium, 95.07% for iron, and 71.60% for vanadium were achieved. The reduction sequence is shown to be: Fe2O3 → Fe3O 4 → FeO → Fe; …
DOI: 10.1016/j.jhazmat.2012.10.052 Corpus ID: 21512450; A novel process for recovery of iron, titanium, and vanadium from titanomagnetite concentrates: NaOH molten salt roasting and water leaching processes.
A green and efficient route for simultaneous recovery of low valence of vanadium and chromium, titanium and iron from vanadium slag. Resour. Conserv. Recycl., 178 (2022), Article 106046, 10.1016/j.rnrec.2021.106046. Article. Download PDF View Record in …
Maximum recovery and transformation: Combination of metallurgical and chemical processes suitable for recovering iron and vanadium for preparing a vanadium electrolyte (VE) directly from vanadiferous titanomagnetites. …
Under the optimal conditions, 93.67% iron from the raw ore was recovered in the form of iron nugget with 95.44% iron grade. After a water leaching process, 85.61% of the vanadium from the roasting slag was leached, confirming the sodium oxidation of most of the vanadium oxides to water-soluble sodium vanadate during the roasting process.
The total recoveries of iron, vanadium, and titanium were 93.67%, 72.68%, and 99.72%, respectively. : recovery ; vanadium ; titanomagnetite ; direct reduction ; sodium oxidation ;...
The increase in roasting temperature favors the reduction of iron oxides but disfavors the oxidation of vanadium oxides. The recoveries of vanadium, iron, and titanium reached 84.52%, 89.37%, and 95.59%, respectively. Moreover, the acid decomposition efficiency of titanium slag reached 96.45%.
A method for recovery of iron titanium and vanadium fr. Under the optimal conditions 93 67% iron from the raw ore was recovered in the form of iron nugget with 95 44% iron grade After a water leaching process 85 61% of the vanadiuAustralian Vanadium reports higher vanadium and iron grades in test-work The company is undertaking beneficiation test-work aimed at boosting the …
US3733193A Recovery Of Vanadium From Titaniferous Iron. A process for salt roasting a vanadiumcontaining titaniferous iron ore having at least a few percent of a silicious material calculated as sio2 comprising the addition of an aluminum bearing material to the ore prior to roasting in an amount ranging between about 2 and about 15 based on the weight of …
The optimum roasting time was two hours yielding a vanadium recovery of 89.1%. Roasting times of one and three hours resulted in lower vanadium recoveries of 67 and 82% …
Geoscience Iron Ore Gangue mineralogy and deportment of titanium (Ti) and vanadium (V) in the Kiirunavaara iron ore deposit, Northern Sweden September 2014 Conference: 92nd Annual Meeting...
As shown in Figure 4, all of the process indexes, including titanium content (ω(TiO 2)), recovery ratio of titanium (η(TiO 2)) in the non-magnetic fraction, recovery ratio of vanadium (η(V 2 O 5)), iron content (ω(TFe)), and recovery …
Experimental Research on Comprehensive Recovery of Iron, - Know More. An experimental research on comprehensive recovery of iron and associated apatite from a low grade vanadiferous titanomagnetite ore with high phosphorus was carried out The results showed that using the technological flowsheet of low -intensity magnetic separation-flotation, not only the …
After a water leaching process, 85.61% of the vanadium from the roasting slag was leached, confirming the sodium oxidation of most of the vanadium oxides to water-soluble …
When the mass ratio of (NH 4) 2 SO 4 to ore reached 4:1, the leaching rates of vanadium, titanium, and iron were 94.97%, 10.24%, and 79.39%, respectively, demonstrating that the sulfate of vanadium and iron dissolved in the leaching solution, but most of the formed …
The total recoveries of iron, vanadium, and titanium were 93.67%, 72.68%, and 99.72%, respectively. ... 93.67% iron from the raw ore was recovered in the form of iron nugget with 95.44% iron grade. After a water leaching process, 85.61% of the vanadium from the roasting slag was leached, confirming the sodium oxidation of most of the vanadium ...
The invention discloses a comprehensive recovery process for vanadium titanium iron ore concentrate directly processed by sodium treatment and belongs to the technical field of metallurgical resource comprehensive utilization. Vanadium titanium magnetite concentrate, a carbonaceous reducing agent and NaOH flux are mixed to prepare carbon-containing pellets, …