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Extraction and purification of iron

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Describe in detail the extraction and purification of iron.

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The metallurgy of Iron involves three main operations: - Concentration, Reduction and Purification or refining.

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Describe in detail the extraction and purification of iron(2 pages)

Major iron ores are Iron pyrites (FeS2), Haematitie (Fe2O3), Magnatite (Fe3O4), Limonite (Fe2O3.3H2O), Chromite (FeO.Cr2O3) etc. The metallurgy of Iron involves three main operations:-
1. Concentration or dressing
2. Reduction
3. Purification or refining
First Operation - Concentration
Ores usually contains soil, sand, stones and other useless silicates. These undesired impurities are called as matrix. Removal of these impurities is referred to as concentration. It is done either by physical process or chemical process. Before the ore is subjected to concentration it is crushed into small pieces in gyratory ...

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