您好,欢迎访问三七文档
当前位置:首页 > 电子/通信 > 综合/其它 > 螯合剂PADC的合成及其性能研究李嘉
SynthesisofchelatingagentPADCanditscapacityLiJia1,2,XiangXian2,XiangXiaofeng3,LuTiemei1,HuXingqi1,4(1.GraduateSchool,SouthwestPetroleumUniversity,Chengdu610500,China;2.CNPCChuanqingDrillingEngineeringCo.,Ltd.,DownholeServiceCo.,Chengdu618300,China;3.SichuanHuayouGroupCo.,Ltd.,Chengdu610000,China;4.StateKeyLabofOilandGasReservoirGeologyandExploitation,Chengdu610500,China)PADC1,2,2,3,1,1,4(1.,610500;2.,618300;3.,610000;4.,610500)[],(PADC),IR、1HNMR,PADCPb2+,:5mg/LPb2+,8min,pH=4,PADC24mg/L,PADCPb2+95.4%。[];;[]TQ085[]B[]1005-829X(2010)07-0059-03Abstract:PAMhasbeenusedasinitialrawmaterials,theheavymetalionschelatingagentPADCaresynthesizedbyatwo-stepreaction.ThestructureofthesubstanceischaracterizedbyIRand1HNMR.The5mg/LPb2+removalcapacityofPADCisinvestigatedandthebestremovalconditionsareobtainedasfollows:stirringtime8min,pH=4,dosageofPADC=24mg/L.Undertheseconditions,themaximumremovalrateofPb2+is95.4%.Keywords:PADC;chelatingagent;removaloflead1853,,。,〔1-3〕,,〔4-5〕。,、。,(PADC),,Pb2+。11.1:8900MX-IT,NICOLET;SHZ-D(),;DZF-6020,;DK-S22,;JB50-D,。:、、、、,,。1.21.2.1250mL,,30%2h,,10h。pH7~8(),,,。6mol/L30720107IndustrialWaterTreatmentVol.30No.7Jul.,201059——2010-07,30(7),pH=2。、、(PVAM·HCl)。,(1)。a=71CV1000m-8.5CV×100%(1):C———,mol/L;V———,mL;m———,g;79.5———,g/mol;71———,g/mol;a———,%。74.9%。1.2.2PADC250mL,,30%pH=7,,CS2,5h,,,CS2,,PADC。:RNH2+CS2+NaOH→NRHCS-Na++H2OS:0.6g(0.0002g)250mL,20mL,2mL,2,。10min,1mL,,,,。(2)。X=(C1×V1-C2×V2)×M1000×m×100%(2):X———,%;C1———,mol/L;C2———,mol/L;V1———,mL;V2———,mL;m———,g;M———,g/mol。PADC43.5%。22.1PADCIRPADCIR1。1:3428.65cm-1N—H;2926.04cm-1CH2;1447.00cm-1N-H;1141.58cm-1C=S;877.28cm-1N—H;624.00cm-1C—S〔6-7〕。2.2PADC1HNMRD2O,1HNMR2。2:4.00~4.51(m,CH2);3.10~3.82(m,CH2);2.00~2.52(m,CH2);1.17~2.00(m,CH2)〔6〕。2.3PADCPb2+2.3.1,Pb2+,PADCPb2+。GB7470—1987100mLPb2+,pH,PADC,,,Pb2+,,(3)。7.06.05.04.03.02.01.00.12PADC1HNMR60——2010-07,30(7)Q=(C0-C)/C0×100%(3):Q———Pb2+,%;C0———Pb2+,mg/L;C———Pb2+,mg/L。2.3.2PADCPb2+PADCPb2+,,、pH、PADCPADCPb2+。(1)PADC。pH=4100mLPb2+5mg/L3.2mgPADC,,PADCPb2+。,,,PADCPb2+;8min,PADCPb2+95.4%,1。:,PADCPb2+,PADCPb2+,,Pb2+,,,Pb2+,Pb2+。,,,Pb2+,Pb2+。(2)pHPADCPb2+。100mLPb2+5mg/L3.2mgPADC,8min,pHPADCPb2+。,pH=4,PADCPb2+95.4%,1。:,PADC—SH,Pb2+,Pb2+。,OH-,Pb2+,pH8,PADCPb2+。pH=4。(3)PADCPADCPb2+。100mLPb2+5mg/LPADC,pH=4,8min,PADCPADCPb2+。,PADC2.4mg,Pb2+95.4%,1。3(1)(PADC)。PADC。(2)PADCPb2+,、pHPADCPb2+,,5mg/LPb2+,8min、pH=4、PADC24mg/L,PADCPb2+,95.4%。[][1]ShiraishiY,NishimuraG,HiraiT,etal.Separationoftransitionmetalsusinginorganicadsorbentsmodifiedwithchelatingligands[J].Ind.Eng.Chem.Res.,2002,41(20):5065-5070.[2]HuynhHT,TanakaM.RemoveofBi,Cd,Co,Cu,Fe,Ni,PbandZnfromanaqueousnitratemediumwithbis(2-ethylhexyl)phos-phoricacidimpregnatedkapokfiber[J].Ind.Eng.Chem.Res.,2003,42(17):4050-4054.[3]KieferR,HollWH.Sorptionofheavymetalsontoselectiveion-exchangeresinswithaminophosphonatefunctionalgroups[J].Ind.Eng.Chem.Res.,2001,40(21):4570-4576.[4],,,.[J].,1998,17(6):569-575.[5],.[J].,1982(6):443-450.[6],,.[M].:,2003:52-148.[7].[M].2::,2000:27-98.1、pH、PADCPADCPb2+/min/%pH/%PADC/mg/%261.2274.21.238.8476.5495.41.656.2689.6693.82.080.0895.4890.02.495.41091.31059.82.894.81291.03.295.4[](1978—),2010,。:13540891615,E-mail:leo1316@163.com。[]2010-03-14(),:PADC61——
本文标题:螯合剂PADC的合成及其性能研究李嘉
链接地址:https://www.777doc.com/doc-6543837 .html