糖精钠的制作流程设计

第1页共77页目录摘要................................................................1Abstract............................................................2第1章甜味剂概述....................................................31.1性质........................................................31.1.1糖精钠的物理性质......................................31.1.2糖精钠的化学性质......................................31.1.3糖精钠的检测..........................................41.1.4糖精钠的安全性........................................41.1.5致病性................................................51.2发展简史及安全调查演变......................................51.2.1发展简史..............................................51.2.2调查演变..............................................61.3糖精钠的用途................................................91.3.1糖精钠在食品中的应用.................................91.3.2糖精钠在饲料中的应用..................................91.3.3糖精钠在其它工业中的应用.................................10第2章糖精钠工艺生产设计...........................................112.1设计依据与设计原则.........................................122.2基础资料...................................................122.2.1基础性能.............................................122.3工艺参数设计...............................................132.4生产方法和工艺流程设计.....................................132.5技术特点...................................................15第3章物料衡算.....................................................163.1重氮反应釜的物料衡算.......................................173.2置换釜的物料衡算...........................................193.3氨化釜的物料衡算...........................................213.4酸析罐的物料衡算...........................................223.5中和反应的物料衡算.........................................23第2页共77页3.6物料衡算汇总...............................................25第4章热量衡算.....................................................284.1能量衡算原则...............................................284.2重氮罐夹套式换热器换热量计算...............................284.3氨化罐夹套式换热器换热量计算...............................28第5章设备设计与选型...............................................305.2方案选型...................................................315.3搅拌器的类型设计选型.......................................315.4重氮罐的设计及选型.........................................325.5氨化罐的设计和选型.........................................37第6章厂址选择和平面设计...........................................426.1厂址选择的原则.............................................426.2厂区概貌...................................................426.3车间布置设计的要求和原则...................................426.3.1要求.................................................426.3.2、原则................................................43第7章设计评价与总结...............................................45参考文献...........................................................46附录一.............................................................48英文文献翻译.......................................................48附录二.............................................................674、设计的主要内容..................................................675）设计结果汇总表..................................................676、主要参考文献....................................................687、进度安排........................................................68附录三.............................................................691第1页共77页年产3000吨甜味剂生产工艺设计摘要本文讲述了糖精钠的性质，存在形式，制备方案，检测，以及糖精钠在甜味剂中的地位，它的发现，发展，还有糖精钠在目前社会上各个领域的作用。本设计使用了苯酐法的工业生产方法，假设了一个年产3000吨的使用苯酐法生产糖精钠的厂商，并以此命题，进行设计。对整个生产过程中的原料，反应条件，反应过程，反应设备，衡算损失，回收利用等方面进行了整体研究计算。并绘制了CAD图。通过对这个设计的计算，基本了解糖精钠的性质，和整个工艺流程的确定，并进行分析和展望，从而让整个厂商的工艺流程更加完善，绿色，经济效益高。目前我国糖精钠生产方法主要有四种：苯酐法，甲苯法，邻甲基苯胺法，苯酐二硫化物法。其中甲基苯胺法受到原料邻甲基苯胺来源限制，原料成本较高，因而不适合于工业化生产。苯酐二硫化物法由于邻二硫二苯甲酸结构上的空间障碍，与甲醇酯化需在高压釜中进行，反应条件较苛刻，对反应设备要求太高，只进行过中试，也没有实现工业化生产。而甲苯法和苯酐法比较，苯酐法生产糖精钠，在产品收率、产品质量和污染治理等方面有着其他方法不可比拟的优点，是比较适宜的生产方法。关键词：糖精钠，应用，生产，利用，效益1第2页共77页AbstractThisarticletellsthestoryofthenatureofsaccharinsodium,existenceform,preparation,detectionandthestatusofsaccharinsodiuminsweetenersIt'sfoundthatthedevelopmentandsaccharinsodiumintheroleofeveryfieldinsocietyatpresentThisdesignUSESthemethodintheindustrialproductionofphthalicanhydridemethod,assumingthattheuseofanannualoutputof3000tonsofbenzeneanhydridemethodproductionmanufacturerofsaccharinsodium,andproposition,tocarryonthedesign.Onthewholeproductionprocessofrawmaterial,reactioncondition,reactionprocess,reactionequipment,lossofbalance,recycling,etc,hascarriedontheoverallresearch.AnddrawtheCADdrawing.Bythecalculationofthedesign,abasicunderstandingofthenatureofsaccharinsodium,andthedeterminationoftheentireprocess,andanalyzedandprospected,soastoletthevendorprocessmoreperfect,green,higheconomicbenefit.Atpresentourcountrysaccharinsodiumproductionmethodmainlyhasfourkinds:phthalicanhydridemethod,methodoftoluene,methylanilinemethod,methodofbenzeneanhydridedisulfide.Onemethylanilinewaslimitedbyadjacentmethylanilinesourcematerials,therawmaterialcostishigher,andthereforenotsuitableforindustrialproduction.andmethanolesterificationshouldbecarriedoutintheautoclave,reactionconditionsareharsh,thereactionequipmentrequirementistoohigh,onlyforpilot,didnotrealizeindustrializationproducti