颜料红177的制备工艺分析-analysis of preparation technology of pigment red 177.docx

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2018-06-03 发布于上海
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颜料红177的制备工艺分析-analysis of preparation technology of pigment red 177.docx

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颜料红177的制备工艺分析-analysis of preparation technology of pigment red 177

4.ThesynthesisofPR177wasthedesulfonationofDASinionicliquidsinsteadofH2SO4.Theinfluencesoftheacidity,dosageandrecycleofionicliquids,reactiontime,reactiontemperatureontheyieldofPR177werestudied.TheacidityofionicliquidssatisfiedtheacidityrequirementofdesulfonationoftheDAS.Therecycleofionicliquidswasconvenient,anditreducedthedischargeofwastewater.Thesynthesistechnologywasenvironmentallyfriendly.Theoptimalreactionconditionswereasfollows:thedosageofDASand[BSMIm]OTFwere2.0gand10gseparately,thereactiontemperaturewas150℃,thereactiontimewas5h,thenumberofrecycleofionicliquidswas6,theyieldofPR177was94.6%.5.InpigmentationofPR177,thecomparisonofdifferentmethodsofpigmentationwasstudied.Thesolventtreatmentofthecrudepigmentisbetterthantheothers.Theoptimalreactionconditionswereasfollows:DMFwasSelectedasthesolventofpigmentation,thedosageofDMFwas5timesthanthecrudepigment,thetimeofpigmentationwas0.5h,thetemperatureofpigmentationwas100℃.Thecolors,colorationandtransparencyofPR177weresimilartothestandardsample.KEYWORDS：PR177，Ullmannreaction，Desulfonation，Ionicliquid，Pigmentation目录目录..........................................................................................................................................4第一章文献综述............................................................................................................................11.1颜料红177简介...............................................................................................................11.2PR177的合成2Ullmann缩合反应2Ullmann反应的机理2Ullmann反应合成DAS原料的选择................................................................................................催化剂铜粉的选择....................................................................................酸性催化剂的选择....................................................................................81.2.4脱磺酸基反应......................................................................................................脱磺酸基反应制备PR177离子液体................................................................