第1題1.Whichofthefollowingmethodsforpreparingcausticsodadoesnotbelongtoelectrolysis?

ADiaphragmelectrolysisBMercuryelectrolysisCCausticizingmethodD

Ionexchangemembraneelectrolysis第2題2.Thesodiumhydroxideofthebestqualityproducedbyelectrolysismethodis

A

IonicmembranemethodBDiaphragmmethodCMercuryprocess第3題3.WhichmethodofcausticsodaproductioniscurrentlyusedinChina?ACausticizingmethodB

MercuryelectrolysisCDiaphragmelectrolysiD

Ionexchangemembraneelectrolysi第4題4.ThespecificationofDF2806ionicmembraneproductsproducedbyShandongDongyueGroupisA

1.35mwidthB1.30mwidthC1.37mwidthD

1.40mwidth第5題1.Thetheoreticaldecompositionvoltageofdomesticoxygencathodecausticsodaelectrolyticcellcanbereducedbyabout1.2volts.Theproductionof1tcausticsodacanreducetheelectrolyticpowerconsumptionby850~900KW·h,andcansaveabout30%ormoreenergythanthetraditionalcausticsodaionicmembraneprocess.

第6題2.Theconcentrationofsodiumhydroxidepreparedbyionicmembranecausticsodaproductiontechnologycanreachmorethan40%.

第1題1.Atpresent,thescaleofthemainproductsofChlor-Alkalia(causticsodaandpolyvinylchloride)ofChinaisthefirstoftheworld.第2題2.Theconcentrationofsodiumhydroxidepreparedbyionicmembranecausticsodaproductiontechnologycanreachmorethan40%.第3題3.Chlor-AlkaliindustryinChinaissmallinscaleofsinglecompaniesandlowinindustryconcentration.Subtask3.CharacteristicsandProspectofChlor-alkaliIndustryinChina第1題1.WhichofthefollowingisnotabasicfeatureoftheChlor-Alkaliindustry?ARawmaterialsareeasytogetBLowenergyconsumptionCCorrosionandpollutionareseriousDBalancebetweenchlorineandalkali第2題1.TheChlor-Alkaliindustryisfacedwiththeproblemofthebalancebetweencausticsodaandchlorinegas.TheChineseChlor-Alkaliindustryisinanimbalanceperiodof“l(fā)ackofalkalineandtoomuchchlorine”.第3題2.TheChlor-Alkaliindustrydoesnotinvolvethepreventionofcorrosionandthedisposalofthreekindsofwastes.Subtask4.PropertiesandApplicationsofChlor-AlkaliProducts第1題1.WhichofthefollowingchemicalrawmaterialsisthemainproductoftheAHydrochloricacidBSulphuricacidCSodaashDCausticsoda第2題2.Whatkindofsubstanceintheairdoescausticsodareactwithatroomtemperature?AOxygenBNitrogenCCarbondioxideDWatervapor第3題3.WhichofthefollowingisnotamajorproductoftheChlor-Alkaliindustry?ACausticsodaBChlorinegasCHydrogenDSodaash第4題Theaqueoussolutionofcausticsodaisacidic.第5題Thecausticityofcausticsodaisstrong.第6題Chlorineisthelightestofallgases.第7題Hydrogengascanbefoundinlargeamountintheair.Subtask1KnowledgeofRawMaterials第1題Thesolubilityofsodiumchlorideinwater()withtemperatureincrease.AElevationBNodifferenceCAslightincrease第2題Thehigherthecontentofsodiumchlorideinsaltsolution,therelativedensityAThebiggerBNodifferenceCThesmaller第3題Theconductanceofbrine()withtemperatureandconcentrationincrease.ADecreasingBNodifferenceCElevationSubtask2Principleofbrineprimaryrefiningprocess第1題(

)isgenerallyusedtoremoveofchemicalimpuritiesinthecoarsebrinefromthesaltdissolvingbucket.AChemicalMethodBMechanicalmethodsCThecombinationofchemicalandmechanicalmethods第2題Therateatwhichcalciumcarbonateisformedis()whentheamountofsodiumcarbonateisaddedaccordingtothetheoreticalamountwhencarryoutbrinerefining.ASlowBQuickCQuiteslow第3題TheremovalofSO42-ionsinbrine,use()astherefiningpreparation.ANa2CO3BNaOHCHClDBaCl2第4題Themostcommonlyusedmethodofrefiningofcalciumandmagnesiumionsis(A)Acausticsoda-sodamethodBlime-sodamethodCLime-mirabilitemethod第5題Whichofthefollowingchemicalimpuritiesshouldberemovedinthetaskofbrinepurification?ACalciumionBMagnesiumionCSodiumionDChlorideionESulfateion正確答案：ABE第6題Increasingthesaltdissolutiontemperaturecanincreasethesaltdissolutionrateandthesaltsaturationlevel,sothesaltdissolutiondegreeshouldbeincreasedasfaraspossible.第7題Properincreaseinbrinetemperatureisbeneficialtorefiningandsettlingoperation.第8題Intheremovalofsulfateionsfrombrinebybariumsaltmethod,theamountofbariumchlorideaddedisusuallymorethanthetheoreticalamountinordertorapidlycompletethereactionbetweenbariumchlorideandsulfate.Subtask3ProcessandequipmentoffirstbrinerefiningHVMmembranefiltration第1題TheironfencearrangedatthetopofthesaltdissolvingbucketactsAPreventtheoutflowofsolidsaltBRemovingfloatingimpuritiessuchasropes,grass,etc.CPreventingtheflowdeviationofcoarsebrine.DIncreasingtheconcentrationofsodiumchloride第2題TheprocessmostcommonlyusedinfirstbrinerefiningisATraditionalfiltrationprocessBHVMmembranefiltrationprocessCCNfiltrationprocessDGoremembranefiltrationprocessSubtask4ProcessandEquipmentofMembraneMethod-FrozenDenitrification第1題Themembraneusedinthemembranemethod-frozendenitrificationprocessisthe____membrane.正確答案：:Nanofiltration第2題MembranedenitrificationprocessflowMembraneMethod-FrozenDenitrificationmainlyincludesfourcourses________________etc.正確答案：:lightbrinepretreatment正確答案：:Nanofiltrationmembraneconcentration正確答案：:concentrationliquidrefrigeration正確答案：:centrifugalseparation第3題Theactivecarbonfilterismainlyusedtoremove____,____and____.正確答案：:ironoxide正確答案：:macromolecule正確答案：:residualchlorineSubtask1PrincipleofSecondBrineRefiningProcess第1題Achelatingresinisanion-exchangeresinthatadsorbs()toformaring-likechelate.ACationsBAnionCMetalIonsDSSSubtask2Processflowandequipmentforsecondbrinerefining第1題TheimpuritiesthatcannotbeselectedforadsorptionbychelatingresinareACa2+BMg2+CSr2+DSS第2題Thequalifiedfirstbrineisheatedto()bythebrinepreheaterbeforeitcanbesenttothetopoftheresincolumnA60～65℃B30～35℃C50～55℃D40～45℃第3題TheCa2+andMg2+inbrineareadsorbedwhenthebrineflowsthroughthechelatingresincolumnand()reactionoccurs.AIonExchangeBOxidationandReductionCReplacementDNeutralization第4題Intheregenerationcourseofchelatingresincolumn,HClisaddedtoconvertthe"Ca"typeto"H"type.第5題Thechelatingresincanberecycled.

第6題Aftersecondbrinerefining,thecontentofsulfaterootdecreasedandthecontentofcalciumandmagnesiumionincreased.第7題Thechelatingresinhasafixedcationicgroup.第8題Freechlorinecanpermanentlypoisonchelatingresin.Task1.PrincipleofIonicMembraneElectrolysis第1題Inelectrolysisofsaturatedbrine,theanodeproduces()AChlorinegasBHydrogenCOxygenDSodiumhydroxide第2題InadditiontoNaOH,thereis()thematerialproducedbythecathodeoftheelectrolyticcell.ACl2BH2

CHClDCO2第3題Thetotalamountofcalciumandmagnesiumionsinthesecondaryrefinedbrineenteringtheionicmembraneelectrolyticcellshallsatisfy()A≤20μg/LB≤30μg/LC≤20mg/LD≤30mg/L第4題Theconcentrationoflyeintheionicmembraneinletisregulatedbyaddingtapwater.第5題Duringelectrolysis,hydrogengascomesoutneartheanodeandchlorinegascomesoutnearthecathode.第6題Duringelectrolysis,theelectrolyticcellisconnectedwithalternatingcurrent.第7題Chlorinegasisproducedattheanodeandhydrogengasandsodiumhydroxideareproducedatthecathodewhenelectrolyzingsaturatedsaltsolution.第8題Electrolysisofsaltsolutionbyion-exchangemembranemeansthattheelectrolyticcellisseparatedintoananodechamberandacathodechamberbycation

exchangemembranetosupplypurewatertotheanodechamber.Saltwaterissuppliedtothecathodechamberandelectrolyzedbydirectcurrent.Subtask1.IonicMembraneElectrolyticCell第1題Thetypeofionicmembraneelectriccellcangenerallybedividedintotwotypesoftroughs:()and()AMonopolarcellandbipolarcellBVerticalcellandhorizontalcellCGraphiteanodeTroughandmetalanodeTroughDSerialcellandparallelcell第2題Monopolarcelloperationischaracterizedby().ALowvoltage,highcurrentBLowcurrent,highvoltageCLowvoltage,lowcurrentDHighvoltageandhighcurrent第3題Bipolarcelloperationischaracterizedby().ALowvoltage,highcurrentBLowcurrent,highvoltageCLowcurrent,lowvoltageDHighcurrent,highvoltage第4題Monopolartypeionicmembraneelectrolyticcellreferstotwokindsofelectrodesononeunittrough,i.e.,theunittroughisaunittroughwithintegratedcathodeandanode.第5題Thegreatertheeffectiveareaoftheunittrough,thehighertheutilizationratioofthemembrane.第6題Atpresent,theelectrolyticcellusedinChlor-Alkaliplantiszeropolardistancemembraneelectrolyticcell.Task3.AnalysetheProcessofIonicMembraneElectrolysis第1題TheanodeNaClconcentrationiscontrolledat()inordertoavoidpermanentdamagetothemembraneandincreaseofthetroughvoltage.A140～160g/LB200～220g/LC220～240g/LD305±5g/L第2題Theanodicsolutionofion-exchangemembranetroughshouldnotaddtoomuchacidandshouldbeuniform,anditshouldbestrictlycontrolledthatthepHvalueofanodeliquidshouldnotbelowerthan().A1B2C3D4第3題Atpresent,thecontentofNaOHinionicmembraneis().A32%-35%B20%-25%C35%-40%D15%-20%第4題Thetemperatureoftheelectrolyticcellmustnotbebelow()℃,otherwisethecurrentefficiencyofthetroughwillfallirreversibly.A50B55C60D65第5題Whenthecontentofsulfateinbrineexceeds()g/L,thecurrentefficiencydecreasesobviously.A2B3C4D5第6題Thecathodechamberpressureishigherthantheanodechamberpressureintheionicmembraneelectrolyticcell,whetherrunningorstopping,becausetheionicmembraneisclosetotheanode.第7題Increasingthetemperatureoftheion-exchangemembranetroughcanreducethevoltageoftheelectrolyticcell,sothetemperatureoftheinletbrinemustbecontrolled.

Subtask1.PrincipleandCharacteristicsofIonicMembraneLiquidAlkaliEvaporation第1題Inanevaporationsystem,thewatertemperatureofanatmosphericcondenserisgenerallycontrolledat().A30～35℃B35～40℃C40～45℃D30～40℃第2題Strengtheningthetemperatureinsulationofequipmentandtubesisanimportantmeasuretoreduce()intheevaporationdevice.AHeatlossBSteamconsumptionCWaterconsumptionDEquipmentloss第3題ForAforcedcirculationevaporator,thecirculatingtubeandtheheatingchambershallbeusedasthe()tubeofthepump.AInletandoutletBOutletandInletCInletandInletDOutletandOutlet第4題Inthecourseofalkalievaporation,ifthevacuumdegreeoffinaleffectorconcentratedeffectiscontrolledhigher,thesteamconsumptionofevaporationcanbereduced.第5題ThehigherAlkaliconcentrationnotonlyincreasestheevaporationsteamconsumption,butalsoaggravatesthecorrosionoflyetoequipment.Subtask1.PrincipleandCharacteristicsOfSolidCausticSodaProductionByIonicMembraneMethod第1題

Inevaporationoperations,steamfromasolutioniscalledASteamgenerationBSecondarysteamCExtrasteamDAdditionalsteam第2題Themainwaytoincreasethestrengthofevaporatoristoincrease

AHeattransfertemperaturedifferenceBHeatingsteampressureC

HeattransfercoefficientDHeattransferarea第3題Temperaturedifferenceloss(

)duetomoreeffectinevaporationunit.ALessBThebiggerCNodifferenceDNotnecessarily第4題Thepurposeofmulti-effectevaporationistoimprove()

AConcentrationofcompletionfluidBEconomicaldegreeofheatingsteamCProductioncapacityDHeatingtemperature第5題Inevaporationoperation,ifthesolutionboilsandevaporatesunder(A),theboilingpointofthesolutioncanbereducedandtheeffectivetemperaturedifferenceoftheevaporatorcanbeincreased.

ADecompressionBAtmosphericpressureCPressurizeD

Itdoesn'tmatter4.2.2Continuousfallingmembraneconcentrationsolidcausticsodaprocess第1題

Inthemembraneevaporationprocess,whenthealkalisystemistemporarilystopped,themoltensalttemperatureshallbemaintainedat(

)℃andcirculate.A450B400C350D300第2題Theheattransfercoefficientoftheevaporatorheatingchamberismainlydependenton(

)

A

InnermembraneheattransfercoefficientBOutermembraneheattransfercoefficientCHeatconductioncoefficientDSystemparameters第3題Theliquidlevelofthefallingmembraneevaporatorshallbecontrolledat()

A40%-50%B45%-50%C50%-60%D50%-65%第4題

Thegreatertheevaporationcapacityoftheevaporatoris,thegreatertheevaporationintensityis第5題TheevaporationeffectmeansthenumberofevaporatorsintheevaporationdeviceSubtask1ChlorineTreatmentSystem第1題Chlorineisayellow-green,smotheringgasatroomtemperatureandpressureandislighterthanair.第2題Chlorinecanbesolubleinwater,andiseasytodissolveinorganicsolvents,aswellasdifficulttodissolveinsaturatedbrine.第3題

Theaimofchlorinegastreatmentistoremovemoisturefromwetchlorinegas.Themoisturecontentofchlorinegasshouldbelessthan5%.第4題Chlorinegascanformliquidchlorineathighpressureandhightemperature.第5題Thetemperatureofchlorinegasprecipitatedfromtheanodeoftheelectrolyticcellcanreachabove90℃,accompaniedbysaturatedwatervaporandimpuritiessuchassaltspray.Subtask2ChlorineTreatmentTechnology第1題ThemaintaskofthechlorinetreatmentsystemisAChlorinegascoolingBWetchlorinedryingCCompressandtransportthedriedchlorinegastotheuserD

Stabilizeandregulatethepressureofanodechamberinelectrolyticcell,ensuretheworkingconditionsofelectrolysisprocessandchlorinegaspurityafterdrying.正確答案：ABCD第2題ChlorinegascoolingmethodsareADirectcoolingmethodBIndirectcoolingmethodCDirect+indirectcoolingmethodDChlorine-watercirculatingcoolingmethod正確答案：ABD第3題

ThereasonwhychlorinecanbedriedwithconcentratedsulfuricacidisAChemicalreactionwithchlorinegasBThesolubilityofchlorinegasinsulfuricacidissmallCConcentratedsulfuricacidhasastrongwaterabsorptionDCheapandeasytogetEConcentratedsulfuricaciddoesnotcorrodesteelequipmentFDilutesulfuricacidcanberecycled正確答案：BCDEF第4題Thehighertheconcentrationofsulfuricacid,thelowerthetemperature,thehigherthedryingcapacityofsulfuricacid,soyoucandrychlorinegaswithconcentratedsulfuricacidat0℃.第5題Theblisterdryingcolumnconsistsofthelowerfillersectionandtheuppersieveplatesection.Subtask3ProcessFlowofChlorineGasTreatment第1題Inthechlorinegastreatmentprocess,weshoulddryfirstandthencooloff.第2題Theprocessflowofchlorinegastreatmentmainlyincludesfiveparts:Coolinganddefoaming,dryinganddehydrating,defoggingandpurifying,compressingandconveying,andaccidentchlorinetreatment.Subtask1PrincipleofHydrogenTreatmentProcess第1題Hydrogengasiscolorless,odorless,flammableandexplosivegasandislighterthanairatnormaltemperatureandpressure.第2題Therawmaterialinthissectionishydrogengasfromanelectrolyticcell,containingsaturatedwatervaporandacidmist.第3題Whenthevolumeofhydrogengasintheairaccountsfor4.1%to74.2%ofthemixedvolume,theignitionwillproduceanexplosion,andthevolumefractionrangeiscalledtheexplosionlimit.第4題Whenhydrogenreactswithoxygen,itreleasesalargeamountofheat,whichisappliedforweldingorcuttingmetalandmakinghigh-energyfuel.第5題Usetheoxidationofhydrogengastoproduceimportantmetals.Subtask2Hydrogentreatmentprocessflow第1題Therearethreetypicalprocessflowsforhydrogengastreatmentindomesticionicmembranecausticsodamanufacturedevice:①Coolingandcompressing;②Cooling,compressingandcooling;③Cooling,compressinganddrying(ordryingaftercooling).第2題

Nonitrogenreplacementsystemisrequiredforhydrogengassystem.第3題TheRootsblowerisacentrifugalblower,whichusuallyuseshorizontaltypethroughtheactionofsynchronousgearsinsidetheblower.第4題Thestructureofwaterringpumpissimple,whichismainlycomposedofmachinebodyandshaftseal.第5題Inordertoensurethestabilityofthepressureofthehydrogensystem,thehydrogengasisadjustedbysettingtherefluxandthehydrogenissettobeventedsafely.Subtask1Thepurpose,methodandprincipleofliquidchlorineproduction第1題ThepurposeofchlorineliquefactionisAPreparationofpurechlorinegasBEasytostoreandtransportCForbalancingproductionDPreparationofsodiumhypochlorite正確答案：ABC第2題TheprincipleofchlorineliquefactionisACompressionofgasBReducetemperatureC

RaisetemperatureDDrying正確答案：AB第3題Chlorinecanbecooleddirectlywithammonia.第4題Thelimitofliquefactionefficiencyistoensurethatliquidchlorinetailgascontainsnomorethan4%hydrogen,otherwisethereisariskofexplosion.Thismakestheliquefactionefficiencygenerallycontrolledatabout90%andwillnotbefurtherincreased.第5題Therearethreemainmethodsofproducingliquidchlorineinindustry:Hightemperatureandhighpressuremethod,mediumtemperatureandmediumpressuremethod,lowtemperatureandlowpressuremethod.Subtask2LiquidChlorineProductionProcessFlow第1題()isusuallyusedtoremoveofwatervaporfromchlorinegas.A3l％HClB30％NaOHC98％H2SO4D15%HNO3第2題Whenareciprocatingcompressorisused,drychlorinegaspassesthrougha()columnbecauseitcontainsasmallamountofsolidmaterialsuchassodiumchloride,sodiumsulfateandferricchloride,andmaycontainasmallamountoforganicmatterAAbsorptionBDistillationCWashingCooling第3題Hydrogencontentofliquidchlorinetailgasshallbestrictlycontrollednottoexceed()topreventexplosion.A10%B4%C5%D8%第4題Thetemperaturedifferencebetweenliquidchlorineliquefactiontemperatureandrefrigerantshouldnotbetoolarge.Thetemperaturedifferenceislimitedto().Theincreaseoftemperaturedifferencewillinevitablycausetheincreaseincoolingenergyconsumption.A5℃B15℃C10℃D8℃第5題Chlorinegasliquefieristhemainequipmentofchlorinegasliquefaction,whichmainlyconsistsofthreeindependentparts()andtheyconstituteacompletesetofsystem.AScrewCompressionCondenserUnitBChlorinegasliquefierCGas-liquidSeparatorofChlorineDWater-ringVacuumPump正確答案：ABCSubtask1Propertiesandsynthesisprincipleofhydrogenchloride第1題Thecombustionflameinthehydrogenchloridesynthesisfurnaceshallbemaintainedincyanwhiteinnormaloperation.第2題Whenthehydrogenchloridesynthesisfurnaceisturnedon,thepurityofhydrogengasinhydrogenchloridesynthesisfurnaceshouldbegreaterthan80%.Oxygencontentshouldbelessthan4%.第3題Hydrogencontentinchlorinegasmustbelessthan10%innormalproductionofhydrogenchloridesynthesisfurnace.第4題Thefactorsaffectingthesynthesisaretemperature,moisture,catalyst,hydrogengaspurity,chlorinegaspurityandmolecularratioofchlorinetohydrogen.第5題Iftheflameturnsredinthesynthesisfurnace,weshouldturnontheflowofchlorinegas.第6題Weshouldfirstopenthechlorinegasvalveandthenopenthehydrogengasvalve,thenigniteandstartthesynthesisfurnacewhenthesynthesisfurnaceisturnedon.第7題Whenthefurnaceisturnedoff,ammoniagasshouldbestoppedfirstandchlorinegasshouldbestoppedlater.第8題Theratioofchlorinegastohydrogengasinthesynthesisfurnaceis1:1.05~1:1.10isthebest.Subtask2PropertiesandProductionPrincipleofHigh-purityHydrochloricAcid第1題WashoffrustwithHCl,becauseofhydrochloric’s().AAcidityBOxidizabilityCReducibilityDAlkalinity第2題31%Hydrochloricacidcanbepackedwith().AIronBucketBWoodenBucketCCeramicBucketDPlasticBucket第3題WashoffrustwithHCl,becauseofhydrochloric’s().A

AcidityBOxidizabilityC

ReducibilityDAlkalinity第4題Highpurityhydrochloricacidisahighlyirritating,colorless,transparentliquid.第5題Inthecausticsodaproductionabroad,thequalityrequirementsofhighpurityhydrochloricacidvarygreatly,especiallyformagnesiumcontent.Subtask1Processflowforproductionofhydrogenchlorideandhighpurityhydrochloricacid.第1題Theconcentrationofhydrochloricacidcanbeincreasedbydecreasingthewaterabsorptiontemperatureofhydrochloricacid.第2題Ifitisfoundthattheabsorptionrateofabsorptioncolumnislow,theamountofabsorbedwatershouldbeincreased.第3題Theamountofabsorbedwatershouldbeincreasedwhenthetemperatureofabsorptioncolumnincreasesandtheconcentrationofaciddecreases.第4題Thehydrogengasflowshouldbeadjustedimmediatelywhenthechlorinegasflowisfoundtodecrease.第5題Whenthetemperatureinthesynthesisfurnacesuddenlyincreasesgreatly,theamountofgasenteringthefurnaceshouldbereducedimmediately.第6題Theanalysisresultsshowthatthechlorine-hydrogenratioshouldbeadjustedwhenthechlorinecontentintheoutletgasofthesynthesisfurnaceistoolarge.7.1.1Knowledge1:ThePropertiesandPretreatmentofAcetyleneRawMaterialsandProducts第1題Thepressuredifferentialgaugeforacetylenegasshoulduse()asisolationfluid.

ASaturatedsaltwaterBAcetoneCEthanolDPurewater第2題Acetyleneunitsarenotpermittedtousecopper-basedequipment,valves,fittingsandtoolsbecauseacetyleneandcopperformacetylenecopperanditbelongsto(

).

ABrickredexplosivesBSilverWhiteExplosivesCGray-blackExplosivesDBrownishyellowexplosive第3題Thefollowingdescriptionofalkynes,whichiscorrect:(

)

AUnsaturatedchainhydrocarboncontainingcarbon-carbontriplebondsinmoleculesBAllthecarbonatomsinthealkynemoleculeareinthesamelineCAlkynesarepronetoadditionreaction,alsopronetosubstitutionreaction.

DAcetylenecandiscolorbrominewater,butnotacidpotassiumpermanganatesolution.

第4題Examineacetylenegaswithsilvernitratetestpaper.Ifthepaperturnsyellow,itshowsthatthephosphorusimpurityexceedsthestandardandifblack,itshowsthatthesulfurimpurityexceedsthestandard.

第5題Theexplosionriskcanbeincreasedbymixingacertainproportionofwatervaporintoacetylenegas.

7.1.2KnowledgePoint2AcetyleneGasProductionPrincipleandCleanliness第1題

Inthepurificationcourseofacetylenegas,itisproneto()iftheeffectivechlorineofsodiumhypochloriteexceedsthestandard.

AChloroacetyleneBVinylchlorideCChloroethaneDDichloroethane第2題Theincreaseofsodiumcarbonatecontentinneutralizationcolumnlyeismainly(

).

ASelf-decompositionofsodiumhydroxideBSodiumhydroxideabsorbscarbondioxideCSodiumcarbonateisfoundinacetylenegasDSodiumcarbonateisfoundinrawliquid第3題

Incompleteremovalofimpuritiessuchassulfurandphosphorusinacetylenegasmayresultin(

).

AIncreaseintheloadoftheneutralizationcolumn.

BVinylChlorideCatalystPoisoningCIncreasedimpurityinPolyvinylChlorideDDecreasingproductionofacetylene第4題ThepHvalueofsodiumhypochloritehadnoeffectonthecleaningeffect.

第5題Thehigherthegeneratorreactiontemperature,thebetter.

第6題

Anexhausttubeisarrangedatthetopofthegeneratoroverflowtubetopreventsiphonphenomenon.

第7題Themorepartitionintheacetylenegenerator,themorecompletethehydrolysisofcalciumcarbideandthelessdischargeofrawcalciumcarbide第8題Thecontrolwaterratioisdifferentofthegeneratorduetothedifferentreactiontemperatureunderthesamecapacity.

7.2Task2.ProcessforMakingVinylChlorideMonomerByCalciumCarbideAcetyleneMethod第1題Single-choicequestionsAChemicalreactionBHeterogeneousChemicalReactionsCHomogeneouschemicalreactionDPhysicalresponse第2題Themainreasonforthepoorsynthesisconversionrateis(

).

AHighcoolingwatertemperatureBExcessivewatercirculationC

CatalystintothelatestageDConverterresistanceishigh第3題Themainreasonfortheincreaseofthepressureandthedecreaseoftheflowofthesynthesissystemis(

).

AIncreasedPurificationResistanceB

PreheaterleakageC

ConverterleakageDExcessiveHCl

第4題Whenmercurychloride,anewcatalyst,isloadedintotheconvertertubeanddried,thatis,through(

).

AAcetyleneGasB

NitrogenCHydrogenChlorideGasDMixedgas第5題

Removalofheat()fromtailgasadsorptionbydistillation.ACoolingthroughairB

NoneedtoremoveCCoolingwaterispassedbetweentheadsorbertubesDEnteringcondenserforcooling第6題Whyshouldaninletsuctionbepreventedduringtheoperationofasinglecompressor?

A

EasilypumpedintotheairandanexplosionoccurredBAvoidreducingthesuctioncapacityofthecompressor.

CPreventionofliquidhammeraccidentsDPreventexcessivepressure第7題Distillationsystem(

)incaseofemergencyshutdownAincreaseofpressure.

B

KeeppressureC

Itdoesn'tmatterDReducingofPressure第8題Thereasonwhytheliquidlevelofthelowboilingtowerkettleisunstableis(

).

AThehotwatertemperatureofthetowerkettleishighBHighcolumnfeedingautomaticcontrolvalveorbypassvalveisnotstrictC

ThetemperatureofthecolumntopbackflowcondenseristoolowD

Intra-columnpressureistoolow第9題

Inthedistillationoperation,ifthelowboilingtowerkettlecirculatinghotwaterissuddenlyinterrupted,thefeedingshouldbestoppedimmediately.第10題Ifthereistoomuchinertgasinthedistillationsystem,itshouldbedischargedimmediately.

第11題Pressacidatregularintervalsformixeddehydration,whenthesmallacidtroughisfull,pressesacidwiththecompressedairtothelargeacidtrough.

第12題Whenthesynthesissystemisstopped,theacetylenemastervalveandhydrogenchloridemastervalveshallbeclosed,andtheothersarenotneededtobeclosed.

第13題Forconverters,whetherfornewlymanufacturedormaintained,airtightnesstestsshallbecarriedoutbeforeinstallation.

第14題Graphiteheatex-changersareequipmentforcoolingorheatinghydrogenchlorideorothercorrosivegases.

第15題

Ifthereactiontemperatureoftheconverterexceeds180℃,itcandestroythecrystallizationsurfaceofthecatalyst,andcausethecatalysttoloseitsactivity.Thesublimationbecomesmoreandthelifeisreduced.

第16題Whenhydrogenchloridepurityisqualifiedandthepressurerises,openthehydrogenchloridemastervalve,andstrictlycontroltheminimumflow.Notifypurificationsystemandemptyafterpurificationandabsorption.第17題Theconverterisalargetubeheatex-changer,whichcontainsalkalinehotwaterinthetubeandvinylchloridegasinthegapbetweentubes.

Subtask1UnderstandingofPolyvinylchloride第1題Polyvinylchlorideisonetypeof()APolymerCompoun