Txhawm rau txhim kho daim ntawv thov siv cov pa roj carbon monoxide ferrochrome hmoov, desulfurization yog qhov tseem ceeb, tom qab kev sim tom qab cov txheej txheem desulfurization ntawm cov roj carbon ferrochrome hmoov muaj peev xwm tsim nyog txhim kho qhov ntau lawm tuaj yeem nce ntxiv rau 5% ~ 7%, zoo heev txo kev noj ntawm cov khoom siv raw tus nqi ntawm cov smelter, thiab txhim kho cov txiaj ntsig kev lag luam ntawm lub tuam txhab. Cov pa roj carbon ntau ferric chromium hmoov desulfurization tom qab feem ntau daws qhov teeb meem ntawm cov ntsiab lus sulfur siab hauv cov khoom lag luam, ua ntej cov khoom lag luam pom ntau dua Ⅱ pawg ntawm leej faj, thiab daim ntawv thov desulfurization ntawm high carbon ferric chromium hmoov tom qab cov khoom tseem ceeb yog pawg ntawm leej faj, qhov zoo tshaj ntawm cov khoom lag luam tau txhim kho zoo heev.
Tom qab lub desulfurization ntawm high carbon ferric chromium hmoov smelting carbon nce, qhov rov qab ntawm chromium trioxide muaj qhov nce ntau heev, cov ntsiab lus ntawm magnesium nyob rau hauv slag tau zoo heev txo ntawm thawj 5% ~ 6% rau 3% ~ 4%, kom cov pa roj carbon ntau ferric chromium hmoov ntau dua cov tshuaj tiv thaiv, muaj txiaj ntsig txhim kho daim ntawv thov.
