Cov khoom siv ntxiv ntawm silicon hlau: suav nrog ntug silicon, silicon micropowder, silicon dub, silicon hlau slag thiab lwm yam. Ntawm lawv, silicon micropowder, tseem hu ua silica fume, silica hmoov lossis silica tshauv, yog siv dav hauv kev lag luam pob zeb thiab cov khoom siv refractory. Cov khoom tseem ceeb ntawm cov hmoov hlau silicon yog crystalline silicon. Thaum xub thawj nws yog lumpy nyob rau hauv cov duab thiab kuj ruaj khov nyob rau hauv cov xim. Tom qab ib tug series ntawm crushing los yog sib tsoo ua hauj lwm, nws yog nyob rau hauv hmoov lub xeev thiab feem ntau inactive.
Feem ntau, sodium hydroxide yog siv los ua catalyst, thiab silica hmoov dissolution txoj kev yog siv los npaj silica sol, uas yog, silica cov ntsiab lus ntawm ntau tshaj 30%, yielding ntau tshaj 80% ntawm silica sol, kuj hu ua silicate hydrosol los yog silica hydrosol. , uas tau siv dav hauv kev lag luam ntawm precision casting, catalyst carriers, papermaking, textile thiab lwm yam. Txoj kev npaj ntawm metallic silicon hmoov yog qhov yooj yim thiab yooj yim rau kev nkag siab txog txoj hauv kev npaj. Los ntawm kev sib cais, qee qhov nyiaj ntawm cov hmoov silicon crude nrog cov roj inert rau hauv cov ntshav arc, kom cov hmoov silicon crude ntawm qhov kub siab dua instantaneous evaporation rau hauv silicon vapor, thiab tom qab ntawd cov silicon vapor rau hauv qhov chaw txias, hauv nanoscale condensation rau hauv. lwm yam silicon hlau hmoov, silicon hlau hmoov txheej txheem yuav tsim ib co impurity Cheebtsam. Yuav kom tau txais cov hlau ntshiab silicon, nws yog ib qho tsim nyog yuav tau ua txoj haujlwm zoo ntawm kev tshem tawm impurities.
