Silicon thermal method
Flake vanadium pentoxide siv 75% ferrosilicon thiab ib qho me me ntawm txhuas raws li kev txo tus neeg sawv cev, thiab ua kom zoo nyob rau hauv alkaline hluav taws xob arc rauv los ntawm ob theem ntawm kev txo qis thiab ua kom zoo kom tau txais cov khoom tsim nyog. Thaum lub sij hawm txo qis, tag nrho cov kev txo qis hauv ib lub cub tawg thiab 60-70% ntawm tag nrho cov flaky vanadium pentoxide raug muab tso rau hauv lub cub hluav taws xob, thiab silicon thermal txo yog ua nyob rau hauv siab calcium oxide slag. Thaum V2O5 hauv slag tsawg dua 0.35%, slag raug tso tawm (hu ua lean slag, uas tuaj yeem muab pov tseg lossis siv los ua cov khoom siv hauv tsev) thiab nkag mus rau lub sijhawm ua kom zoo.
FeV 60
Lub sijhawm no, flake vanadium pentoxide thiab txiv qaub ntxiv kom tshem tawm ntau dhau ntawm silicon, aluminium, thiab lwm yam hauv cov kua alloy. Thaum cov alloy muaj pes tsawg leeg ncav cuag qhov yuav tsum tau, cov slag thiab ferrous alloy tuaj yeem raug tso tawm. Lub slag tso tawm tom qab theem ntawm refining yog hu ua nplua nuj slag (muaj V2O5 txog rau 8-12%) thiab yuav raug xa rov qab mus rau lub qhov cub kom rov siv dua thaum them nyiaj pib hauv lub cub tawg tom ntej. Cov kua alloy feem ntau yog cam khwb cia rau hauv cylindrical ingots, thiab cov khoom tiav tau txais tom qab txias, demoulding, crushing thiab slag tshem tawm. Txoj kev no feem ntau yog siv rau smelting ferrovanadium uas muaj 40 mus rau 60% vanadium. Tus nqi rov qab ntawm vanadium tuaj yeem ncav cuag 98%. Refining txhua tuj ntawm ferrovanadium siv txog 1,600 kilowatt teev hluav taws xob.
fwv 80
Thermite txoj kev siv txhuas raws li tus neeg sawv cev txo qis thiab smelts siv txoj kev qis qis hauv lub cub tawg chim lined nrog lub cub tawg alkaline. Ua ntej muab ib feem me me ntawm cov nqi sib xyaw rau hauv lub reactor thiab ignite nws. Tom qab cov tshuaj tiv thaiv pib, ntxiv cov khoom seem ib zaug ib zaug. Nws feem ntau yog siv los smelt high-vanadium hlau (muaj 60-80% vanadium). Tus nqi rov qab yog me ntsis qis dua li ntawm txoj kev electrosilicothermal, txog 90-95%.
