How is wrought iron prepared from cast iron? – InterviewSolution

1.	How is wrought iron prepared from cast iron?
Answer» Solution :Cast iron containing impurities like C, S, P and Si is oxidized in a reverboratory furnace lined with haematite and using lime stone. Haematite oxidizes CARBON to carbon monoxide. `Fe_(2)O_(3)+3Crarr2Fe+3CO` Limestone oxidizes silicon, sulphur and phosphorous they REACT with lime to form slag. The PURE metal is removed and free from the slag by passing through ROLLERS.

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