Hauv ferrosilicon ntau lawm, qhov zoo ntawm ferrosilicon alloy tuaj yeem ua kom tau raws siab los ntawm kev them nyiaj rau qee cov ntsiab lus. Raws li cov tshuaj tiv thaiv cov tshuaj tiv thaiv, cov pa roj carbon ntau hauv cov Coke yog cov khoom siv tsis tu ncua thiab tawm sab saum toj ntawm cov nplaim hluav taws xob feem ntau carbon monoxide. Ib feem los yog feem ntau ntawm alumina trioxide, hlau oxide, magicium oxide thiab phosphorus pentoxide uas muaj nyob hauv cov hmoov nplej tshauv yog txo thiab ntxiv rau cov alloy; Qhov ntu tsis koom nrog cov tshuaj tiv thaiv mus rau hauv lub slag. Cov neeg Sulphur thiab silicon muaj nyob hauv Coke volatilize los ua silicon sulfide thiab silicon disulfide. Yuav tsum muaj rau coke zoo nyob ntawm seb hom ferrroalloy tsim tawm. Hauv kev tsim cov ferroalloys, qhov yuav tsum tau ua rau Coke zoo yog ntau dua, yog li cov cai, kuj tuaj yeem txaus siab qhov yuav tsum tau ua rau lwm cov ferroalloys.
Txhawm rau kom smelt zoo ferroalloys, nws tseem tsim nyog yuav tau tswj hwm qhov zoo ntawm cov khoom raw. Thaum yuav coke rau ferrroalloy ntau lawm, nws yog qhov tsim nyog los xaiv cov ntsiab lus hauv cov tshauv