Kev tsim cov txheej txheem ntawm silicon calcium
Cov tshuaj tiv thaiv kab mob rau smelting calcium silicide feem ntau suav hais tias yog beCaO+SiO2+3C→CaSi+3CO↑
Txawm li cas los xij, ntawm qhov kub thiab txias, cov txiv qaub thiab silica ua ntej tsim cov calcium silicate slag nrog lub melting point, uas ua rau cov pa roj carbon txo cov tshuaj tiv thaiv nyuaj. Calcium muaj qhov kub tsis tshua muaj kub thiab tsis hloov pauv los tsim calcium vapor. Tsis tas li ntawd, SiO2 raug txo rau SiO (gas), yog li cov pa tawm ntawm lub qhov cub yog CO, Ca (gas) thiab SiO (gas). Calcium thiab silicon poob rau hauv lub cub tawg li ntawm 10% txhua. SiO (gas) thiab Ca (gas) hnov mob nrog cov pa roj carbon thaum dhau los ntawm cov khoom siv txheej, thiab feem ntau ntawm lawv tau hloov mus rau CaC2 thiab SiC, yog li cov reactivity ntawm carbonaceous txo tus neeg sawv cev tseem ceeb heev rau cov smelting ntawm calcium silica alloy. Calcium oxide thiab silica yog co-carbon ntawm qhov kub thiab txias los tsim CaC2 thiab SiC, uas yog cov khoom nruab nrab rau kev tsim cov silicon-calcium alloys. Thaum kawg, ib feem yog tshuav nyob rau hauv lub slag, yog li cov khoom ntawm silicon-calcium alloy yog slag smelting. Hauv cov ntsiab lus, cov txheej txheem ntawm kev tsim khoom ntawm silicon-calcium alloy tau pom zoo nrog CaC2 ua cov khoom hloov pauv. Qhov ntom ntawm silicon-calcium alloy yog me ntsis me dua li ntawm slag, thiab silicon-calcium alloy yog qhov tseem ceeb nyob rau sab sauv ntawm lub pas dej molten thaum lub sij hawm smelting, uas yog tus yam ntxwv ntawm smelting silicon-calcium alloy. Kev ntsuas tshwj xeeb yuav tsum tau ua thaum nws tawm ntawm qhov cub kom cais nws ntawm slag. Raws li kev soj ntsuam saum toj no, muaj peb yam txheej txheem rau smelting calcium silica alloy los ntawm electrocarbon thermal (txo) txoj kev, uas yog sib xyaw pub txoj kev, txheej txheej pub mis thiab calcium carbide txoj kev. Txoj kev electrosilicon thermal (txo) kuj yog ib txoj hauv kev rau kev tsim cov silicon-calcium alloys.
tiv tauj
Soyee Cheng
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