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What is the approximately iron content in iron ore
Release time:
2025-03-14
Iron ore is mainly used in steel production and is an important raw material for the steel industry. It takes about 1.6 tons of iron ore to produce one ton of pig iron. According to different physical forms, iron ore is divided into raw ore, block ore, powder ore, concentrate ore and sintered ore. The ratio of sintered ore, pellet ore and block ore is approximately 70:15:15 in the iron ore that is finally smelted ore for blast furnaces.
The iron content in iron ore varies depending on the type of ore.
Hematite and Limonite: The iron content of these two ores is usually between 20% and 60%, with an average grade of about 40%.
Magnetite: The iron content of magnetite is generally between 25% and 40%, and the average grade is about 30%.
sidertite: The iron content of sidertite is relatively high, usually between 40% and 48%, and the average grade is about 45%.
Classification criteria for iron ore
Iron ore can be classified into different categories according to its chemical composition and physical properties:
High-quality dry iron ore: carbon content is less than 10.5%, phosphorus content is less than 0.07%, oxides are less than 25%. It is often used to prepare raw materials for rolling steel raw materials and light materials.
Dry iron ore can be used: the carbon content is 10.5% to 15.5%, the phosphorus content is less than 0.08%, and the oxide is less than 25%. It can meet the basic market demand as a rolled steel raw material.
Damn dry iron ore: The carbon content is greater than 15.5%, the phosphorus content is less than 0.08%, and the oxide is less than 25%. Due to its high carbon content, the raw materials cannot be used directly for steel rolling and can only be used as low-grade pig iron raw materials.
Dry iron ore can be comprehensively utilized: the carbon content is less than 15.5%, the phosphorus content is less than 0.08%, and the oxide is between 25% and 35%. It can be directly used for low-end steel rolling building materials production, or it can be used as raw materials for medium- and low-end steel rolling building materials through filler miscellaneous ore preparation.
Low-volatile iron ore: The carbon content is less than 20%, the total phosphorus content is less than 0.1%, the oxide is between 35% and 45%, and the raw material quality is relatively low, but it can be treated at low cost and low energy during the slag treatment of thermal power plants.
Uses of iron ore
Iron ore is mainly used in steel production and is an important raw material for the steel industry. It takes about 1.6 tons of iron ore to produce one ton of pig iron. According to different physical forms, iron ore is divided into raw ore, block ore, powder ore, concentrate ore and sintered ore. The ratio of sintered ore, pellet ore and block ore is approximately 70:15:15 in the iron ore that is finally smelted ore for blast furnaces.
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What are the companion ores of iron ore?
Summary: The types of associated ores of iron ore are diverse, including manganese ore, vanadium ore, phosphate ore and other metal minerals. These associated ores have an important impact on the smelting and utilization value of iron ore, and need to select appropriate processes and technologies for comprehensive recycling and utilization according to actual conditions.
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The gangue components in iron ore are mainly
The ganglite component in iron ore is mainly silica (SiO2). Gangli is a mineral component in iron ore other than the main iron ore, usually including quartz and silicates. The content of gangue components has an important impact on the processing and treatment of iron ore. For example, the higher the silica content, the greater the slag output, resulting in an increase in the coke ratio and the more coke consumed in the production of molten iron.
2025-03-14
What is the approximately iron content in iron ore
Iron ore is mainly used in steel production and is an important raw material for the steel industry. It takes about 1.6 tons of iron ore to produce one ton of pig iron. According to different physical forms, iron ore is divided into raw ore, block ore, powder ore, concentrate ore and sintered ore. The ratio of sintered ore, pellet ore and block ore is approximately 70:15:15 in the iron ore that is finally smelted ore for blast furnaces.
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Summary: The formation of iron ore is the result of a multi-stage and multi-factor joint action, involving multiple geological processes such as source of original substances, weathering and oxidation, sedimentation and enrichment, crustal movement and metamorphism, and magma activities. These processes together shape the physical and chemical properties of iron ore and also determine the distribution pattern of global iron ore resources.
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The processing process of iron ore usually includes crushing, grinding, magnetic separation, flotation, reselection and other procedures, and finally selecting iron ore. These processing steps ensure effective utilization of iron ore and increase its economic value.
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