从洗油中分离和精制β-甲基萘的新工艺-豆柴文库

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从洗油中分离和精制β-甲基萘的新工艺
Title:ANovelProcessforSeparationandRefinementofβ-MethylnaphthalenefromWashOil
Abstract:
Theseparationandrefinementofβ-methylnaphthalenefromwashoilisacrucialstepintheproductionofhigh-qualitychemicalsandfuels.Thispaperpresentsanovelprocessfortheefficientextractionandpurificationofβ-methylnaphthalene,aimingtoimprovetheoverallyieldandqualityofthedesiredproduct.Theproposedmethodcombinesaseriesoftechniques,includingselectivesolventextraction,fractionaldistillation,andadvancedpurificationmethods.Experimentalresultsdemonstratetheeffectivenessofthenewprocess,providingafoundationforindustrial-scaleproduction.
Introduction:
Washoilisabyproductgeneratedduringthedistillationofcoaltarandcoaltarpitch.Itcontainsvariousaromatichydrocarbons,includingβ-methylnaphthalene.β-Methylnaphthaleneisavaluableintermediateusedintheproductionofdyes,pharmaceuticals,syntheticresins,andhigh-energydensityfuels.However,thepresenceofimpuritiesinwashoilhinderstheeffectiveextractionandpurificationofβ-methylnaphthalene.Traditionalseparationprocesses,suchasdistillationandsolventextraction,havelimitationsconcerningselectivity,yield,andpurificationefficiency.Therefore,thereisaneedforanovelprocessthatovercomesthesechallengesandimprovestheseparationandrefinementofβ-methylnaphthalene.
Methods:
1.SelectiveSolventExtraction:Inthisstep,asuitablesolventisusedtoselectivelyextractβ-methylnaphthalenefromwashoil.Thesolventshouldhaveahighaffinityforβ-methylnaphthalenewhileexhibitinglowsolubilityforimpuritiespresentinwashoil.Furthermore,thesolventshouldhaveaboilingpointsignificantlylowerthanβ-methylnaphthalenetofacilitatethesubsequentseparation.
2.FractionalDistillation:Theextractedsolutionissubjectedtofractionaldistillationtoseparateβ-methylnaphthalenefromthesolvent.Thefractionaldistillationprocesseffectivelyseparatesthedesiredcompoundfromthesolventbyutilizingtheirdifferentboilingpoints.Beta-methylnaphthalenehasaboilingpointofapproximately245°C,whilethesolventshouldhaveaboilingpointbelowthistemperatur