| 新型柴油添加剂聚缩醛二甲醚的分离研究 |
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| 引用本文： | 胡国庆,田恒水,魏永梅,黄婕. 新型柴油添加剂聚缩醛二甲醚的分离研究[J]. 石油与天然气化工, 2015, 44(5): 52-54, 59 |
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| 作者姓名： | 胡国庆 田恒水 魏永梅 黄婕 |
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| 作者单位： | 华东理工大学化工学院,华东理工大学化工学院,华东理工大学化工学院,华东理工大学化工学院 |
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| 摘 要： | 利用萃取等方法处理原料,有效地减轻了塔堵塞和共沸夹带过多的问题。采用常-减压精馏相结合的方法对聚缩醛二甲醚进行了分离,得到了各产物分离的较佳工艺条件。实验中得到了纯度(质量分数)分别为99.06%的甲缩醛、97.81%的二聚产物、99.68%的三聚产物以及99.62%的四聚产物,为工业化分离提纯聚缩醛二甲醚提供了基础依据。
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| 关 键 词： | 萃取 聚缩醛二甲醚 分离 精馏 |
| 收稿时间： | 2015-05-13 |
Study on separation of a new diesel fuel additive polyoxymethylene dimethyl ethers |
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| Hu Guoqing,Tian Hengshui,Wei Yongmei and Huang Jie. Study on separation of a new diesel fuel additive polyoxymethylene dimethyl ethers[J]. Chemical Engineering of Oil and Gas, 2015, 44(5): 52-54, 59 |
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| Authors: | Hu Guoqing Tian Hengshui Wei Yongmei Huang Jie |
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| Affiliation: | College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China,College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China,College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China and College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | The raw material was treated by extraction, which effectively reduced the tower plugging and azeotropic entrainment. Polyoxymethylene dimethyl ethers (PODE) were separated by atmospheric-vacuum rectification and the optimal technical conditions of each product separation were achieved. In the experiment, the purity of each product reached methyl 99.06%, PODE2 97.81%, PODE3 99.68%, and PODE4 99.62%, which could provide an experimental basis for industrial purification of polyoxymethylene dimethyl ethers. |
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| Keywords: | extraction polyoxymethylene dimethyl ethers separation rectification |
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