Silicon slag yog ib yam khoom ntawm kev smelting hlau silicon thiab ferrosilicon. Nws yog ib hom scum ntab rau ntawm lub cub tawg thaum lub sijhawm smelting silicon. Nws cov ntsiab lus yog txij li 45% txog 70%, thiab cov seem yog C, S, P, Al, Fe, Ca. Nws pheej yig dua li cov hlau silicon ntshiab. Es tsis txhob siv ferrosilicon rau kev ua hlau, nws tuaj yeem txo tus nqi.
