催化和非催化方法氧化苯乙烯制苯甲醛.pdf

1、學(xué)位論文獨創(chuàng)性聲明本人承諾：所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下所取得的研究成果。論文中除特別加以標注和致謝的地方外，不包含他人和其他機構(gòu)已經(jīng)撰寫或發(fā)表過的研究成果，其他同志的研究成果對本人的啟示和所提供的幫助，均已在論文中做了明確的聲明并表示謝意。學(xué)位論文作者簽名：數(shù)絲巳斂學(xué)位論文版權(quán)的使用授權(quán)書本學(xué)位論文作者完全了解遼寧師范大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定，及學(xué)校有權(quán)保留并向國家有關(guān)部門或機構(gòu)送交復(fù)印件或磁盤，允許論文被查閱和借閱。本

2、文授權(quán)遼寧師范大學(xué)，可以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫并進行檢索，可以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文，并且本人電子文檔的內(nèi)容和紙質(zhì)論文的內(nèi)容相一致。保密的學(xué)位論文在解密后使用本授權(quán)書。學(xué)位論文作者簽名：弛紐指導(dǎo)教師簽名：蠶王星圭簽名日期：年月日催化和非催化方法氧化苯乙烯制苯甲醛CatalyticandnoncatalyticforoxidationofstyrenetobenzaldehydeAbstract

3、Asan_importantchemicalproductbenzaldehydeiSwidelyusedinthefieldsofbomindustrialproductionanddailylife11lerearetwomethodsemployedinthiswork，fortheresearchoftheoxidationofstyreneusinghydrogenperoxideasoxidant：OneiStheprepa

4、rationofbenzaldehydebyoxidizingstyrenecatalyzedbyptoluenesulfuricacid(pTSA)，acceleratedbytheactivatedcarbonintroducedTheotheristhepreparationofbenzaldehydebyoxidizingstyreneintheCH3COOH／H202systemBothofthesetwomethodshav

5、ehighconversionratesThemainresearchresultsareasfollows：1Acceleratedbyactivatedcarbon，thepreparationofbenzaldehydebyselectivelyoxidizingstyreneinthepTSA／H202systemhasbeenstudied111ehoneycombactivatedcarbon(RAC)usedintheex

6、perimentiSobtainedaftercommercialactivatedcarbonbeingpretreatedbynitricacidIthasbeenfoundduringtheexperimentsthattheconversionrateofstyreneislow(l0％)whensimplyapplyingpTSA／H202systemorHAC／H202systemHowever，theconversionr

7、ateofstyreneishigherthan80％whenusepTSAandHACatthesametimeAnobvioussynergisticeffecthasbeenobservedAfurtherstudyhasbeenmadeontheeffectsoftheaddedamountofpTSAandHAC，thereactiontemperature，theamount—ofsubstanceratioofH202an

8、dstyrene，andthereactiontimeofthissynergisticsystemontheactivityandselectivityoftheoxidationofstyrenetObenzaldehydecatalyzedbythissynergisticsystemTheoptimalconditionisasfollows：eachofHACandpTSAisO059，acetonitrile5mL，styr

9、eneO5mL，n(H202)：n(styrene)iSequalto35reactingfor10hat60℃，theconversionrateofstyreneiS865％，theselectivityofbenzaldehydeis801％AfterHAChasbeenheattreatedat800℃for6hunderH2／ArorN2atmosphere，theeffectofthechangeoftheoxygen—co

10、ntaininggroupsonthesurfaceofHAConthissynergisticsystemhasbeenstudiedThestructureofHAChasntbeenchangedafterheattreatmentCompared、析ththeoriginalHACtheamountoftheoxygencontaininggroupson恤esurfaceoftheheattreatedHACdecreases

11、theoxygencontaininggroupsaffecttheconversionrateandselectivityofthereactionAdditionally，sulfonicacidgroup(S03H)hasbeenintroducedintoHACComparedwiththeoriginalHACHACS03Hshowshigherconversionrateofstyreneandselectivityofbe