1、上海大學碩士學位論文新萃取劑HCBMPPT的合成及萃取鈾（Ⅵ）的機理研究姓名：杭建忠申請學位級別：碩士專業(yè)：物理化學指導教師：包伯榮曹衛(wèi)國20030301Az海大攀碩士掌位論文AbstractAkindofnovelextractant，HCBMPPT(4一(2Chloro)benzoyl2，4一dihydro5一methyl2一phenyl一3H—pyrazol一3thione)wasSynthesizedandtheirextrac

2、tionbehaviorforU(Ⅵ)wasinvestigatedforthefirsttimeItmightbewidelyusedanddevelopedinnearfutureforseparat皇gnoflanthinideandactinJdeelementsThisdissertationmainlyincludesfiveparts1HCBMPPTandHBMPPTwereSynthesizedwithPMPaspare

3、nt，andcharacterizedbyIRspectra、massspectra、elementalanalysisanddiffefientialscanningcalorimeter(DSC)2TheextractionbehaviorandmechanismofU(VI)withHCBMPPTintoluenefromnitricacidsolutionwasstudiedThereis110bigdifferenceindi

4、stributionratiofordifferentselecteddiluent(benzeue，toluene，chloroform，dichloromethanejetc)ToluenewaschosenasthediluentinthisstudyTemperaturehaslittleeffectondistributionratioofextractionWhileconcentractionofsalting—outag

5、entwasincreased，thedistributionratiocouldberapidlyimprovedTherelationshipbetweenthelogarithmofdistributionratioandthelogarithmofextractantconcentractionislinearitsslopewasnotan_integeraboutl，6Theremightbetwo(ormore)extra

6、ctioncomplexes[U02N03CBMPPTandU02(CBMPPT)2]3ThesynergisticextractionofU(Ⅵ)byHCBMPPTTOPO—Toluene—HN03systemandHBmPTTOPO—Toluene—HN03systemwasstudiedTheresultshowsthattwosynergisticsystemshassynergisticeffectandtheirextrac

7、tionabilitiesare：HCBMPPTHBMPPTTheextractionmechanismoftwosynergisticsystems1iketheextractionofU(VI)withHCBMPPTalone，mightconsistoftwo(ormore)extractioncomplexesfU02N03CBMPPTTOPO、UOffCBMPPT)zTOPO；U02N03BMPPTTOPO、U02(BMPPT

8、)2TOPO)4ThesynergisticextractionofU(VI)withHCBMPPBl’BPToIuene—HN03systemwasstudiedTheresultshowsthatthesynergisticsystemshasastrongsynergisticeffectandtheextractionmechanismmightformtwo(ormore)extractioncomplexes(U02N03C