| 加盐萃取精馏分离甲乙酮-水恒沸物的研究 |
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| 引用本文： | 陈小平,张珠. 加盐萃取精馏分离甲乙酮-水恒沸物的研究[J]. 烟台大学学报(自然科学与工程版), 2002, 15(2): 128-132 |
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| 作者姓名： | 陈小平 张珠 |
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| 作者单位： | 1. 烟台大学,化学工程系,山东,烟台,264005
2. 山东绿叶制药有限股份公司,山东,烟台,264003 |
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| 摘 要： | 以乙二醇与醛酸钾的混合物作萃取剂，采用加盐萃取精馏的方法对甲乙酮－水二元恒沸体系进行分离，设计了工艺流程，确定了操作条件，得到了纯度为99．5％的甲乙酮产品，萃取剂可用减压蒸馏的方法回收，回收的萃取剂循环使用基本不影响分离性能，结果表明乙二醇与醛酸钾的混合物是分离甲乙酮－水二元恒沸物的理想萃取剂。
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| 关 键 词： | 加盐萃取精馏 甲乙酮－水恒沸物 乙二醇 醋酸钾 萃取剂 分离性能 气液平衡 |
| 文章编号： | 1004-8820(2002)02-0128-05 |
Study on the Separation of Azeotrope of Methyl Ethyl Ketone-water System Using Extractive Distillation with Salt |
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| CHEN Xiao ping ,ZHANG Zhu. Study on the Separation of Azeotrope of Methyl Ethyl Ketone-water System Using Extractive Distillation with Salt[J]. Journal of Yantai University(Natural Science and Engineering edirion), 2002, 15(2): 128-132 |
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| Authors: | CHEN Xiao ping ZHANG Zhu |
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| Affiliation: | CHEN Xiao ping 1,ZHANG Zhu 2 |
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| Abstract: | The separation of azeotrope of methyl ethyl ketone water has been investigated by extractive distillation using the mixture of ethylene glycol and potassium acetate as an extractant. The process flow sheet and operation conditions have been determined and the purity (as mass fraction) of methyl ethyl ketone can reach 99.5%. The extractant can be recovered through reduced pressure distillation and the recovered extractant can be reused without influencing the separation. The results show that the mixture of ethylene glycol and potassium acetate is a very effective extractant in the separation of azeotrope of methyl ethyl ketone water. |
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| Keywords: | methyl ethyl keton water system azeotrope ethylene glycol potassium acetate extractive distillation with salt |
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