| 减压精馏分离乙醇与异丙醇二元混合和物 |
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| 引用本文： | 曹裕清,李志中,王施芹,肖杨.减压精馏分离乙醇与异丙醇二元混合和物[J].化学工程师,2011(7):12-14,26. |
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| 作者姓名： | 曹裕清 李志中 王施芹 肖杨 |
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| 作者单位： | 中南民族大学,化学与材料科学学院,湖北,武汉,430074 |
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| 基金项目： | 中南民族大学学生科研基金(KYCX100209Z) |
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| 摘 要： | 乙醇与异丙醇二元混合物因两者存在结构和化学性质相似而难分离.对减压精馏分离乙醇与异丙醇工艺条件进行了探索,因折光率与溶液组成存在一一对应关系,进而利用阿贝折射仪进行纯度分析,考察了填料类型、真空度、溶液组成等对产物分离纯度的影响.实验研究结果表明,在以金属螺旋弹簧柱作精馏柱填料,塔顶真空度为700mmHg(93.33k...
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| 关 键 词： | 乙醉 异丙醇 精馏分离 |
Separation of the ethanol-isopropanol binary mixture based on reduced pressure rectification |
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| CAO Yu-qing,LI Zhi-zhong,WANG Shi-qin,XIAO Yang.Separation of the ethanol-isopropanol binary mixture based on reduced pressure rectification[J].Chemical Engineer,2011(7):12-14,26. |
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| Authors: | CAO Yu-qing LI Zhi-zhong WANG Shi-qin XIAO Yang |
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| Affiliation: | CAO Yu-qing,LI Zhi-zhong,WANG Shi-qin,XIAO Yang(College of Chemistry and Material Science,South-Central University for Nationalities,Wuhan 430074,China) |
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| Abstract: | It is difficult to separate the binary mixtures of ethanol and isopropanol because both are similar in the structure and chemical properties.The separation based on reduced pressure rectification was investigated.A certain refractive index corresponds to a certain solution composition.The purity of ethanol was analysed by Abbe refractometer.The effect of the packing type,vacuum and solution composition on the purity of the product was studied.The results show that the mole fraction of ethanol can rise from ... |
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| Keywords: | ethanol isopropanol rectification separation |
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