anthracite as a reductant of iron ore

Anthracite As A Reductant Of Steel - steampot

2020-5-2  Anthracite As A Reductant Of Steel. Iron is a base metal extracted from iron ore.Pure iron has melting point of 1530 degree centigrade and density of 7.86 gmcc.Iron making is the process of reduction of iron ore using the relevant reducing agent reductant.It is the hot, liquid, metallic iron product obtained upon reduction of iron ore normally in blast furnace or in corex.

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Siderite as a novel reductant for clean utilization of ...

2020-2-1  Petrus et al. (2019) used the anthracite coal and coconut charcoal as reductant instead of coking coal to process a limonitic laterite ore, which can reduce the carbon dioxide emission. The biochar, a by-product of the walnut shell that has a high fixed carbon content and lowers ash, was used as a reductant to recover iron from waste copper ...

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Effect of Coal Type on the Reduction and Magnetic ...

The detail information of the iron ore has been described in a previous paper. 4) The iron ore was crushed to 100 mass% passing 1 mm. Three kinds of coal with different rank, namely lignite, bitumite and anthracite in the ascending order, were used as reductant.

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(PDF) REDUCTANT CHARACTERISATION AND SELECTION ...

Reductant materials include not just carbons such as coke, coal, char but also bio-carbons in form of charcoal produced from different types of wood. ... and carbonaceous materials for ore ...

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A review of the use of anthracite in electric arc furnace ...

1994-12-31  The applications of anthracite in Electric Arc Furnace (EAF) steelmaking, include the adjustment of hot metal carbon content, the generation of foamy slags, and its use as a support fuel in the EAF to reduce power consumption per tonne of product. Incentives to use support fuel in EAF steelmaking include the reduction of electric power ...

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Dolochar as a reductant in the reduction roasting of iron ...

2017-3-20  The present investigation examines the viability of dolochar, a sponge iron industry waste material, as a reductant in the reduction roasting of iron ore slimes, which are another waste generated by iron ore beneficiation plants. Under statistically determined optimum conditions, which include a temperature of 900℃, a reductant-to-feed mass ratio of 0.35, and a reduction time of 30-45 min ...

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(PDF) The Effect of Carbonaceous Reductant Selection on ...

2017-4-1  mite pre-reduction process (also referred to as solid-state. reduction of chromite, SRC) has the lowest SEC. ( ~2.4 MWh/t FeCr achieved with approximately 45 pct. pre-reduced hot feed). In this ...

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Dolochar as a reductant in the reduction roasting of iron ...

2017-12-13  The present investigation examines the viability of dolochar, a sponge iron industry waste material, as a reductant in the reduction roasting of iron ore slimes, which are another waste generated by iron ore beneficiation plants. Under statistically determined optimum conditions, which include a temperature of 900°C, a reductant-to-feed mass ratio of 0.35, and a reduction time of 30–45 min ...

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A method for recovery of iron, titanium, and vanadium

2018-2-3  Optimal roasting conditions for iron/slag separation were achieved with a mixture thickness of 42.5 mm, a roasting temperature of 1200°C, a residence time of 2 h, a molar ratio of C/O of 1.7, and a sodium carbonate addition of 70wt%, as well as with the use of anthracite as a reductant.

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Biomass briquette as an alternative reductant for low ...

2018-1-1  Similarly, a recent work involving dolochar as a reductant for the Barsua slimes ended up with an iron ore concentrate of ∼64–65% Fe at a weight recovery of ∼70–71% under the optimum conditions such as temperature: 900 °C, reductant to feed ratio: 0.35 and reduction time: 30–45 min . This is because charcoal has a negligible amount ...

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Effects of anthracite replacing coke breeze on iron ore ...

Anthracite coal as fuel for iron ore sintering is compared with coke breeze. Anthracite is lower in porosity, higher in density, and slower in combustion rate. With higher proportion of anthracite in fuel, permeability of sinter bed tends to decrease resulting in lower sinter productivity.

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Partial substitution of anthracite for coke breeze in iron ...

2021-1-15  Based on the above issues, anthracite has become the main substituting fuel for coke breeze in iron ore sintering due to its reasonable price 19,20.When this substitution is made, the particle ...

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Anthracite/ Carbon Millers Base Minerals African ...

2021-8-30  Anthracite Reductant. Anthracite is combined with sulphur and iron salts to create a glass colourant that strengthens the glass, working as a redox glass carbon. This glass carbon or glasscarb can trim redox and eliminates gaseous imperfections within the glass that can occur upon the addition of sodium sulphate.

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(PDF) Hydrogen as a reductant for iron ores and the ...

The equilibria of iron ore reduction with the gases CO. and H 2 are well known [2]. Above 850°C, hydrogen is. even stronger in reducing power than CO. Hydrogen, atomically small and with high ...

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Sintering of Bahariya Iron Ore Using Anthracite at the ...

The partial and complete replacement of coke breeze with anthracite for sintering Bahariya iron ore at the Egyptian Iron Steel Company (EISCO) was carried out. The best results were obtained for 25% of coke breeze replaced with anthracite. The specific productivity increased from 0.914 to 1.247 t/m2 /h, the sinter strength increased from 88 to 90%, the porosity increased from 16.25 to 16.89% ...

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REDUCTANT CHARACTERIZATION AND SELECTION FOR

2010-11-12  Vietnamese anthracite (92.86% fixed carbon, 4.03% ash, 3.11% volatiles) and Springlake anthracite ... Both the ore and the reductant were ground and sized to -53+75 microns. The reaction mixture was heated in an alumina sample holder of the TGA from room temperature to selected reaction temperature at a rate of 10°C per minute, and then held ...

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APPLICATION OF SOLID REDUCTANT FOR DIRECT

2012-1-10  iron ore to metal using charcoal as reductant. (1) Adrien Chenot also took a patent some time in the middle of the last century to produce sponge iron utilising iron ore concentrates and. charcoal' in a retort. (2) There are many other names and attempts associated with ,the early development, of direct reduction which are only of historic in-

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Dolochar as a reductant in the reduction roasting of iron ...

2017-12-13  The present investigation examines the viability of dolochar, a sponge iron industry waste material, as a reductant in the reduction roasting of iron ore slimes, which are another waste generated by iron ore beneficiation plants. Under statistically determined optimum conditions, which include a temperature of 900°C, a reductant-to-feed mass ratio of 0.35, and a reduction time of 30–45 min ...

More

Reduction of Low Grade Iron Ore Using a Mixture of ...

One attempt to utilize low grade iron ores involved the oxygen reduction by carbon monoxide. Carbon monoxide commonly produced from the carboneous materials such as coal but using coal as a reductant may harm the environments. On the other hand, plastic wastes or polyethilene have large potential as reductants for iron ores because their major elements are hydrogen and carbon.

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Dolochar as a reductant in the reduction roasting of iron ...

The present investigation examines the viability of dolochar, a sponge iron industry waste material, as a reductant in the reduction roasting of iron ore slimes, which are another waste generated by iron ore beneficiation plants. Under statistically determined optimum conditions, which include a temperature of 900°C, a reductant-to-feed mass ratio of 0.35, and a reduction time of 30-45 min ...

More

Effects of anthracite replacing coke breeze on iron ore ...

Anthracite coal as fuel for iron ore sintering is compared with coke breeze. Anthracite is lower in porosity, higher in density, and slower in combustion rate. With higher proportion of anthracite in fuel, permeability of sinter bed tends to decrease resulting in lower sinter productivity.

More

Partial substitution of anthracite for coke breeze in iron ...

2021-1-15  Based on the above issues, anthracite has become the main substituting fuel for coke breeze in iron ore sintering due to its reasonable price 19,20.When this substitution is made, the particle ...

More

Anthracite/ Carbon Millers Base Minerals African ...

2021-8-30  Anthracite Reductant. Anthracite is combined with sulphur and iron salts to create a glass colourant that strengthens the glass, working as a redox glass carbon. This glass carbon or glasscarb can trim redox and eliminates gaseous imperfections within the glass that can occur upon the addition of sodium sulphate.

More

(PDF) Hydrogen as a reductant for iron ores and the ...

The equilibria of iron ore reduction with the gases CO. and H 2 are well known [2]. Above 850°C, hydrogen is. even stronger in reducing power than CO. Hydrogen, atomically small and with high ...

More

REDUCTANT CHARACTERIZATION AND SELECTION FOR

2010-11-12  Vietnamese anthracite (92.86% fixed carbon, 4.03% ash, 3.11% volatiles) and Springlake anthracite ... Both the ore and the reductant were ground and sized to -53+75 microns. The reaction mixture was heated in an alumina sample holder of the TGA from room temperature to selected reaction temperature at a rate of 10°C per minute, and then held ...

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Anthracite: A+hard+shiny+coal+with+ahigh+carbon+ ...

2014-1-7  Metallurgical+Anthracite+Price+Index+(MAPI)+ MAPI1+( reductant+fines)+explained:+ Parameter Unitbasis Min*/* max MAPI*1* Std.quality Scale* Range* % Weighng

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Reduction of Low Grade Iron Ore Using a Mixture of ...

One attempt to utilize low grade iron ores involved the oxygen reduction by carbon monoxide. Carbon monoxide commonly produced from the carboneous materials such as coal but using coal as a reductant may harm the environments. On the other hand, plastic wastes or polyethilene have large potential as reductants for iron ores because their major elements are hydrogen and carbon.

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discovery of the ^Process for (^Making ^Anthracite Iron I

stone coal and iron ore, in the arts, is an event of decidedly greater moment to the prosperity of our state, than any that has occurred since the application of steam in aid of human labor."3 Advertising the need for finding a way to make anthracite iron, the Franklin Institute of Philadelphia as early as 1825 had offered a gold medal

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Dolochar as a reductant in the reduction roasting of iron ...

The present investigation examines the viability of dolochar, a sponge iron industry waste material, as a reductant in the reduction roasting of iron ore slimes, which are another waste generated by iron ore beneficiation plants. Under statistically determined optimum conditions, which include a temperature of 900°C, a reductant-to-feed mass ratio of 0.35, and a reduction time of 30-45 min ...

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PAPER OPEN ACCESS Effect of basicity and reductant

2020-5-19  limonite ore was performed in submerged electric arc furnace (SAF) using metallurgical coke as a reductant.The effects of basicity and reductant amount on the metal yield and recovery of nickel and iron were investigated.The present study aims to provide a basis for the utilization of nickel laterite

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