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Hydrogen can serve as a reducing agent and the most prominent application appears to to be iron ore reduction. A variety of direct reduction of iron ores without coke has been carefully studied for a long time. These use hydrogen, carbon monoxide and carbon in a combination. The reason for the development is due to the following:
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In contrast to the blast furnace process, the direct reduced iron process operates at temperatures of up to 1000 °C. The iron ores are therefore not melted! This also applies to the gangue contained in the ore, which is why the iron ores used must be relatively low in gangue from the outset.
The solid state direct reduction processes generally operate at a temperature below 1100 °C, to prevent the formation of any semi solid phases. During the reduction process, the iron oxides present in any type of iron ore or mill scale get reduced to metallic iron in the solid state.
The present work describes the possibility of cold briquetting of fine iron ore to produce DRI in several cost effective ways using certain novel technologies developed during...
In the smelting reduction process, pelletized iron oxide ore or fine ore powders are pre reduced in a fluidized bed or reduction shaft. The reduced iron along with coal and lime is fed to a gasifier melter, which completes the reduction process and produces pig iron or hot metal of the same quality as a blast furnace.
HYL Direct Reduction Technology Adaptations for the . Pelletslump ore t hyl direct reduction process hyl is a process designed for the direct reduction of iron ores by use of reducing h and co gases as presented in figure above, there are three process schemes available for producing dri cold dri discharge is commonly used in an adjacent meltshop close to the dr facilities
The process of reduction of iron ore pellets carried out at a temperature of 950 1200°C in a rotary kiln using pulverized burner modified UPT. Balai Pengolahan Mineral Lampung LIPI (UPT.
Processes that produce iron by reduction of iron ore below the melting point are generally classified as DR processes. Based on the types of reductant used, DR processes can be...
HYL Process for Direct Reduction of Iron Ore HYL process is designed for the conversion of iron ore into metallic iron, by the use of reducing gases in a solid gas moving bed reactor.
Direct reduced iron , also called sponge iron, is produced from the direct reduction of iron ore to iron by a reducing gas or elemental carbon produced from natural gas or coal. Many ores are suitable for direct reduction.
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