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  2. magantite iron ore used in coal based dri

magantite iron ore used in coal based dri

The reduction ratio of direct reduced iron varied depending on the grade of iron ore. Coal played an important role as a reducing agent in making the direct reduced iron. The coal must contain a

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  • why haematite iron ore is preferred against magnetite iron

    why haematite iron ore is preferred against magnetite iron

    hematite ore generally contains large concentrations of hematite, magnetite ore generally holds low concentrations of magnetite. As a result, this type of iron ore ore must be concentrated before it can be used to produce steel. In other words magnetite ore requires more treatment than hematite ore wich must undergo only a simple crushing

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  • process description and flow diagram of coal based dri plant

    process description and flow diagram of coal based dri plant

    Aug 07, 2016 · Description of Sponge Iron Manufacturing Process. Most of the plants in India use DRI process—a solid state direct reduction process by which iron ore is reduced to sponge without phase change. Raw material mix-iron ore, dolomite and coal are fed to one end of rotary Kiln as well as some fine coal also fed from discharge end and product sponge iron along with char is taken out from the …

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  • coal based direct reduction rotary kiln process ispatguru

    coal based direct reduction rotary kiln process ispatguru

    The metallic iron in this process is produced by the reduction of iron oxide below the fusion temperature of iron ore (1535 deg C) by utilizing carbonaceous material present in the non-coking coal. As the iron ore is in direct contact with the reducing agent throughout the reduction process, it is often termed as direct reduced iron (DRI)

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  • direct-reduced iron - an overview | sciencedirect topics

    direct-reduced iron - an overview | sciencedirect topics

    Jan 05, 2012 · Iron ore concentrate (magnetite or hematite or their mixtures) and noncoking coal mixed in pellets are processed for 10 min by a single-stage heat treatment in an RHF, yielding high-quality (96–97% Fe), slag-free iron nuggets. These nuggets are easier to handle than DRI or hot-briquetted iron and are processed in EAF or (after remelting) in BOF

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  • direct reduced iron and its production processes ispatguru

    direct reduced iron and its production processes ispatguru

    Mar 16, 2013 · Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal or natural gas. Processes which produce DRI by reduction of iron ore below the melting point of the iron are normally known as the direct reduction (DR) processes

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  • what are the uses of magnetite?

    what are the uses of magnetite?

    Aug 04, 2015 · It is also used in coal mining operations as a slurry with water to remove the heavier impurities by allowing the less dense coal to float to the surface. The magnetite can be reused in this process 90 percent of the time. Magnetite is also used as a source of iron to manufacture iron-based chemicals and fertilizers. Ferric chloride and ferric sulphate are manufactured with magnetite as one …

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  • types of iron ore: hematite vs. magnetite | inn

    types of iron ore: hematite vs. magnetite | inn

    Magnetite ore and hematite ore are among the four types of iron ore deposits found in this area. In Minnesota, this type of iron ore is mined mainly in the Mesabi Range, one of the four ranges

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  • spongeiron-simurgh iron and steel company

    spongeiron-simurgh iron and steel company

    The direct oxidation-reduction of iron ore (in the form of lumps, pellets, or debris) to iron results from the reduction gas or elemental carbon ... is either based on gas or rock. The use of coal is less considered due to environm. Read more. ... dri sponge iron price in Iran Similar to all products on the upstream of steel Also other ironware

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  • an account ofmagnetite orein india | steel360 news

    an account ofmagnetite orein india | steel360 news

    Like haematite, magnetite is not found in such high grades so as to be used as DSO. The ore is beneficiated for magnetite recovery. Magnetite ores have mere 15-40% iron content and as such, cannot be used directly for iron making. It has to be beneficiated to concentrate the iron bearing material

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  • pellet,iron oreconcentrste, sinterediron ore: buy from

    pellet,iron oreconcentrste, sinterediron ore: buy from

    Iron ore sinter is produced by lumping and sintering the iron ore concentrate, sintering ore, coal dust, and flux additives (the agglomeration process). In the iron and steel industry, iron ore sinter is used as the primary iron ore feedstock for ironmaking in blast furnaces

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  • gasbasedspongeironplant usingmagnetite ore

    gasbasedspongeironplant usingmagnetite ore

    How to use magnetite iron ore to make sponge iron in coal. the idea of the process of how to make sponge iron from iron ore is basically to add coal to remove oxygen from iron by adding non coking coal and to remove sulfur by adding lime stone , the iron ore and coal are crushed in crushers and screened to the recommended sizes (5mm mm) , then mixed and heated to degrees centigrade s , the

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  • process description and flow diagram ofcoal based dri plant

    process description and flow diagram ofcoal based dri plant

    Aug 07, 2016 · Coal plays a dual role in the Kiln. Part of coal is used as fuel to supply the desired heat so as to take the raw materials to the desired temp. But main role of coal is to supply carbon in the reduction process. Dolomite is used as sulphur scavenger which finally comes out with the char. Char contains ash of coal and other impurities of iron ore

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  • tunnel kiln coal based dri plant, in village

    tunnel kiln coal based dri plant, in village

    Initially, when the process was first introduced, the ore with an iron content >/= 65% was preferred and the preferred size of ore was 5-18mm. And coal of minimum “B” grade was required to be used for the solid state reduction or DRI making process; With the passage in time, quality of both iron ore and coal declined and still DRI was being produced. However, the only solution for iron ore fines was …

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  • (pdf)comparison of different coal based direct reduction

    (pdf)comparison of different coal based direct reduction

    world direct reduced iron production ha s grown tremendously. In 1999 the production In 1999 the production was 38.6 Mt and it has been forecast that world DRI production will expand to 45 Mt in

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  • direct reduced ironand its production processes ispatguru

    direct reduced ironand its production processes ispatguru

    Mar 16, 2013 · Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal or natural gas. Processes which produce DRI by reduction of iron ore below the melting point of the iron are normally known as the direct reduction (DR) processes

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  • direct reduced iron| industrial efficiency technology

    direct reduced iron| industrial efficiency technology

    Natural gas and coal are the two primary fuels used in DRI production. Whereas more than 90% of the global DRI plants use (lower grade) natural gas, production in India is primarily coal based. The energy consumption in natural gas based DRI production is well known and established to be 10.4 GJ/t-DRI

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