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this process is used for sponge iron plant
in sponge iron they extract the oxygen 4 iron ore like hematite/magnatite
mehdi:
Since 1969, Midrex and its partners have built (or are constructing) 72 MIDREX® Modules (shaft furnaces plus
reformers and associated systems) in 21 countries. To date, these facilities have produced 590 million tons (Mt) of
DRI and HBI. This record of plant sales, successful start-ups, and continued outstanding performance has resulted in
a market share for MIDREX® Technology of 50 percent or more each year since 1984.
The success of the MIDREX® Direct Reduction Process is based on the firm foundation of the work done by Donald
Beggs and his colleagues in the Surface Combustion Division of the Midland-Ross Corporation in the 1960s. Beggs'
concept of pairing a stoichiometric CO2 reformer with a shaft furnace to reduce iron oxide was brilliant, a once-in-alifetime
achievement. The MIDREX Process concept has stood the test of time and produced 40 million tons of iron
in 2008, trailing only the blast furnace.
MIDREX direct reduction ironmaking (hereinafter
referred to as the MIDREX process) reduces iron
ore using natural gas. The original process was
developed by the Midland-Ross Co., which later
became MIDREX Technologies, Inc. (hereinafter
referred to as MIDREX Technologies), a wholly
owned subsidary of Kobe Steel. A pilot plant was
built in Toledo, Ohio in 1967. The first commercial
plant, having a production capacity of 150 thousand
tonnes/year, was built in Portland, Oregon, in 1969.
The process was immature in 1978, when Kobe
Steel began the construction of a plant with a
production capacity of 400 thousand tonnes/year in
the State of Qatar. Kobe Steel significantly modified
the design, exploiting the company's technologies
developed through blast furnace operation, and
stabilized the then new process. On the other hand,
MIDREX Technologies also carried out various
improvements to the plants they built in various
countries. These were all integrated in the early
1980s, making the process nearly complete 1).
The maximum production capacity in 1984, when
Kobe Steel became affiliated with MIDREX
Technologies, was 600 thousand tonnes/year. Later
improvements, made by Kobe Steel in collaboration
with MIDREX Technologies, have dramatically
increased the production capacity. In 2007, the scale
reached 1.8 million tonnes/year, which is comparable
to that of a small blast furnace.
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What is the method of separating iron filling and powdered sugar mixtures?
It can easily be separated by the process of magnetic separation.
Is iron sulphide reversible or irreversible?
Iron sulfide is a chemical compound. A process or reaction may be reversible or irreversible; a compound isn't.
What type of material does a Cooper work with?
Coopers worked with wood and iron making barrels.
What is a process in which molten metal is poured into a mold and allowed to harden?
This process is known as casting. Iron in particular is often cast to make objects.
What is iron refined from?
In short, the iron ore hematite (Fe2O3). Iron is a raw material and you technically don't need to refine anything to get it. But because iron oxidizes (rusts) in the presence of oxygen, the iron ore must be heated and melted to remove the oxygen. During the process, the iron is usually mixed with carbon to increase it's strength. The end result is steel.
What is the process for producing sponge iron in coal based rotary kiln process quantitatively?
midrex technology for gas based DRI for coal based
Can sponge iron making is a primary metallurgical process - yes or no?
Yes, sponge iron making is a primary or can be a primar metallurgical process base on the Chemistry information that is provided.
What is the difference between continuous distillation and batch distillation in chamistry?
sponge iron production is continuous process sponge iron production is continuous process
How do you found Fe total of sponge iron?
Measuring the mass of sponge iron.
What is primary metallurgy?
Primary Metallurgy is the science of extraction of metals from ores & minerals. If there are more than one ways of extracting a metal from its ore or mineral, then the process which gives a more pure form of metal will belong to the category of primary metallurgy & the other processes will belong to the category of secondary metallurgy. e.g. in case of iron making the blast furnace process is a primary metallurgical process whereas other processes of iron making i.e sponge iron or HBI making will belong to yhe category of secondary metallurgy, I
How Fe separation from coal base sponge iron?
First sponge iron must be Roll crusher Next Magnet separation Next Create block sponge iron
What was puddling?
puddlind is the process of making a pure iron
What is the difference between Sponge iron and pig iron and their application?
pig iron is intermediate product of smelting of iron ore sponge iron is product of direct reduction of iron ore in solid state
Difference between pig iron and sponge iron?
http://encarta.msn.com/encyclopedia_761559225/iron_and_steel_manufacture.html Provides the answer. basic summary: 1. Pig Iron and Sponge Iron are the result of different production processes 2. Which results in different purities. Pig Iron has a lower purity than Sponge Iron.
Which process is iron used as catalyst?
The Haber process (making amonia using nitrogen and hydrogen).
How sponge iron produced and the use of sponge iron?
Sometimes known as direct-reduced iron, sponge iron is a product that is produced using iron ore. The iron ore is often in the form of pellets or lumps, and is subjected to a reduction process that is created by the use of a reducing gas that emits from coal or a natural gas source. Sponge iron can be produced in several different types of furnaces, including coke or charcoal ovens, blast furnaces, and basic oxygen furnaces. There are several benefits associated with sponge iron that allow it to compete effectively with other types of smelted irons. One has to do with the actual composition of the final product itself. For example, this type of iron is considered richer than pig iron, another type of iron commonly produced in blast furnaces. Direct-reduced iron has a slightly higher iron content, which often makes it better suited for use in electric furnaces. In addition, the gases emitted during the production of sponge iron can be harvested and used in various other applications. This by-product of the iron making process helps to offset the cost of producing the iron, as well as aid in keeping other processes that require the gas for proper production. Sponge iron can also be used to produce a powdered ore that works very well when mixed with other metals in the production of different types of iron-based products. One of the more common uses for sponge iron is the creation of wrought iron. Iron of this type is helpful in the creation of ornamental objects for use around the house, such as decorative grills for screen doors, burglar bars for windows, and even for various types of wall hangings. Sponge iron is also often used for the manufacture of components used to create durable lawn and patio furniture. When properly treated, wrought iron furniture can easily resist deterioration from the weather, and last for a number of years. In recent years, refinements to the production of sponge iron have made it possible to reduce the iron without necessarily having to melt the ore. Because the iron can be made into pellets and even into powder, it is an economic and useful substitute for the scrap metal sometimes used by steel manufacturers. The amount of time and resources required to produce sponge iron is minimal, so it is possible to manufacture large amounts quickly, a fact that only adds to the advantages of this type of iron product.
Who developed a process for making better and less expensive iron?
Henry Bessemer
