Ferrovanadium (fev) yog qhov tseem ceeb hlau-vanadium alloy siv hauv steelmaking steelmaking. Nws yog feem ntau tsim los ntawm kev txo vanadium pentoxide (v₂o₅) nyob hauv muaj hlau.
1. Carbothermic Txo Txoj Kev (Hluav Taws Xob Hluav Taws Xob SMELING) [feem ntau)
Cov qauv no tau siv dav rau cov khoom lag luam loj. Nws cuam tshuam nrog kev txo vanadium pentoxide (v₂o₅) nrog carbon hauv ib qho hluav taws xob tshuab hluav taws xob.
Cov tshuaj tiv thaiv zoo nkauj:
Txo ntawm V₂o₅:
V2O {5+5 C} C}}}}}}}}}}}}} {{{{12} {}
Tsim ntawm ferrovanadium:
V + Fe → fevv + Fe \ leverarrow fevv + Fe → fev
Cov kauj ruam kauj ruam:
Cov Khoom Siv Khoom Raw:
Vanadium pentoxide (v₂o₅)
HLAU SEEM LOS YOG HLAU ORE (FE)
Txo tus neeg sawv cev (Coke lossis cov thee)
Flux (Txiv qaub, CAO, kom tshem tawm impurities)
Smelting nyob rau hauv ib tug hluav taws xob arc rauv:
Cov sib tov yog melted ntawm1600-1700 Qib, thiab cov pa roj carbon txo v₂o₅ kom nws yog xim hlau vanadium.
Vanadium dissolves rau hauv molten hlau, kev sib sau fev alloy.
Tapping & Refining:
Lub fev tsis tau hliv rau hauv cov pwm thiab txias.
Lub slag (muaj impurities) raug tshem tawm.
Crushing & nyuam qhuav tiav:
Cov fev solidified fev yog crushed rau hauv lumps lossis hmoov li nyob rau hauv specifications.
2. Alumin cov txheej txheem txo cov txheej txheem (thermite txheej txheem) [rau siab-purity fev]
Hom no siv cov aluminium (al) raws li tus neeg sawv cev txo cov tshuaj carbon, ua kom muaj cov ntsiab lus muaj roj carbon tsawg.
Cov tshuaj tiv thaiv zoo nkauj:
Txo ntawm V₂o₅:
3V2O {{5+10 al → 6v → al {}} al2o33v}} {8}} txoj cai 'al \ resarrow 6v + 5 al {_2}} v2 o,6} {{17} {o3
Tsim ntawm ferrovanadium:
V + Fe → fevv + Fe \ leverarrow fevv + Fe → fev
Cov kauj ruam kauj ruam:
Cov Khoom Siv Raw Hlau:
Vanadium pentoxide (v₂o₅)
Hlau seem lossis hlau oxide
Aluminium hmoov raws li tus neeg sawv cev txo
Flux (cao)
Ignition & txo cov tshuaj tiv thaiv:
Cov sib tov yog zes ntawm2000-2500 Qib.
Qhov kev tawm tsam zoo heev tshwm sim, tsim cov fev tsis zoo thiab txhuas oxide (al₂o₃) slag.
Sib cais & txias:
FEV Alloy sawv hauv qab thaum al₂o₃ slag floats thiab raug tshem tawm.
Lub alloy yog txias thiab tsoo rau hauv qhov ntau thiab tsawg.
