how is iron recycled?

Question

i need to know exact details and i cant find anything!
help anyone?

Answer 1

It is most often just melted down.

Pittsburg’s steel industry is pretty much running off of recycling scrap, it is cheaper to get new iron overseas so they only iron that is practical to make I the US is that from recycled materials.

Normally, a recycling center, a junk yard, a construction recycling yard, and other industries including police yards supplying handguns, end up with a lot of steel at the end of the recycling process and they send it off to old steel furnaces to be recycled into new steel products.

The History Channel has a new series they have been running for several months called Boneyards where they discuss the growing recycling industry.

Various police departments have had long standing programs where they take guns that were seized from criminals and after the cases are finished they are sent to a steel mill for melting down and recycling.

The Papst Brewer is the scene of a huge demolition and recycling project. Everything from the bricks to the steel is being recycled. One construction company has the contract to redesign the center for a local college and the town. It is a challenging job because the company went out of business in midstream and just stopped producing beer. Unsigned checks were found in files that were still in the offices, everything was left in place and the brewery was over 50 years old. All of the steel from it is being recycled.

US Steel was the cheapest and the best made in the world; but that was back in WW2. Since then Japan and other Asian countries have stolen more and more of the market. Even after extra taxes were added to foreign steel it was still cheaper to go abroad. China is one of our largest sources of steel, but then they are trying to become the world’s factory. Currently those infamous shipping containers that we receive in the tons by huge ships are becoming a problem. The cost to send those containers back to China for reuse is excessive so they stay in the US. The make excellent long term storage containers and have even entered the housing industry being used as a shell to create low cost homes. When this is done wall board is added, the steel is cut with passages and wiring and it is almost impossible to tell the house was not built with normal stick built construction methods. As we get more of those shipping containers we are going to have to get more creative in how we recycle them.

It is cheaper to recycle steel than create new steel, because most iron ore is oxidized and it is harder to remove the rust. Steel is iron with 6% carbon and it doesn’t rust as easily. Since steel melts at a high temperature it is possible to burn off all other materials during the melting process. Since the steel doesn’t have to be smelted and only melted it takes less energy to use recycled steel. The same is true for aluminum, only the energy savings is even higher.

Iron itself is rarely used as a construction material, except in wrought iron gates and display metal work. Instead steel is preferred and next to concrete it is the most common used construction material. Every high rise or concrete structure uses reinforced steel and that takes up a lot of the metal.

According to Wikipedia: http://en.wikipedia.org/wiki/Steel#Recycling
“Steel is the most widely recycled material in North America. The steel industry has been actively recycling for more than 150 years, in large part because it is economically advantageous to do so. It is cheaper to recycle steel than to mine iron ore and manipulate it through the production process to form 'new' steel. Steel does not lose any of its inherent physical properties during the recycling process, and has drastically reduced energy and material requirements than refinement from iron ore. The energy saved by recycling reduces the annual energy consumption of the industry by about 75%, which is enough to power eighteen million homes for one year. Recycling one ton of steel saves 1,100 kilograms of iron ore, 630 kilograms of coal, and 55 kilograms of limestone. 76 million tons of steel were recycled in 2005.

In recent years, about three quarters of the steel produced annually has been recycled. However, the numbers are much higher for certain types of products. For example, in both 2004 and 2005, 97.5% of structural steel beams and plates were recycled. Other steel construction elements such as reinforcement bars are recycled at a rate of about 65%. Indeed, structural steel typically contains around 95% recycled steel content, whereas lighter gauge, flat rolled steel contains about 30% reused material.

Because steel beams are manufactured to standardized dimensions, there is often very little waste produced during construction, and any waste that is produced may be recycled. For a typical 2,000-square-foot (200 m²) two-story house, a steel frame is equivalent to about six recycled cars, while a comparable wooden frame house may require as many as 40–50 trees.
Global demand for steel continues to grow, and though there are large amounts of steel existing, much of it is actively in use. As such, recycled steel must be augmented by some first-use metal, derived from raw materials. Commonly recycled steel products include cans, automobiles, appliances, and debris from demolished buildings. A typical appliance is about 65% steel by weight and automobiles are about 66% steel and iron.

While some recycling takes place through the integrated steel mills and the basic oxygen process, most of the recycled steel is melted electrically, either using an electric arc furnace (for production of low-carbon steel) or an induction furnace (for production of some highly-alloyed ferrous products).”

According to Wikipedia: http://en.wikipedia.org/wiki/Recycling#Ferrous_metals
“Iron and steel are the world's most recycled materials, and among the easiest materials to recycle, as they can be separated magnetically from the waste stream. Recycling is via a steelworks: scrap is either remelted in an Electric Arc Furnace (90-100% scrap), or used as part of the charge in a Basic Oxygen Furnace (around 25% scrap). Any grade of steel can be recycled to top quality new metal, with no 'downgrading' from prime to lower quality materials as steel is recycled repeatedly. 42% of crude steel produced is recycled material.

-- Non-ferrous metals
Main article: Aluminium recycling
Aluminium is shredded and ground into small pieces or crushed into bales. These pieces or bales are melted in an aluminium smelter to produce molten aluminium. By this stage the recycled aluminium is indistinguishable from virgin aluminium and further processing is identical for both.
Due to the high melting point of aluminium ore, large amounts of energy are required to extract aluminium from ore, making the environmental benefits of recycling aluminium enormous. Recycling aluminium only results in approximately 5% of the CO2 that would be released during the production of raw aluminium. The percentage is even smaller when considering the complete cycle of mining and transporting the aluminium. Also, as open-cut mining is most often used for obtaining aluminium ore, mining destroys large sections of natural land.

An aluminium can is 100% recyclable. Every time a can is recycled, enough energy is saved to power a television for about three hours (compared to mining and producing a new can).”

Answer 2

How Is Iron Recycled

Answer 3

Recycling iron requires much less energy than making it from iron ore in a blast furnace. The iron/steel to be recycled is just added to the molten iron already in a furnace- the impurities will rise to the top and can be skimmed off - the molten iron can then be poured off into ingots which when solidified can be transported to where it can further purified etc.

Answer 4

sent to a scrapyard sorted and sent to a foundry. If by iron you mean steel there are many different grades which have different properties and sent to different foundries or countries. India buys most of ours.
IT goes to scrapyard
is sorted; steel with paint can't go to some places; steel can have different mixtures of other metals.
Cut or bailed is put on lorry.
At the foundry they melt it in to what they like.
They throw sticks of alumium into the pot it help purify the steel some how. they are called 99's.
You don't see much iron nowadays

Answer 5

1

Answer 6

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RE:
how is iron recycled?
i need to know exact details and i cant find anything!
help anyone?

Answer 7

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