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1、辽东学院大学生创新性实验大孔树脂吸附法从卤水中提碘工艺研究TheMacroporousresinadsorbsamethodtowithdrawfromtheiodineintheBrineoftechnologyresearch 辽东学院EasternLiaoningUniversity大孔树脂吸附法从卤水中提碘工艺研究摘要碘是卤族元素之一,亦是生命所必须的微量营养元素。广泛用于医药、燃料、石油、有机合成和感光材料等工业部门的重要化工原料,同时也是一种常用的催化剂和化学分析试剂,但碘在大自然中很少,仅占地壳总重量的一千万分之一。本文采用大孔
2、树脂吸附法从卤水中提取碘。通过对酸化、氧化、流速、解吸及再生条件的讨论,选择了提碘全过程的最佳工艺条件。即在Ph=4.0;配氧化率为130%;吸附流速为6.7ml/min,洗脱流速为4.2ml/min的条件下,树脂的饱和吸附量为0.6544g/g干树脂;碘的氧化率为92.20%;树脂吸碘率为87.24%;碘的洗脱率为93.42%;碘的收率为84.71%。同时利用萃取和蒸馏的方法提取了产品纯碘。该法耗电、耗煤极少,设备简单,操作方便,易于实现机械化、自动化,又适宜低温生产,且只要求原料相对集中。同时树脂还可以再生,循环使用,大大降低了生产成本,
3、为碘的工业化生产提供了必要的参考数据。关键词:树脂吸附;卤水;提碘-I-大孔树脂吸附法从卤水中提取碘的工艺研究TheresinadsorbsamethodtowithdrawthelittleiodineintheBrineofresearchAbstractIodineisoneofthehalogenelements,isalsonecessarytotracethelifeofnutrients.WidelyusedinChinesemedicine,fuel,oil,organicsynthesisandphotosensitivem
4、aterials,andotherimportantindustrialsectorinchemicalrawmaterials,butalsoacatalystforacommonreagentandchemicalanalysis,butverylittleiodineinnature,onlythetotalweightofthecrustofthe10millionsubOne.Inthispaper,MacroporousresinfromtheabsorptioninBrinefromiodine.Throughtheacid、v
5、elocity、desorptionandrenewabletermsofdiscussion,selecttheentireprocessofiodinetothebestofconditions,namelyinthePh=4.0;allocationrateof130percentadsorptionflowrateof6.7ml/min;Elutingflowrateof4.2ml/minundertheconditionsoftheresinsaturatedabsorptioncapacityof0.6544g/gdryresin
6、;iodineoxidationrateof92.20percent;iodineresinabsorptionrateof87.24percent;iodinewashoutratefor93.42percent;Iodineyieldwas84.71percent.Atthesametimeusingthemethodofextractionanddistillationproductsfromthepureiodine.Thepowerlaw,veryfewtousecoal,equipmentsimple,easytooperate,
7、easytoimplementmechanizationandautomation,alsosuitableforlow-temperatureproduction,andonlyrequirestherelativeconcentrationofrawmaterials,resinscanalsorenewable,recycledandgreatlyreducethecostofproduction,TheindustrialproductionofiodinetoprovidethenecessaryreferencedataKeyWo
8、rds:Resin;Brine;Toiodine-III-大孔树脂吸附法从卤水中提取碘的工艺研究目录摘要IAbstractII引言1一、文献综述2(一)概述2(二)