Study on chlorination of ilmenite ore were carried out by using PVC(polyvinyl chloride) as the chlorinating agent in a static bed reactor for selective removal of iron. The effect of amount of PVC ...

In order to produce high-grade titanium dioxide (95% TiO2) directly from a titanium ore using titanium scrap and iron chloride waste, chlorine recovery and selective chlorination processes were investigated. The mixture of titanium scrap and ferrous chloride in carbon crucible and titanium ore in quartz crucible were placed inside gas …

Study on chlorination of ilmenite ore were carried out by using PVC(polyvinyl chloride) as the chlorinating agent in a static bed reactor for selective removal of iron. The effect of amount of PVC and reaction temperature were investigated. It was found that the removal ratio of iron increased with amount of PVC and temperature. …

Firstly, iron ore was mined and then processed to obtain iron concentrate and high-silica IOTs by the process of crush–grind–screening–gravity separation–magnetic separation [72]. The obtained high‑silicon IOTs contained abundant quartz with a small amount of Fe compounds. To achieve the classification recovery of valuable components ...

The kinetics and mechanism of selective iron chlorination of an ilmenite ore. Mineral Processing and Extractive Metallurgy 2007, 116 (4), 230-238. …

Therefore, a suitable technology is needed to extract the tin from the primary ore deposits. This research aims to observe the extraction of tin from primary deposits (oxide and skarn ores) using HCl wet chlorination, observed at different temperature (60 – 90°C), HCl concentrations (10 – 50 % excess of stoichiometric amount), leaching ...

Kinetic Study of Selective Chlorination of Iron in Ilmenite Ore. So-Yeong Lee1, Sung-Hun Park1, Ho-Sang Sohn1 School of materials science and engineering, Kyungpook …

A low-temperature chlorination roasting-water leaching process was proposed. • Anhydrous aluminum performs good selectivity. • O 2 and the generated Cl 2 play vital roles in the chlorination of sulfides.. Iron in the ore promotes the chlorination of nickel and copper significantly.

Abstract. A selective chlorination process using magnesium chloride (MgCl2) as chlorinating agent was investigated with the aim of developing a process for removing iron directly from ilmenite ...

Ilmenite(FeTiO 3) ore is a raw material for producing TiCl 4 through the chlorination method and the sulfuric acid reaction method. TiCl 4 is used as a raw material for producing metallic titanium ...

The preferential chlorination reaction of iron constituents in roasted ilmenite ore was studied in an experimental fluidized bed reactor. The influence of the roasting temperature on the selectivity of chlorination reactions was also examined. It was found that preferential iron chlorination is dependent on roasted product morphology. …

The selective chlorination of iron from llmenite ore by CO-Cl2 mixtures: Part II. mathematical modeling of the fluidized-bed process. Metallurgical Transactions B 1990, 21 (2), 331-340.

The manganiferous iron ore consisted mainly of hematite, magnetite, goethite, and quartz with minor quantities of stilpnomelane, minnesotaite, and chlorite. The manganese minerals identified were manganite and a minor quantity of pyrolusite. The ore was ground in a pulverizer to minus 100 mesh prior to chlorination.

The experimental results showed that the iron content decreased to 0.43% at 1223 K and P ∼1 Pa for 60 min, and the Fe content was reduced to 0.082% after acid washing, with a removal rate of 94.2%. which offers a novel way to replace the conventional method for elimination of iron sulfide in molybdenum ore. Possible separation …

This research aims to observe the extraction of tin from primary deposits (oxide and skarn ores) using HCl wet chlorination, observed at different temperature (60 – 90°C), HCl concentrations ...

The preparation of pellets for blast furnace from the complex iron ores containing tin and zinc (w(Sn)=0.25%, w(Zn)=0.20%) were studied. Based on the analysis of volatilization behavior of tin and ...

nickel, copper, and iron were studied, and the results show that,when the roasting temperature is 850 C, the roasting time is 1.5 h, the mass ratio of magnesium chloride hexahydrate to sodium chloride is 5:2, the mass ratio of ore to chlorination agent is 1:0.6, and the ore particle size is 180–200 mesh, the

A selective chlorination process using magnesium chloride (MgCl2) as chlorinating agent was investigated with the aim of developing a process for removing iron directly from ilmenite, which is a low-grade titanium ore known as FeTiO3. Two crucibles, one consisting of titanium ore and the other consisting of a mixture of titanium ore and …

A Panoramic Overview of Chlorination and Carbochlorination of Light Rare Earth Oxides, Including Thermodynamic, Reaction Mechanism, and Kinetic Aspects. Chlorination and carbochlorination processes have industrial applications in metallurgical activity for extraction and purification of uncommon metals such as rare earth elements …

Metallurgical processing of low-grade manganese ore with high iron content is gaining increasing attention due to the gradual depletion of high-grade Mn ores, amid the …

Chlorination is a very effective metallurgical method to treat various kinds of complex LREE ore resources. The most studied ores were bastnaesite and …

Kinetic Study of Selective Chlorination of Iron in Ilmenite Ore. So-Yeong Lee, Sung-Hun Park and Ho-Sang Sohn. School of materials science and engineering, …

conditions for the chlorination experiments were optimized. The iron in the titanium ore was selectively chlorinated by reacting low-grade titanium ore (ilmenite) and metal chloride (MClx, M = Mg, Ca, etc.) at 1100 K under a nitrogen atmosphere, and low-iron titanium ore and iron chloride (FeClx) were obtained.

A new extraction technology of chlorination roasting with a mixture of MgCl 2 ·6H 2 O and NaCl was investigated to co-extract nickel and copper from low-grade nickel ores. The effects of some key factors on the extraction of nickel, copper, and iron were studied, and the results show that,when the roasting temperature is 850°C, the roasting …

To develop a selective chlorination process for ilmenite ores with the aim of attaining a high chlorination ratio of Fe and minimal Ti loss with low activation energy, the kinetics of the selective chlorination of Fe from ilmenite ore powders using a mixture of CO and Cl 2 gases in a static bed reactor was investigated. Experiments were conducted using …

In this study, the FeO with selective chlorination by using coke and Cl 2 gas of ilmenite ore was eliminated, and TiO 2 of high purity produced. The reaction …

The resource utilization of cyanide tailings has significant environmental and economic benefits. The efficient recovery of gold from low-grade cyanide tailings containing 1.71 g/t Au was performed by a chlorination roasting–flotation process. The effects of roasting temperature, calcium chloride, internal coke, external coke, copper sulfide …

Kang and Okabe [87] investigated a selective chlorination process using calcium chloride (CaCl 2 ) as the chlorine source. Iron in the titanium ore was selectively removed in the form of iron ...

After grinding the chlorination residue to < 0.074 mm particle sizes, 85.34% vanadium was recovered by water leaching extraction at 80 ℃, 10:1 liquid–solid ratio, 500 r/min stirring speed, and 4 h extraction time. The present approach may efficiently volatilize gold, zinc, recover vanadium, and separate iron from carbonaceous gold ore.

It was shown that the selective chlorination of iron from titanium ore by HCl gas is thermodynamically feasible and efficient for upgrading titanium ore. Further, thermodynamic analysis showed that under certain conditions, TiCl 4 can be used as a chlorinating agent for the iron in the ore, and iron can be removed by evaporation …

Key words: refractory carbonaceous gold ore; chlorination roasting; thermodynamic calculation; gold; zinc 1 Introduction With progressive exhaustion of non-refractory gold ores, refractory gold ores have become main materials for the production of gold, and nearly one third of gold in the world comes from refractory gold ores [1âˆ'4].

With the addition of 18 wt% graphite as the carbonaceous reductant, 20 wt% CaCl 2 and 40 wt% MgCl 2 as the chlorination agent, simultaneous selective chlorination and carbothermic reduction of high-iron manganese ore can be achieved after reduction at 1000 °C for 1 h. As much as 89.4% of Mn can be recovered by water-leaching the product, …

The intrinsic kinetics of the selective chlorination of iron from ilmenite ore using carbon monoxide as the reducing agent were studied in a shallow fluidized bed. Experiments on the effects of ...