負(fù)載型鋯鹽催化劑催化酯化反應(yīng)的研究

1、南京師范大學(xué)碩士學(xué)位論文負(fù)載型鋯鹽催化劑催化酯化反應(yīng)的研究姓名：傅鵬遠(yuǎn)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化學(xué)；物理化學(xué)指導(dǎo)教師：楊春20090522AbstractIIAbstract2ehoxyethanolacetate(EGEEA)isaexcellentsolventwhichhavedoublefunctionalgroupawiderangeofapplicationtributylcitrate(TBC)isoneofthemost

2、imptantplasticizingagentsthebothproductsaresynthesizedbyconcentratedsulfuricacidcatalyst.Howevertheconcentratedsulfuricacidhasmanydisadvantagessuchasequipmentcrosionenvironmentalpollutionmanysidereactionsdifficultiesinse

3、parationoftheproductsonewaytosolvetheseproblemsistousethesolidacidcatalystinplaceofconcentratedsulfuricacid.Inthisthesisaseriesofsupptedzirconiumsulfatecatalystswerepreparedbyimpregnationwereusedinthesynthesisof2ehoxyeth

4、anolacetate(EGEEA)tributylcitrate(TBC).Thecatalystswereacterizedbyinfraredspectroscopy(FTIR)Xraydiffraction(XRD)N2adsptiondesptionxrayenergydispersivespectrometry(EDS)theproductsweretestedbyinfraredspectroscopy(FTIR)refr

5、activeindexmethodgaschromatography(GC)theaciditystructurecompositionofcatalysttotheeffectofivityrecycleperfmancewerestudiedthetechnologicalparameterswereoptimizedtheinfluencesofsynthesisconditionssuchasdifferentsupptthel

6、oadingthequantityofcatalystreactiontemperaturethemoleratioofreactantsonesterificationwerestudiedthebesttechnologyfsynthesiswasobtained.ItwasfoundthatthebestsupptswereACSBA15zirconiumsulfatecouldwelldispersedonthesupptthe

7、structureofsupptwasnotaffected.Thecatalysthasthemediumacidstrength(11.4≤H0≤8.2)ensureinthetworeactionstheivitytoproductwas100%.Underthesuitableconditions2ehoxyethanolacetatetributylcitrateyieldcouldarriveat98~99%.Thecata

8、lystwasrepeatedlyused.Becausehasovercometheconcentratedsulfuricacidcatalystthehomogeneouscatalystaswellasothersolidacidcatalystinsufficiencyinadditionhastheacteristicwhichthehighactivitythehighivitymayrepeateuseweprepare