Desulphurization Of An Iron Concentrate

Desulfurization of Iron Ores: Processes and Challenges

The achievement of higher sulfur removal rates has been an important goal since the development of sulfur removal techniques. In this research, an effort is made to separately introduce the various processes, industrial practices, and fundamental research activities to …

Desulfurization of Iron Ores: Processes and Challenges

An investigation of surface oxidation of pyrite and pyrrhotite …

The impact of sulfuric acid pretreatment on the surface property of oxidized pyrrhotite (OX-pyrrhotite) and its application in flotation desulphurization of magnetite concentrate were investigated in this study. OX-pyrrhotite using sodium butyl xanthate (BX) collector performed a poor floatability.

Research Progress in Desulphurization and Defluorination …

Magnetite concentrate is one of the raw materials of iron and steel industry. The removal of harmful impurities sulfur and fluorine is a technical problem faced by mineral processing industry for a long time. This paper summarizes the desulphurization and defluorination technology of high sulfur fluorine magnetite concentrate, especially the application of flotation method in the ...

Sulfur content reduction of iron concentrate by reverse …

ABSTRACT In this study, the desulphurization of iron ore concentrate using reverse flotation was investigated. In this paper first, behavior of the flotation of both pure – pyrite and iron oxides-pyrite with xanthate has been examined based on micro-flotation results and zeta-potential measurements. Then, an effort has been made to investigate the effect of pH, chemical …

Reagents types in flotation of iron oxide minerals: A review

ABSTRACT Recently, beneficiation of iron from low-grade ores with high impurities has been a matter of discussion. Flotation is one of the most effective technologies for the upgrading of low-grade, finely grained iron ores. This method can also be applied to reduce the impurities content in magnetite concentrates obtained using wet low- and high-intensity …

Sulfur content reduction of iron concentrate by reverse …

In this study, the desulphurization of iron ore concentrate using reverse flotation was investigated. In this paper first, behavior of the flotation of both pure – pyrite and iron …

desulphurization of an iron concentrate

The Research on Desulphurization of an Iron . Iron ore concentrate sales in a mineral processing plant appeared a trend of high sulfur, exceeding the sales requirement of 03% significantly To this end, for the sulfide in iron concentrate mainly exists in the form of pyrrhotite, companies with iron minerals and has a high degree of oxidation, we can add flotation agent …

Effect of complexing agents in the desulphurization of …

Oxalic acid is a reducer and also a complexing agent that has been used in the iron oxide leaching during the treatment of silica and clay mineral (Panias et al., 1996); citric acid has been added in the leaching of lead metallurgical slag (Ettler et al., 2004); and phosphoric acid has been applied in the leaching of sheelite concentrate ...

Agglomeration and Characterization of Nickel Concentrate …

Ratchev et al. proposed a melting method for nickel and iron hydroxide concentrate, which had a slag chemical control to increase nickel recovery and to eliminate contaminants. Therefore, this paper consists of the elaboration and characterization of nickel concentrate (MHP) agglomerates, which were produced by nickel lateritic ores ...

Central composite design for.optimization and.formulation …

Central composite design for.optimization and.formulation of.desulphurization of.iron ore concentrate using atmospheric leaching process: Ali Mostafavi 1 Hassan Rezvanipour 1,2 Dariush Afzali 3 Tayebeh .Shamspur 1 Amir Hajizadehomran 2: 1 Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 84156-83111, Iran

Model for Predictive Analysis of the Concentration of …

(μ) = 2.1739 (Oxidation coefficient of KClO3 relative to the treatment temperature (6000C)) determined in the experiment [9] (α) = Weight of iron oxide ore added (g) T = Treatment temperature used for the process (0C) (γ) = Weight of KClO3 added (g) De = 0.0415 (Assumed Desulphurization Enhancement Factor) Table 1: Variation of concentration ...

m/sbm kolkata desulphurization of an iron concentrate.md …

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CN110293000A

The invention discloses a kind of sulfur method of iron ore concentrate and desulphurization systems, desulphurization system includes desulfurization section and flotation section, the desulfurization section includes the first agitator and the second agitator, and the flotation section includes flotation device, and first agitator, the second agitator and flotation device are …

Central composite design for optimization and …

The designed process under the optimized desulphurization conditions was applied to a real iron ore concentrate. More than 75% of the total sulphur was removed via the leaching process.

Desulphurization of Steel : Fundamentals & Practices

Sulphur is 100 percent soluble in liquid iron but sparingly soluble in solid iron -0.002% in alpha ferrite and 0.013% in gamma ferrite at 1000 deg C. So during solidification, the solubility of S drops down and is liberated forming a eutectic of FeS around grain boundary and interdendritic spacings. ... Desulphurization using basic slag can be ...

DRY MAGNETIC SEPARATION OF MAGNETITE ORES

It is established that the researched ore can be efficiently processed using a complex gravityflotation-magnetic technology, which allows to obtain: gravity gold-containing concentrate with a mass fraction of gold of 50 g/t at recovery of 27%; copper concentrate with a mass fraction of 23.71%, gold – 18.9 g/t and silver – 60.0 g/t when ...

(PDF) Desulfurization of hematitic concentrate of iron

The iron ore sample was collected from magnetic separators concentrate stream of Gole Gohar iron ore complex with d80 equal to 90µm. Sulfur and total Fe contents of the sample were found to be 0. ...

The effect of column flotation operational variables on

column performance in desulphurization process from iron concentrate and to optimize operational conditions for the sake of achieving the maximum sulfur recovery with the minimum iron waste.

Sulphur removal of iron ore tailings by flotation: Journal …

With these optimum parameters, final concentrate with the grade of 63.7% Fe and 0.085% S was obtained. The results of this study indicated that, with this method, a great amount of iron concentrate is produced and, simultaneously, the sulphidic fraction is separated that can later be managed more easily owing to the reduced volume.

Central composite design for optimization and formulation …

Basics of Iron Ore Sintering | SpringerLink

The iron ore fines and concentrate cannot be directly utilized in blast furnace, and therefore, its agglomeration i.e. enlargement of particle size is necessary before it is used as feed for iron making. Sintering is one of the methods of agglomeration. All iron oxide bearing wastes and coke breeze is used for sintering purpose.

Review of research progress on preparation of high-quality iron …

The preparation of high-quality iron concentrate from pyrite cinder by means of desulphurization has potential industrial applications. On one hand, the comprehensive utilization of pyrite cinder ...

Assessment of the effect of iron magnetic concentrate …

The iron concentrate Blaine number was reduced from 1800 to 1512 cm 2 /g. The Blaine's more significant decline in the pilot test ( −2 8 8) than in the laboratory test ( −2 1 8) is …

Full article: Modeling and optimization of wet flue gas …

Mathematical model. Mathematical model for SO 2 removal in WFGD, considering mass transfer and chemical reactions (Hou, Bai, and Yin Citation 2013), was chosen as the main part of concentration model for its ability in generalization.For the solving efficiency of models, especially for operation optimization during which the concentration model could be called for …

Desulfurization of Iron Ores: Processes and Challenges

The designed process under the optimized desulphurization conditions was applied to a real iron ore concentrate. More than 75% of the total sulphur was removed via …

(PDF) The effect of column flotation operational variables on

The aim of this study is to investigate the effect of operational variables on flotation column performance in desulphurization process from iron concentrate and to optimize operational conditions ...

CN217594089U

The utility model relates to an iron ore concentrate production technical field especially relates to a quick desulphurization unit of iron ore concentrate, including the main casing body of device, the surface of the main casing body of device has a door body through hinge fixed mounting, inlay on the both sides inner wall of the main casing internal portion and install the electrical heating ...

(PDF) DESULPHURISATION OF IRON ORE SLIME BY …

In this study, the desulphurization of iron ore concentrate using reverse flotation was investigated. In this paper first, behavior of the flotation of both pure – pyrite and iron oxides-pyrite ...

Desulphurization Of An Iron Concentrate

The mechanism of desulphurization of self CaS03 becomes CaCO4 due to reaction with SO2 and finally it reacts with iron ore as follows, CaSO4 Fe203''= CaO Fez 03 SO2 + 40, (5) Therefore, it is considered that calcium fer rite is formed and Sulphur . is removed as SO2 of an iron concentrate,desulphurization of an iron concentrate.