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sintering of iron ore reactions

sintering of iron ore reactions

reduce NOx emissions from the iron ore sintering process under the stricter environmental protection policy. NOx was mainly generated by the oxidation reaction of nitrogen-containing organic (Fuel-N) in the solid fuel dur-ing iron ore sintering process, which was called fuel NOx. NO was the majority of the fuel NOx, accounting for about

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NO x Reduction in the Iron Ore Sintering Process with Flue

Feb 13, 2017 Flue gas recirculation (FGR) has been implemented for exhaust gas emissions reduction in iron ore sintering. However, the mechanism of NO x reduction through FGR is still unclear. In this paper, the laboratory pot-grate sintering test showed a 30% reduction in gas flow and 15.51% reduction in NO x emissions achieved with a 30% FGR ratio, and the sinter indexes almost matched those of …

Effect of Bonding Area Formation During Sintering on the

This study aims to understand the effect of sintering at 1623 K on the reaction characteristics of iron ores. By investigating the reaction characteristics of nine different iron ores with disparate properties, new reactivity indices including the iron ore reactivity index (IRI) and iron ore blending reactivity index (IBRI) independent of the sample size are derived based on the melt ...

Calcium Ferrit Generation During Iron Ore Sintering

May 06, 2015 So, with the increase of the temperature during sintering, reactions occur between fine particles of iron ores and fluxes to form low-melting compounds and then generate liquid phase, but iron ore nuclei almost would not participate in the reaction for its low reacting speed.

Prediction of sinter yield and strength in iron ore

Feb 25, 2018 Iron ore sintering is a complicated thermo-chemical process which involves a vast amount of chemical reactions and physical changes. Feed materials which contain ores, coke, flux, gangue, returned mines, and etc. are granulated and charged into the sintering machine.

Study of sinter reactions when fine iron ore is replaced

The production of most pig iron in the world is based on the use of iron ore sinter which consists of various mineral phases produced by sintering iron ores with fluxes and coke breeze. During the sintering process, the chemical reactions are taking place at high temperature and iron ores and fluxes are combined together and form a

Partial substitution of anthracite for coke breeze in iron

Jan 15, 2021 The iron ore sintering process is one of the vital steps -in an integrated steelmaking chain, the goal of which is to agglomerate iron ore fines into porous sinters with a …

Sintered Ore Philippine Sinter Corporation

Sintered Iron Ore/ Sintered Ore (SO) is the result of the sintering process. The product is made of ferrous and calcium which can be produced from fine iron ore and limestone thru a sintering machine. This mixture is then burned in a sinter machine to form hard but permeable lumps called sintered iron ore. The sintered iron ore is then fed to a ...

Mathematical model of thermal processes in an iron ore

The major solid-gas reactions in an iron ore sintering bed are coke combustion and limestone calcination. Gas species participate in these reactions as reactant or product. From this point of view ...

Thermodynamic Modelling of Iron Ore Sintering Reactions

Reaction Sequences in the Iron Ore Sintering. The reaction sequences involved in the formation of SFCA phase during heating of a sinter with a composition of 77.26 mass% Fe 2 O 3, 14.08 mass% CaO, 3.56 mass% SiO 2 and 5 mass% Al 2 O 3 was investigated by Scarlett et al. ...

Ore Sintering an overview ScienceDirect Topics

Apr 02, 2010 As described in Chapter 14 on iron ore sintering, sintering involves the combustion of fossil fuels like coal and coke breeze to generate the heat required for sintering reactions. Therefore, emissions from the sintering process arise primarily from the combustion reactions in the sintering bed on the traveling sinter strand.

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