Fill in the Blanks Metals XVOnline version The steel making process by tekno TEKNESO 1 ore removed blast impurities crushed limestone molten iron coal remains escoria comprises arrabio gangue iron washed pig carbon furnace degrees impurities melted The steelmaking process all the works needed to obtain steel . . - First , the iron mineral is to remove . - Second , the mineral is and sieved in order to separate the from the ore . . - Thrid , the is mixed with and . - Fourth , this mixture is in a at 1500 celsius . - Fifth and finally , is obtained and the slag on the top is . So we can say that pig iron , which is called " " in spanish , is a mixture of , and . The slag , which is called " " in spanish , is the part which on the top of the pig iron .
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