Vanadium pentoxide (v2o5) yog ib qho ntawm feem ntau ntau yam thiab tsis tseem ceeb oxidation olidation catalysts siv thoob plaws kev lag luam niaj hnub. Los ntawm cov loj-teev ntau lawm ntawm cov sulfuric acid los xaiv oxidation nyob rau hauv cov tshuaj zoo, v2o5-based formulations tso cov kev ua tau zoo, muaj zog, thiab tus nqi-ua hauj lwm zoo. Raws li lub zog hloov kom nrawm dua thiab cov roj av v2o5 tab tom nrhiav cov cwj pwm hauv cov roj teeb uas txo cov khib nyiab thiab kev xaiv ntau.
Vanadium pentoxide yog dab tsi?
Vanadium pentoxide catalyst
V2o5yog lub zog ua kom muaj zog, cov kev ua haujlwm ntawm kev siv oxidation ntau nrog kev siv cov pa roj sulfuric, thiab xaiv cov oxidation ntawm lub teeb hydrocarbons thiab cov duab.
Catalytic Kev ua tau zoo nyob ntawm Crystal theem, thaj chaw thaj npoo av, txhawb nqa lub xeev cov khoom, thiab cov khoom siv
Cov khoom siv txuas yog thoob ntiaj teb, kev sib tw Vanadium-bearing ores, steelmaking slags, thiab roj av seem. Kev lees paub zoo dua no, tus kabmob tswj hwm, thiab theem theem sib xyaw ua ke yog qhov tseem ceeb rau cov txiaj ntsig rov qab ua dua tshiab.
Kev nyab xeeb thiab kev coj noj coj ua yog qhov tseem ceeb vim yog txoj kev xeb thiab lom ntawm vanadium sib txuas; Kev tuav cov tuav, ntim, thiab ua raws cai yog qhov yuav tsum tau ua.
Cov sijhawm tshwm sim muaj xws li catalysts rau huv ammonia-rau-zog, voc abatement, thiab sodium-ion roj teeb txiav txim siab siv v2o5 derivatives.
Cov Khoom Yooj Yim:
Molecular hnyav: 181.88 g / mol
Melting Taw tes: ~ 690 ° C (decomposes)
Ntws: ~ 3.36 g /m³
Solubility: me ntsis soluble hauv dej; soluble nyob rau hauv muaj zog alkali daws txoj kev daws teeb meem vanadates
Crystal qauv: Orthorhombic rau theem feem ntau; Txheej txheem qauv ua rau muaj kev cuam tshuam rau kev cuam tshuam thiab redox txheej txheem
Kev Lag Luam V2o5 Catalysts yog muab rau hauv ntau daim ntawv:
- Tej v2o5 (hmoov lossis flake): kev ua kom siab pentox pentoxide siv ua ib qho tseem ceeb rau kev tsim khoom lossis ncaj qha ntxiv.
- Txhawb catalysts:Vanadium pentoxide catalyst V2o5 dispersed ntawm cov neeg nqa khoom ntxig, zoo li tus pellets, ib ncig, saddles, lossis honeycombs. Cov loadings ib txwm los ntawm 1-10 wt% v2o5, tab sis tuaj yeem sib txawv.
- Kev tsim qauv catalysts thiab monoliths: rau scr thiab v2o5 yog koom rau hauv honeycomb monoliths, daim hlau, lossis corrugated qauv siv inorganic khi thiab cov neeg txhawb nqa.
- Cov qauv tshwj xeeb: V2o5 ua ke nrog phosphorus nrog phosphorus (V2O system), molybdenum, tungsten, titanium, thiab cov hlau me, thiab cov hom phiaj alkaline.
Cov Qib Purity:
Qib qeb:Haum rau kev oxidation uas trace impurities tau zam rau hauv spec. Kev impurities: fe, ni, k, si, si, p, s, cl.
High-Purity Qib:Tus neeg tsis huv qis dua cov txheej txheem rhiab catalytic los yog siv hluav taws xob.
Roj teeb Qib thiab Tshawb Fawb:Kev txwv nruj rau cov hlau alkali, chloride, thiab dej noo cov ntsiab lus; Kev tswj cov particle loj me me faib thiab thaj chaw tshwj xeeb.
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