What is the equation for industrial preparation of iron?

1. The industrial preparation of iron is to produce iron by the reaction of CO and Fe2O3, and its chemical equation is:

2. Principle: Iron oxide itself is oxidizing, and carbon monoxide can be used to reduce iron oxide. Burning iron oxide can react with reducing substances such as hydrogen (H2), carbon (C), and carbon monoxide (CO) to form iron + X (oxide).

3. Reduction of iron oxide by carbon monoxide in the laboratory

1. Device: <>

2. Phenomenon: red powder gradually turns black; The clarified limestone becomes cloudy, and when the exhaust gas is burned, a blue flame is produced.

3. Experimental Procedure:

1) Check the air tightness of the device.

2) Load the drug and secure the device.

3) Pass in carbon monoxide gas and light an alcohol lamp.

4) After all the air in the device is exhausted, light an alcohol blowtorch to heat the iron oxide.

5) When the red powder inside the tube turns black, stop heating.

6) After the solids in the glass tube are cooled, stop the carbon monoxide and extinguish the alcohol lamp.

4. Experimental conclusion:

The red iron oxide is reduced to elemental iron by carbon monoxide, which is oxygenated at high temperatures to produce carbon dioxide.

5. Precautions:

1) Reaction conditions: high temperature; If there is no sprinkler blowtorch, a metal grille can be added to the flame of the alcohol lamp.

2) CO is highly toxic, the experiment should be carried out in a fume hood, and the unreacted gas should be treated as an exhaust gas; Exhaust gas treatment methods include collection and combustion (conversion of CO into non-toxic CO2) to prevent air pollution.

3) Operation sequence: CO should "go out early and return late", and sprinkler blowtorch should be "late and leave early". At the beginning of the experiment, CO is introduced to exhaust the air in the device to prevent CO from mixing with air and heating **; After the experiment, CO gas should be introduced until the glass tube cools down to prevent the iron at high temperature from coming into contact with the air and being oxidized.

In the blast furnace, there are mainly the following reactions (taking Fe2O3 as an example):

caco3==cao+co2

cao+sio2==casio3 (slagging )

c+o2==co2

c+co2==2co

fe2o3+3co==2fe+3co2

All reaction conditions are "high temperatures".

Industrial iron is all obtained from iron ore. The question you asked doesn't seem to be fully expressed.

The principle of ironmakingChemical equations:feo+co=fe+co2、fe0+c=fe+co。The principle of ironmaking is to convert iron ore.

Oil, coal, coke and other raw materials are put into a blast furnace and heated, and the oxygen in the iron is captured to form iron.

The raw materials used in blast furnace smelting are mainly composed of three parts: iron ore, fuel (coke) and flux (limestone). The characteristics of blast furnace ironmaking: the scale is large, whether it is other countries in the world or China, the capacity of the blast furnace is constantly expanding, such as China's Baosteel.

The blast furnace is 4063m3.

Pig iron is a blast furnace product (referring to blast furnace smelting pig iron), and the blast furnace product is not only pig iron, but also ferromanganese, etc., which belongs to ferroalloy products. The ferromanganese blast furnace does not participate in the calculation of various indicators of the ironmaking blast furnace. The blast furnace ironmaking process also produces by-products such as water slag, slag cotton and blast furnace gas.

The principle of ironmaking (how to make iron from iron ore) is the reduction of iron oxides in iron ore to metallic iron with a reducing agent.

Iron oxides (Fe2O3, Fe3O4, FeO) + reducing agents (C, Co, H2) Iron (Fe).

The chemical equation for <> industrial ironmaking is: Fe?o?+3co==2fe+3co?(high temperature) (reduction reaction).

Principle: Carbon monoxide and iron oxide produce iron and carbon dioxide at high temperatures. At high temperatures, iron ore is reduced with a reducing agent to obtain pig iron.

The main raw materials in ironmaking are iron ore, coke, limestone, and air. Iron ore includes hematite and magnetite. The iron content of iron ore is called grade, which must be beneficiated before smelting, removing other impurities, improving the grade of iron ore, and then crushing, grinding and sintering before it can be sent to the blast furnace for smelting.

The role of coke is to provide heat and produce the reducing agent carbon monoxide. Limestone is used to remove gangue from slag and smelt to separate the iron produced by smelting from impurities. The main equipment for ironmaking is the high-width staring furnace.

During smelting, iron ore, coke, and limestone are added from the top of the furnace inlet, and hot air is blown into the furnace from the bottom to the top of the air inlet, and at high temperatures, the reactants are fully in contact with the reaction to obtain iron. Blast furnace ironmaking refers to the smelting of iron ore and coke, carbon monoxide, hydrogen and other fuels and fluxes (theoretically speaking, iron can be smelted at high temperature by mixing metals and ores with stronger metal activity than iron) into the blast furnace to remove impurities and obtain metallic iron (pig iron).

The chemical equation for iron is Fe. Iron is a metallic element with an atomic number of 26 and an average relative atomic mass of . There are four stable isotopes of iron in nature, fe-54, fe-56, fe-57, and fe-58, and the half-life can be considered to be infinitely long without taking into account proton decay.

There are also two other radioisotopes, fe-55 and fe-59, with half-lives of years and days, respectively. Pure iron is white or silvery-white with a metallic luster. Melting point 1538, boiling point 2750, soluble in strong acid and medium strong acid, insoluble in water.

Iron has 0, +2, +3, +4, +5 and +6 valences, of which +2 and +3 are more common, and +4, +5 and +6 are rare.