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英语翻译forHPLCwasusedasreactionmedium(J.T.Baker,99.99%)andH2O230%w/w(Merck)wasusedfordecompositiontests,whileanalysesusedpotassiumiodide(Sigma-Aldrich),Hydra-nal-Composite2(Fluka),drymethanolforKFT(Fluka),aceticacid(S
 更新时间:2024-04-20 08:06:41
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问题描述:

英语翻译

forHPLCwasusedasreactionmedium(J.T.Baker,99.99%)

andH2O230%w/w(Merck)wasusedfordecompositiontests,

whileanalysesusedpotassiumiodide(Sigma-Aldrich),Hydra-

nal-Composite2(Fluka),drymethanolforKFT(Fluka),acetic

acid(Sigma-Aldrich),sodiumthiosulfatepenta-hydrate(99.5%,

Sigma-Aldrich),starch(Sigma-Aldrich),andpotassiumdichro-

mate(RiedeldeHaen).Catalysthasbeenpreparedasalready¨

14reportedandpre-reducedinsitubeforeuse.Preliminarytests

ofH2O2decompositionwerecarriedouttoascertainthatthe

supportalonedoesnotdecomposeH2O2.Weusedpurecalcined

sulfatedceriaat20°C,1barfor5h.14

ReactorSetupfortheExperiments.Acocurrent,downflow

TBRwasdeveloped.Inadditiontothemotivationsalready

mentioned,theTBRallowsshortliquidresidencetimeif

requiredforselectivity.Itisasteady-statereactor,sothat

chemicalanalysishasnolimitationonthesampledquantityand

doesnotaffectthereactoroperation.

Theexperimentalreactorsetupisshownschematicallyin

Figure1.ThereactorismadeofAISI316stainlesssteel,30

cmlong,1.5cmI.D.,andinternallylinedwithTeflon(1.15cm

finalI.D.)topreventH2O2decompositionduetoaccessibleFe3+

ions.Thereactorcanaccommodateacatalystbedupto20cm

long.Anexternalchiller(GrantLTD6G)allowsforworking

temperaturesbetween-20and60°C.Threemassflow

controllers(MFC;Brooks5850series)areusedtoindependently

feedthegases:N2,CO2/H297.5/2.5%,andO2(AGAgas).MFC

havebeencalibratedonactualmassflow;volumetricflowrates

reportedintheFiguresarecalculatedwithmixturedensities

陈沫回答:
   高效液相色谱法作为反应介质(最难贝克,99.99%)和过氧化氢30%w/w(默克公司)是用于分解测试,在分析使用碘化钾(Sigma-Aldrich),九头蛇-nal-Composite2(丙烯酰胺)、干燥KFT(丙烯酰胺)甲醇...
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