生活煤气还原偏钒酸铵制备v2o3的研究

V2O31,2,2(1.,110023;2.,110422):,873933K,50min,,67%68%:;;;:TF111:A:0253-6099(2005)06-0061-02PreparationofV2O3throughReductionofNH4VO3withCityGasLIUGong2zhao1,HUOWei2,ANYuan2(1.SchoolofScience,ShenyangUniversityofTechnology,Shenyang110023,Liaoning,China;2.ShenyangInstituteofChemicalTechnology,Shenyang110422,Liaoning,China)Abstract:V2O3waspreparedthoughreductionofNH4VO3withcitygasinarotaryfurnacereactor.TheexperimentalresultsindicatedthattheNH4VO3canbecompletelychangedintoV2O3atreactiontemperature873933Kandreactiontime50mins.Thecontentofvananiumintheproductwas67%68%.Keywords:ammoniumvanadate;reduction;preparation;vananiumtrioxide,,,,[1][2],[34],,,11.1:;:,1.2,,,/100,600mm,810r/min1.315g,,810r/min,2.8L/h,10min,573K0.5h,,,,X1.4GB4689.12-84XBRUKERAXSD8ADVANCEX2:1)500KV2O52NH4VO3V2O5+2NH3+H2O2)V2O5V2O4V2O5+COV2O4+CO2(1)V2O5+H2V2O4+H2O(2)4V2O5+CH44V2O4+CO2+2H2O(3)3)V2O4V2O3256200512MININGANDMETALLURGICALENGINEERINGVol.256December2005:2005201209::(1963-),,,,,V2O4+COV2O3+CO2(4)V2O4+H2V2O3+H2O(5)4V2O4+CH44V2O3+CO2+2H2O(6)(1)(6)Kp:G0=A+BT=-RTlnKp=-8.3142.3026TlgKp=-19.1438TlgKpAB,[5],KP11/KlgK1lgK2lgK3lgK4lgK5lgK6500-14.81-13.13-45.23-10.75-21.40-35.48600-12.71-11.53-40.65-9.16-18.50-31.48700-11.20-10.40-37.39-8.02-16.42-28.62800-10.07-9.54-34.93-7.16-14.87-26.48900-9.19-8.88-33.03-6.50-13.66-24.811000-8.52-8.35-31.5-5.97-12.69-23.48:lgKi(i=1,2,6)(1)(6)lgKp1,5001000K,(1)(6)Kp,33.1V2O3V2O4V2O568.0%61.4%56.0%,,V2O3,,,,,;,,,V2O31,,V2O4V2O5,,873933K,67%68%3.22,,50min,,50min123.3XRDX,33,V2O3,V2O33X41),,5001000K,V2O32):873933K,50min,67%68%(65)2625=[1-(/)]100%=[1-(11463131710.4/59873119732.8)]100%=78.9%2.3,,,,,:SO2-3+Ca(OH)2CaSO3+2OH-SO2-4+Ca(OH)2CaSO4+2OH-,,,,,pHpH1011:SO2-31887mg/L,SO2-3430mg/L,,pH8pH12,,,,pH1031),SO25987mg/Nm31146mg/Nm3,119732.8Nm3/h,2),,pH10,pH8,3),,:[1],,.[J].,2004,23(7):4-6.[2],.[J].,2004(2):3-6.[3].[M].:,1997.[4],.135MW[J].,2004(4),28-30.[5],.[J].,2004(7):35-36.[6],,,./[J].,2004(2):11-13.[7].[J].,2004(2):49-51.[8],.[J].,2002(5):57-58.[9]Singh,Maneesh,Upadhayay,etal.Preparationofspecialcementsfromredmud[J].WasteManagement,1996,16(8):665-670.[10]ParamguruRK,RathPC,MisraVN.Trendsinredmudutilization2Areview[J].MineralProcessingandExtractiveMetallurgyReview,2005,26(1):1-29.[11],.[J].,2003(4):14-15.[12].[J].,2003,20(5):24-26.[13],.[J].,2001,21(4):305-307.[14],.[J].,1992,11(3):33-35.[15],.[P].,GB13223-2003.(62):[1],.[J].,2000(1):44-47.[2].()[M].:,1981.[3],.V2O3[J].,1984(3):27-30.[4],,.[J].,1993,14(3):413-414.[5],.[M].:,1993.566: