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what is the process of burning away the impurities of iron

Bessemer process - Wikipedia, the free encyclopedia

The key principle is removal of impurities from the iron by oxidation with air being .... His method was to first burn off, as far as possible, all the impurities and...

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A-level Chemistry/AQA/Module 2/Extraction of Metals - Wikibooks ...

In the first stage of the process, the coke reacts with oxygen in the air to form carbon dioxide. ... Iron Impurities The iron produced directly from the Blast Furnace still ... to form carbon dioxide, which causes the carbon to slowly burn away.

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Steel - Chemistry Explained

Placing the iron back in burning charcoal seemed to make it harder and stronger. ... sulfur and phosphorus impurities and excess carbon are burned away, and ... The most modern process for making steel is the continuous process, which...

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Iron - How Products Are Made

The most common process is the use of a blast furnace to produce pig iron which ... To produce iron, they slowly burned iron ore with wood in a clay-lined oven. ... is roasted with coke and lime to remove a large amount of the impurities in the ore. ... to float sand and clay away, magnetic separation, pelletizing, and sintering.

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Iron Ore - HowStuffWorks

There, a blacksmith burns charcoal with iron ore and a good supply of oxygen ... carbon dioxide and carbon monoxide (releasing lots of heat in the process). ... combine with the oxygen in the iron ore and carry it away, leaving iron metal. ... the bloom) forces impurities out and mixes the glassy silicates into the iron metal to...

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What Is the Steel Manufacturing Process? (with pictures) - wiseGEEK

Jun 27, 2015 ... The steel manufacturing process starts with mining iron or using scrap ... the impurities are effectively burned away, leaving only pure iron to...

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Carries's Choice - The Mars Pioneer

Feb 1, 2015 ... The Bessemer process rapidly removed impurities from the iron by ... from impurities decarburized the pig iron by burning away excess carbon...

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Inventions of the Industrial Revolution: Examples, Lesson & Quiz ...

The spinning jenny was the first step in speeding up the process of yarn production. ... This process used coke to burn away the impurities in iron, making a...

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Iron Making - Shropshire. History

The bloomery process could be carried out in a convenient location near the ore ... In the Finery Hearth, a Finer used charcoal to burn the carbon off the pig iron, ..... impurities decarburize the pig iron by burning the carbon away, forming steel.

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The Steel Business: A Ferocious Geyser - PBS

The device transformed pig iron into steel, a process previously managed by highly ... The heat increased tremendously, burning out impurities in the iron and ... As it ran nearly empty and the ladle swung away, the dropping slag fell to the...

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Industrial revolution - SlideShare

Oct 25, 2012 ... Henry Cort invents PUDDLING- process to burn away impurities in 4. ... Iron replaced by steel- light, strong2. electricity- heat & light NEW 1.

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Iron Furnaces - Kentucky Explorer Magazine

The process for smelting iron ore was discovered, independently, by a ... At the same time, a number of other impurities in the molten iron are also burned out. ... being lighter than iron, floated on top, where it was drained away separately as...

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How to Make Glass (with Pictures) - wikiHow

Making glass is a very ancient process, with archaeological evidence of glass ... Glass without iron impurities is sought for clear glass pieces, as the iron will .... You want a mold that won't burn or melt from the heat of molten glass - graphite works well. ... Keep the main vacuum unit as far away from the grill as possible.

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Jeremiah 6:29 The bellows blow fiercely to burn away the lead with ...

The assayer keeps on refining, but the impurities aren't separated out. ... The objection to this rendering is that the burning of the bellows would involve the interruption of the process .... They are bronze and iron; They, all of them, are corrupt.

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About Liquid Oxygen - Technifab Products, Inc.

Impurities in molten pig iron are burned away with streams of high-pressure oxygen to produce steel. Oxygen can also be combined with acetylene (C2H2) to...

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ASARCO » Smelting

The silica flux binds with the iron and other impurities and keeps them separated ... In the converter, air is blown into the matte to burn away the iron and any...

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design architecture - Science Encyclopedia

After the Baroque faded slowly away, eighteenth-century architecture ... Through a conversion process, all of the impurities were burned out of the iron ore, then...

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Retrotechtacular: The Bessemer Converter | Hackaday

Apr 7, 2015 ... More importantly, [Bessemer]'s process resulted in steel that was ten ... Basically, oxygen is blown through molten iron to burn out the impurities. .... how long the conversion was done; more blowing burned away more carbon,...

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Ductile Iron Pipe Creation Forges Durability and Sustainability

Ductile iron demonstrates qualities of durability, sustainability, and ... iron in the manufacturing process to help ... Impurities burn away, and once mag- nesium is...

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