对甲苯磺酸生产技术的研究

扬州工业职业技术学院1扬州工业职业技术学院2008—2009学年第二学期毕业设计（论文）（课程设计）课题名称：对甲苯磺酸生产技术的研究设计时间：2008.10---2009.5系部：化学工程系班级：0601精化姓名：孙玲玲指导教师：王升文扬州工业职业技术学院2答辩情况答辩教师：年月日评语成绩评定指导教师：年月日扬州工业职业技术学院3目录摘要Abstract第一章绪论1.1对甲苯磺酸的主要性质...........................................................................................71.2对甲苯磺酸的应用...................................................................................................71.2.1催化剂..................................................................................................................71.2.2有机合成.............................................................................................................71.2.3稳定剂................................................................................................................7第二章对甲苯磺酸的合成方法及本论文的研究内容............................................92.1对甲苯磺酸的主要合成方法.....................................................................................92.2对甲苯磺酸合成方法的优劣比较.............................................................................102.3国内对甲苯磺酸生产工艺存在的问题.....................................................................11.2.4我国三氧化硫磺化装置的现状及发展趋势...............................................................132.5研究课题的提出及意义..........................................................................................142.6本论文的主要研究内容........................................................................................15第三章实验部分....................................................................................................173.1实验方案.............................................................................................................173.1.1实验目的...........................................................................................................173.1.2分析方法...........................................................................................................173.2试剂与仪器............................................................................................................173.2.1试剂....................................................................................................................173.2.2原料的物性数据.................................................................................................173.2.3仪器..................................................................................................................183.3.试验过程.............................................................................................................183.4结果与讨论...........................................................................................................193.4.1反应温度的影响................................................................................................193.4.2配气比的影响....................................................................................................203.4.3原料水含量的影响.............................................................................................223.4.抑制剂的影响........................................................................................................23扬州工业职业技术学院43.5小结..................................................................................................................23第四章结论........................................................................................................25参考文献..............................................................................................................26致谢....................................................................................................................27扬州工业职业技术学院5对甲苯磺酸的研究孙玲玲0601精化摘要：本文对三氧化硫法生产对甲苯磺酸中的反应条件进行了研究，调整和优化磺化工艺条件，向反应中添加少量的抑制剂，在降低邻、间位甲苯磺酸生成，提高对甲苯磺酸的产率。重点考察了反应温度、配气比、原料水含量、抑制剂对选择性和收率的影响。研究结果表明：（1）适当降低反应温度有利于减少副产物二甲苯砜生成，宜为10℃；（2）SO3浓度为6％(volume)是一个比较合适的配气浓度；（3）稀释气水含量较高时二甲苯砜生成量略微减少，但甲苯磺酸异构体定位效果不好；（4）以二甲苯砜为抑制剂，可以达到抑制副产物二甲苯砜生成及甲苯磺酸异构体定位的双重目的。简要讨论了硫酸法生产对甲苯磺酸的优劣，反映出三氧化硫法的优势。关键词：对甲苯磺酸磺化三氧化硫工艺条件二甲苯砜扬州工业职业技术学院6ThetoluenesulfonicacidresearchSunlingling0601purificationAbstract:Thisarticlehasconductedtheresearchtothesulfurtrioxidelawproductiontointhetoluenesulfonicacidresponsecondition,theadjustmentandtheoptimizedsulfonationtechnologicalconditions.Increasesthefewinhibitortotheresponsein,inreducestheneighbour,thepositiontoluenesulfonicacidproduction,enhancestothetoluenesulfonicacidproductionrate.Inspectedthereactiontemperaturewithemphasis,hasmatchedwasmadtheratio,rawmaterialwatercontent,theinhibitorandreceivedtotheselectivityratetheinfluenceinfluence.Thefindingsindicatedthat,(1)reducesthereactiontemperaturetobeadvantageoussuitablytothereducedby-productxylenesulphoneproduction,suitablyfor10℃;(2)SO3densityis6%(volume)isonequiteappropriatematchesismadthedensity；(3)thinoutgassingwatercontentishighwhenthexylenesulphoneproductionquantityreducesslightly,butthetoluenesulfonicacidisomerlocalizationeffectisnotgood；(4)takethexylenesulphoneastheinhibitor,mayachievethesuppressionby-productxylenesulphoneproductionandthetoluenesulfonicacidisomerlocalizationdualgoals.Discussedthesulfuricacidmethodproductionbrieflytothetoluenesulfonic