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Results Of The Processing Of Metal Recycling

1. Rough Iron (pig iron) or Steel Gubal
Molten iron from the furnace is called the base with a rough iron (pig iron). Rustic iron containing 95% iron, 34% of carbon, the rest in the form of phosphorus, silicon and manganese.
2. Cast Iron (cast iron) or cast iron
If the pig iron is made into forms it is called a cast iron or cast iron.
3. wrought iron (wrought iron)
iron containing carbon levels are quite low (0.05 – 0.2%). Wrought iron is quite soft for various equipment such as shoes, iron horse, the wheel bolt, nut, machete, hoes, and so on.
1. in order that iron can be converted into various kinds of forms, levels-of carbon in iron should be reduced. By heating iron, carbon is oxidized to CO2.
2. on the basis of a rough calculation, to produce a ton of iron needed:
a. Two tons of iron ore
b. a ton of Coke
c. Half tons of limestone
d. Five tons of hot air.

The Process Of Iron Processing

In general the process of iron from its ore processing can take place in the following order:
a. Material – material inserted into the furnace through the peak of the furnace.
Materials – these materials in the form of:
1. main Material i.e.) of iron ore in the form of Hematite (Fe2O3) mixed with sand (SiO2) and oxide-oxide acid (P2O5 and Al2O3). This rocks the rock – will be reduced.
2. Material – material reducing agent) in the form of Coke (carbon).
3. additional Material in the form of) limestone (CaCO3) which serve to bind the substance-substance of do pants.
b. heat is included at the bottom of the furnace causing Coke burning.
C (s) + O2 (g) CO2 (g) H =-394-j
The reaction is very exothermic (heat producing), as a result of heat liberated will raise the temperature of the bottom of the furnace to reach 1,900 o C.
c. CO2 ride through a layer of Coke’s hot and react to him again to form gas co.
CO2 (g) + C (s) 2 CO (g) H = + 175 kJ/mol
The reaction this time runs endothermic (requiring heat) so that the temperature of the furnace in that section to about 1,300 o C.
d. Gas CO., formed and Coke that is ready to reduce the ore of iron (Fe2O3). Reaktion this can take place in several stages, namely:
1.) on top of the furnace, Fe2O3 is reduced to Fe3O4 at 500o C.
2 Fe2O3 (s) + CO2 (g) 2 Fe3O4 (s) + CO2 (g)
2.) On the lower part, Fe3O4 formed will be reduced to FeO at 850o C.
Fe3O4 (s) + 3 CO2 (g) the natural occurring FeO (s) + CO2 (g)
3. On the larger) bottom again, FeO formed will be reduced to metallic iron at a temperature of 1,000 o C.
FeO (s) + CO2 (g) Fe (l) + CO2 (g)
e. liquid iron that form will flow down and flows at the base of the furnace.
f. whereas, in the central part of the furnace-high limestone decompose according to cause reactions:
CaCO3 (s) CaO (s) + CO2 (g)
g. Later in basic furnaces CaO reacts with dopants and form a slag (slag), in the form of viscous fluid. His reaction as follows:
CaO (s) + SiO2 (s) CaSiO3 (l)
3 CaO (s) + P2O5 (g) Ca3 (PO4) 2 (l)
CaO (s) + Al2O3 (g) Ca (AlO2) 2 (l)
h. next, liquid iron down to the ground while the furnace slag (slag) that has a lower density molten iron daripaba will float on the surface and out on its own channel.

The process of processing iron ore to produce metallic iron made in furnaces blowhole (blast furnace). Furnace is a cylindrical tower-shaped blowhole of iron or steel with a height of about 30 meters and a diameter of the belly about eight meters. Due to the high tool, this tool is often also referred to as the blast furnace. Section – section of blast furnace is as follows:
a. The Summit called by Hopper, designed in such a way that the material – material that will be processed may be inserted and added all the time.
b. the bottom peak, had a hole to eject the results – the results in the form of gas.
c. the top from the base (approximately 3 feet from the base), there is a pipe-pipe which is connected with four furnace where air is heated (until the weather is a little over 1,100 o C). These hot air into the furnace where it through a pipe-pipe.
d. the bottom of the furnace, had two holes each – each one used for removing liquid iron and slag as the main results (slag) as a product.
Has done research on liquid waste processing industry with electromagnetism using batik method of iron as the electrode which aims to separate the color naftol of waste substances. During the process of metallic iron is capable of forming electromagnetism Fe (OH) 3, which serves as the adsorben hues, because substance floks Fe (OH) 3 is capable of color naftol adsorption substance so that substance colors can be separated from the waste. In the process of electromagnetism is done best conditions which include determination of potential applications, variation of pH and electrolytic time. The results showed that the potential applications of obtained 5 volt with best pH 2 with a time of electrolysis for 15 minutes. At room temperature, liquid waste elektrokoagulasi batik provide a decrease of absorbance 98,53%, whereas the decline of COD content, TSS and turbidity of each is 83,64%, 99,27% and 98,57%. The test showed any semblance of FTIR absorption that appeared between waste before deposition of electrolysis and electrolytic results. This shows that most of the coloring has been inseparable from liquid waste and ektrokoagulasi methods can be applied to resolve the colored liquid waste.