iron ore refining process

An iron ore refining method in which a secondary reactor (24) is employed for partly reducing iron ore and partly oxidising a carbon containing substance to form partly reduced secondary iron ore, coal char and a calorific gas containing carbon dioxide and carbon monoxide in a ratio of not less than about 0.25. The calorific gas is separated from the partly reduced secondary iron ore and the ...

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  • US5938815A Iron ore refining method Google Patents

    US5938815A Iron ore refining method Google Patents

    An iron ore refining method in which a secondary reactor is employed for partly reducing iron ore and partly oxidizing a carbon containing substance to form partly reduced secondary iron ore, the coal char and a calorific containing carbon dioxide and carbon monoxide in a ratio of no less than about 0.25. The calorific gas is separated from the partly reduced secondary iron ore and the coal ...

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  • iron Production and Refining Infoplease

    iron Production and Refining Infoplease

    Ductile iron is strong, shock resistant, and easily machined. Wrought iron is commercially purified iron. In the Aston process, pig iron is refined in a Bessemer converter and then poured into molten iron silicate slag. The resulting semisolid mass is passed between rollers that squeeze out most of the slag.

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  • Steelmaking and Refining Introduction to Chemistry

    Steelmaking and Refining Introduction to Chemistry

    The pig iron was melted in a running-out furnace and then run out into a trough. This process oxidized the silicon to form a slag, which floated on the iron and was removed by lowering a dam at the end of the trough. The product of this process was a white metal known as finers metal or refined iron.

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  • Refining iron ore BOC GROUP INC

    Refining iron ore BOC GROUP INC

    An iron ore refining method in which a secondary reactor (24) is employed for partly reducing iron ore and partly oxidising a carbon containing substance to form partly reduced secondary iron ore, coal char and a calorific gas containing carbon dioxide and carbon monoxide in a ratio of not less than about 0.25.

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  • Hydrogen Uses in Ironmaking Energy

    Hydrogen Uses in Ironmaking Energy

    Midrex NG process First plant built in 1969 Over 70 units constructed worldwide Over a . billion tons of iron . produced by the MIDREX process Iron ore is reduced to metallic iron in the MIDREX Shaft Furnace by . Hydrogen. and CO MIDREX Reformer reducing gas composition is typically 55% H. 2. and 36%CO (ratio ~1.5) Midrex plant with SMR ...

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  • Iron Mining Process Minnesota Iron

    Iron Mining Process Minnesota Iron

    Iron Mining Process. From blasting to crushing to separation – more than 85% of the iron mined in the United States is mined in northeastern Minnesota to make our nation’s steel. Blasting Taconite is a very hard rock. Using explosives, the taconite is blasted into small pieces. ... The iron ore is separated from the taconite using magnetism ...

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  • An Overview of Steelmaking Process Steel Technology

    An Overview of Steelmaking Process Steel Technology

    Iron ore is a combination of iron with oxygen and various other unwanted substances known as 'gangue'. The first metallurgical step involved in this process is to reduce iron ore to metallic iron in a blast furnace, using coke as both a fuel and reducing agent.

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  • Metallurgic Processes Boundless Chemistry

    Metallurgic Processes Boundless Chemistry

    Wrought iron and refined iron are products of pig-iron refining. Key Terms. Refining: Refining (as in non-metallurgical uses) consists of purifying an impure material, in this case a metal. steelmaking: The second step in producing steel from iron ore; electric arc furnace: A furnace that heats charged material by means of an electric arc

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  • OVERVIEW OF THE STEELMAKING PROCESS

    OVERVIEW OF THE STEELMAKING PROCESS

    Direct reduction Scrap Ladle (Refining) Electric arc furnace (Steelmaking) Iron Ore Pellets Electric Arc Furnace Steelmaking Continuous casting Design by Blisscommunication.com / Cover photo: ThyssenKrupp Steel / Tubes photo: Salzgitter The process shown above is illustrative only and is not designed to show the steelmaking process in detail.

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  • flow chart of gold ore mining to refinning process

    flow chart of gold ore mining to refinning process

    flow diagram of ore mining to refining process. Iron ore mining process flow chart gold ore refining process plant, gold ore refinery flow chart. In this process, many gold mining types of equipment are used,.get price. Mining and mineral processing Everything Maths and Science. We will take a brief look at exploration, extraction and refining.

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  • iron ore refining process stone crusher machine

    iron ore refining process stone crusher machine

    Iron ore refining process stone crusher machine construction waste crusher construction waste refers to the construction construction units or individuals to construct lay or demolish all kinds of buildings structures and pipe networks etc. and generate the spoil spoil waste residual mud and other wastes generated during the repairing .

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  • refining iron from iron ore schematic diagram BINQ Mining

    refining iron from iron ore schematic diagram BINQ Mining

    Feb 17, 2013 chromite ore refining process flow diagram – Grinding Mill China. flow diagram of ore mining to refining process – … Iron ore processing flow may be the … The image below is a schematic flow diagram of a typical oil refinery … More detailed

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  • Ironmaking Process an overview ScienceDirect Topics

    Ironmaking Process an overview ScienceDirect Topics

    Apr 04, 2012 Main component of BF slag is SiO 2 and Al 2 O 3, coming from iron ore as gangue minerals, and CaO added as a flux during sintering process. On the other hand, BOF slag mainly contains CaO added as a refining agent, and SiO 2 and iron oxides produced by oxidation refining process. The EAF slag is classified into two types, oxidation slag and reduction slag, which are produced during steel refining …

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  • Iron ore refining method The BOC Company Inc.

    Iron ore refining method The BOC Company Inc.

    Mar 13, 1997 Abstract: An iron ore refining method in which a secondary reactor is employed for partly reducing iron ore and partly oxidizing a carbon containing substance to form partly reduced secondary iron ore, the coal char and a calorific containing carbon dioxide and carbon monoxide in a ratio of no less than about 0.25.

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