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EvaluationofthecorrosioninhibitionofammoniumpolyoxometalateswithKegginstructuresZhangLancui1,LiXiaohui1,CuiLixin1,LiuZhaobin2,GaoYan3(1.CollegeofChemistryandChemicalEngineering,LiaoningNormalUniversity,Dalian116029,China;2.CenterofAnalyticalTest,LiaoningNormalUniversity,Dalian116029,China;3.PetroChinaCo.,Ltd.,LiaoyangPetrochemicalCo.,Liaoyang111003,China)Keggin1,1,1,2,3(1.,116029;2.,116029;3.,111003)[]6Keggin,IR。、620#,。,Keggin,。[]Keggin;;;[]O614.61+3[]A[]1005-829X(2009)12-0052-04Abstract:Sixkindsofammoniumheteropolytungstophosphateshavebeensynthesizedbydirectprecipitationinso-lutionandcharacterizedbyIR.Thecorrosioninhibitionof20#steelinaqueousmediaareinvestigatedthroughstaticanddynamicweight-lossexperiments.Thefilmingpatternandcorrosivestateonthemetalsurfaceareanalyzedbyscanningelectronmicroscope.TheresultsshowthattheammoniumheteropolytungstophosphateswithKegginstruc-turesareallexcellentcorrosioninhibitorsoncarbonsteel,andthecorrosioninhibitioncapacityoforganicammoni-umsaltisbetterthantheirparentacidorinorganicammoniumsalt.Keywords:Kegginstructures;tungstophosphoricacid;organicammoniumsalt;corrosioninhibition[](2008364)(POMs),,“”,、,〔1-5〕。,〔6-8〕。,、、。、,、。,、。。、、-。、,,。2070,、,,,。,。、,,。〔9〕。,,,,。〔7-8〕2912200912IndustrialWaterTreatmentVol.29No.12Dec.,200952——2009-12,29(12)6Keggin20#,,,。。11.1、RCC-;TENSOR27,KBr;LDS-1;DF-101S;pHB-4;DDC-;DDS-11;600A,75kV,(0.067nm)。Na2WO4·2H2O、Na2HPO4·12H2O、HCl、、、、、、、、,。H3PW12O40·nH2O。20#,:(40±0.1)mm×(13.1±0.1)mm×(2±0.1)mm。1.2Keggin〔10〕Keggin(H3PW12O40·nH2O),IR。〔11〕,6,H3PW12O40·nH2O,6,、、、、、,。、、。(HPA-1)、(HPA-2)、(HPA-3)、(HPA-4)、(HPA-5)(HPA-6)。6。1.31.3.1,:pH=7.26;112mg/L;Ca2+(CaCO3)52.6mg/L;Cl-14.56mg/L;0.16mg/L;2.26mg/L;(CaCO3)70.65mg/L;Mg2+(CaCO3)24.74mg/L;(CaCO3)9.2mg/L;350μS/cm。。,。20#,,,24h,(±0.0002g),。,800mg/L,,()。72h,,、〔6〕。1。1.3.2,800mg/L,,62000mL,RCC-,GB/T18175—2000()。:40℃;75r/min;72h;pH。1.3.1。2。22.1IR6IR1。1/(mg·L-1)/g/(g·m-2·h-1)/%HPA-18000.01340.147641.54HPA-28000.01230.135546.34HPA-38000.00980.108057.22HPA-48000.00970.106957.66HPA-58000.01300.143343.25HPA-68000.01380.152139.76PW128000.00850.093762.89—0.02290.2525—2HPA-1HPA-2HPA-3HPA-4HPA-5/(mg·L-1)800800800800800—/g0.00230.00260.00320.00450.00860.0501/(g·m-2·h-1)0.02530.02870.03520.04960.09480.5522/%95.4294.8093.6391.0282.83—,:KegginOPW12HPA-1HPA-2HPA-3HPA-4HPA-5HPA-6400035003000250020001500100050016IR/cm-153——2009-12,29(12)1IR,,700~1100cm-1Keggin4,P—Oa,W—Od,W—Ob—W,W—Oc—W,,。,PW12,P—Oa,W—Ob,Oc—W。1400cm-13140cm-1N—H。1620cm-13400cm-1O—HH—O—H,C—H。6。IR,3。2.2SEM7,(SEM)2。36IR10801080106010781080108098098210069789849828978899248918918898128048168068028043112,13983146,14003134,11883163,14543163,14043444,16263497,16123445,16183509,15783424,16183382,161829842984298810789848978123123,14003433,16282930POaWOdWObWWOcWNHOHCH()/cm-1HPA-1HPA-2HPA-3HPA-4HPA-5HPA-6PW122(a)、(g)1000,2(h)(f)1000。2,Keggin,,,,,,,。。2(g)H3PW12O40·nH2OSEM,。H+。2(f)(NH4+)SEM,,,。2(f)(h)(NH4)3PW12O40。2(a)、(b)、(c)、(d)(e),,,。〔9〕,-,,,。2,,20#。22,(HPA-1),。HPA-13N,、,N,H+,,,、。,Fe,,,。3(1)Keggin20#。、,-,-。(2)。,。(3),、,,,,,。,2(SEM)(a)—HPA-1;(b)—HPA-2;(c)—HPA-3;(d)—HPA-4;(e)—HPA-5;(f)—HPA-6;(g)PW12;(h)—(f)1000。54——2009-12,29(12)6~9,,CODNH3-N。,。NH3-N,(1),,,NH3-N。3(1)COD,,,,NH3-N。(2)pHNH3-N,pH,NH3-N,COD。(3),COD,NH3-N。(4)。(5),pH3.0,50kPa,,《》(GB16889—1997)。[][1],.[J].,2001(9):19-21.[2],.[J].,1999,12(1):10-13.[3]Artiola-FortunyJ,FullerWH.Humicsubstancesinlandfillleachates:.humicacidextractionandidentification[J].JournalofEnvironmentalQuality,1982,11(4):663-666.[4]HarmsenJ.Identificationoforganiccompoundsinleachatefromawasteawastetip[J].WaterRes.,1983,17(6):669-705.[5],,,.[J].,2004,20(1):50-52.[6]OzturkI,AlttnbasM,KoyuncuI,etal.Advancedphysico-chem-icaltreatmentexperiencesonyoungmunicipallandfillleachates[J].WasteManagement,2003,23(5):441-446.[7],.[M].:,2000:9-10.[8],,,.[J].,2004,5(6):59-62.[](1970—),2003,,、、。:13983266698,E-mail:leekn@cqu.edu.cn。:,,E-mail:20071002030@cqu.edu.cn。[]2009-09-10()(51)。[][1]NishiyamaY,NakagawaY,MizunoN.Highturnovernumbersforthecatalyticselectiveepoxidationofalkeneswith1atmofmolecu-laroxygen[J].Angew.Chem.Int.Ed.Enxl.,2001,40(19):3639-3641.[2],,,.[J].:,2005,28(4):436-437.[3],.[J].,2003,19(4):337-344.[4],,,.、[J].,2007,19(1):81-83.[5],,,.[J].:,2002,34(1):117-120.[6],,.[J].:,1998(4):30-33.[7],,.Keggin[J].:,2003,26(4):404-406.[8],,.[J].,2003,32(11):472-473.[9],.[J].,1998,19(5):214-216.[10],,.[M].:,1998:7.[11]Rocchiccioli-DeltcheffC,FounierM,FranckR,etal.Vibera-tionalinvestigationsofpolyoxometalates[J].Inorg.Chem.,1983,22:207-216.[](1963—),,,,。:0411-82159312,E-mail:zhanglancui@lnnu.edu.cn。[]2009-08-14()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!,:Keggin55——
本文标题:Keggin结构多金属氧酸铵盐的缓蚀性能评价张澜萃
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