鎂鹽潤滑油清凈劑合成機理的初步研究.pdf

1、西安石油大學碩士學位論文鎂鹽潤滑油清凈劑合成機理的初步研究姓名：郝平申請學位級別：碩士專業(yè)：化學工程指導教師：黃風林顧林國20081008英文摘要Subject：PreliminaryStudyontheMechanismofPreparationofMagnesiumSaltLubricatingOilDetergentsSpeciality：ChemicalenginName：HaoPingInstructor：HuangFengl

2、in(signatureGuLinguo(signatureABS’l。RAC。I’WithhigherTBNandsimultaneouslykeepinglowerashcontent，strongerneutralizationcapabilitybetterantirustpropertygoodcompatibilitywithcalciumsaltdetergentsandhencelowerdosageofdetergen

3、ts，themagnesiumsaltdetergentshavebeendevelopingquicklyinrecentyearsBut，duetothemetallicityofmagnesiumisweakerthanthatofcalciumthemetalationprocesstopreparethemagnesiumdetergent，especiallythecarbonationprocessisverydiffic

4、ultandcomplexTodayalthoughmanypatentsconcerningthepreparationofmagnesiumsaltdetergentshavebeenpublished，themechanismiSstillnotclearTheprocesstoprepareoverbaseddetergentinvolvesaseriesofcomplexmultiphase(includinggaseousl

5、iquidandsolid)，physico—chemicalreactionUsingthepetroleumammoniumsulfonateandthemagnesiumoxideasrawmaterials，themechanismandmaininfluencingfactorsoftheprocesshavebeenstudiedThereareoptimumamountsofwaterandtheaddingofwater

6、shouldbeincarbonationstepAdditionallycarbonationisthekeystepduringthemanufacturingprocessoflubricatingoildetergents，sothemajorfactorsofcarbonationwereelaborated，including：carbonationtemperature，carbonationtime，stirringsp

7、eedandSOonTheresultsshowedthattheoverbased1ubricantdetergentcanbepreparedundertheconditions：40～50。C，reactiontime311fastermixingspeedWiththeosmoticreactionmechanismofintelligentmicroreactorthemajorfactorswereelaborated，si

8、multaneouslypointedoutthatthecarbonationreactiontemperature，time，speedofmechanicalstirringcallcontrolthesizeofreversemicelleandhencecontrolthecolloidalstructureandperformanceofcarbonatellano—particlesThroughthedeterminat

9、ionofTBN’theinfraredspectrumanalysisandFreezeEtchingElectronMicroscopytheresultsshowthatproductscontainingallaverageofabout40nmcarbonateparticlesTheprocessCanbewellunderstoodwiththeintelligentmicreactortheorysothatproduc