Iron Ore Concentrate

Iron Ore

Iron ore is the raw material required to make Steel through melting. There are some kinds of Iron Ore in the earth that one of the main forms of them is Hematite. Resources of Iron Ore are estimated to be about 800 billion Tones. Iron as a metallic element which forms about 5% of the Earth’s crust is the fourth element which is found in the Earth crust. Iron ores are rocks from which metallic iron can be economically extracted. Iron ore consists of oxygen and iron atoms connected with each other to create the iron-oxide molecule and to reach pure iron product it is needed to smelt iron ore for removing its oxygen.


Hematite & Magnetite Iron Ore

The principal iron ores are hematite (Fe2O3) and magnetite (Fe3O4).Hematite is an iron oxide mineral. It is non-magnetic and has color variations ranging from steel silver to reddish brown. Pure hematite mineral contains about 70 % iron. Approximately most of iron ore exports are high grade hematite. Magnetite is a kind of iron ore which is generally black in color and highly magnetic. Magnetite mineral contains 72.5% iron, which is higher than hematite but the more percentage of impurities makes it lower ore grade, and also more costly to produce the concentrates, which are used in steel smelting.


Iron Ore Concentrate

Iron ore concentrate is an output product from processing ores which have been grinded to separate disadvantageous elements and produce a higher quality product with about 65 % iron in comparison with the fine and lump. It is sold to sinter and pellet producers and because of its quality, usually its price is a little more but is overall priced competitively with iron ore fines. 
Iron Ore Concentrating Procedure
Crushing and screening are straightforward mechanical procedures that do not change an ore’s combination, and it is required that to be upgraded some of iron ores before smelting. Concentration refers to the operation of producing ore particles with more iron and lower silica compared to the original material. Most processes rely on density differences to separate light minerals from heavier ones, so the ore is crushed and ground to release the ore minerals from the gangue. Magnetic techniques also are used. The upgraded ore, or concentrate, is in the form of a very fine powder that is physically unsuitable for blast furnace use. It has a much smaller particle size than ore fines and cannot be agglomerated by sintering. Instead, concentrates must be agglomerated by pelletizing.

 

                 Ario Iron Ore Concentrate Specifications

Specifications

Test Result 

 Fe min 

 67

 Feo

22-27

P max

 0.055

 S max

 0.75

Sio2 max 

 2

 Al2O3 max

 0.5

 Cao max

 0.6

Mgo max

2

K80 (mm)

0.6

Moisture max

4

Grain Size

98<3mm