| 常压下甲醇-碳酸二甲酯汽液平衡测定及其萃取剂选择 |
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| 引用本文： | 李群生,朱炜,付永泉,高东江,王海川,王浩,李仑. 常压下甲醇-碳酸二甲酯汽液平衡测定及其萃取剂选择[J]. 化学工程, 2011, 39(8): 44-47 |
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| 作者姓名： | 李群生 朱炜 付永泉 高东江 王海川 王浩 李仑 |
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| 作者单位： | 1. 北京化工大学化学工程学院,北京,100029
2. 兰州新西部维尼龙有限公司,甘肃兰州,730094 |
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| 基金项目： | 国家自然科学基金资助项目(20476005); 国家科技支撑计划课题子课题(2006BA109B07-01) |
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| 摘 要： | 甲醇( MeOH)与尿素催化合成碳酸二甲酯的工艺路线是目前最有发展前途的一种合成方法,但该过程中由于使用了过量的甲醇,在合成中形成了碳酸二甲酯和甲醇的共沸物,分离困难.已报道的分离方法中萃取精馏,在经济效益、操作和安全方面都优于其他方法.草酸二甲酯,碳酸乙烯酯,碳酸丙烯酯均可作为萃取精馏分离DMC的萃取剂,但MeOH-...
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| 关 键 词： | 碳酸二甲酯 甲醇 萃取剂 汽液平衡 |
Vapor-liquid equilibrium of methanol-dimethyl carbonate at normal pressure and selection of extractant |
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| LI Qun-sheng,ZHU Wei,FU Yong-quan,GAO Dong-jiang,WANG Hai-chuan,WANG Hao,LI Lun. Vapor-liquid equilibrium of methanol-dimethyl carbonate at normal pressure and selection of extractant[J]. Chemical Engineering, 2011, 39(8): 44-47 |
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| Authors: | LI Qun-sheng ZHU Wei FU Yong-quan GAO Dong-jiang WANG Hai-chuan WANG Hao LI Lun |
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| Affiliation: | LI Qun-sheng1,ZHU Wei1,FU Yong-quan1,GAO Dong-jiang2,WANG Hai-chuan1,WANG Hao1,LI Lun1(1.College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China,2.Lanzhou New West Vinylon Company Limited,Lanzhou 730094,Gansu Province,China) |
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| Abstract: | The route of catalytic synthesizing dimethyl carbonate by methanol(MeOH) and urea is the most promising synthetic method.But because of the excessive use of methanol,it is difficult to separate dimethyl carbonate and methanol mixture due to the existence of azeotrope in this process.Extractive distillation is more economical,simple,safe and effective than the other separation methods reported,and dimethyl oxalate(DMO),ethylene carbonate(EC) and propylene carbonate(PC) can be used as the extractant.However,t... |
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| Keywords: | dimethyl carbonate methanol extractant vapor-liquid equilibrium |
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