What the final product of blast furnace? What is the composition of the iron produced and the source of high content of P? And how to reduce the content?

Question

Accepted Answer

The final product of a blast furnace is pig iron, which has a high carbon content. The high phosphorus content in iron is sourced from the ore and can be reduced through various methods.

The final product of a blast furnace is pig iron, which contains around 3-4% carbon.
The high phosphorus content in iron is sourced from the iron ore used in the blast furnace.
To reduce the phosphorus content, techniques such as fluxing agents or using low-phosphorus iron ores can be employed.