What is used in the blast furnace to obtain iron from haematite ore?
A
Electrolytic reduction
B
Carbon dioxide
C
Carbon monoxide
D
Aluminium
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(a) Which solution is used for the leaching of silver metal in the presence of air in the metallurgy of silver ? (b) Out of C and CO, which is a better reducing agent at the lower temperature rangein the blast furnace to extract iron form the oxide ore ?
Which furnace is used for the extraction of iron from haematite ?
The main reactions occuring in blast furnace during extraction of iron from haematite ore…..
Account for the following facts: (a) The reduction of a metal oxide is easier if the metal formed is in the liquid state at the temperature of reduction. (b) Limestone is used in the manufacture of pig iron from haematite. (c) Pine oil is used in the froth flotation process used to concentrate sulphide ores.
The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Which of the following is obtained as a slag in the extraction of iron from haematite ore ?
The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Reducing species in the extractive metallurgy of iron from haematite ore is :
The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)
Carbon monoxide, carbon dioxide, coal, coke, lime, iron (II) oxide, iron (III) oxide, lime stone. The raw materials required for the extraction of iron from haematite are (i) ............ (ii) ............ and hot air. The mineral present in haematite is (iii) ........... which is reduced by (iv) ............ to iron
The main reaction occuring in blast furnace during the extraction of iron form haematite is
In which of the following cases flux is required? (i) In the smelting of roasted zinc blende (ii) In the extraction of iron from haematite in the blast furnace. Explain. Mention the name of the flux with the purpose it serves where it is required.
