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A method involves charging into furnace of scrap-metal, limestone and ore, pouring of phosphoric pig iron, melting, removal of intermediate slag. Slag of secondary aluminum production is additionally charged into furnace, at that slag is charged together with ore and limestone at the ratio of (0.001-0.015):(4-5): 1 respectively.
UA4408987A1988-04-131988-04-13METHOD OF STEEL SMELTING IN tilting open-hearth furnace
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