| 超临界CO_2与甲醇直接合成碳酸二甲酯 |
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| 引用本文： | 曹发海,刘殿华,柯思明,房鼎业. 超临界CO_2与甲醇直接合成碳酸二甲酯[J]. 华东理工大学学报(自然科学版), 2000, 0(3) |
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| 作者姓名： | 曹发海 刘殿华 柯思明 房鼎业 |
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| 作者单位： | 华东理工大学化学工程系!上海200237 |
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| 基金项目： | 中国石化集团公司科技研究项目! (× 5980 13)，高等学校博士学科点专项基金!资助课题 (970 2 510 5) |
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| 摘 要： | 以碳酸钾和碘甲烷为催化剂 ,在 CO2 的临界点附近研究了由 CO2 与甲醇直接合成碳酸二甲酯 ( DMC)的新工艺 ,考察了反应温度及反应压力对合成 DMC的影响 ;根据超临界 CO2 所具有的性质 ,讨论了该反应的机理。
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| 关 键 词： | 二氧化碳 碳酸二甲酯 甲醇 超临界反应 反应机理 |
Direct Synthesis of Dimethyl Carbonate from Carbon Dioxide and Methanol under Supercritical CO_2 Condition |
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| CAO Fahai,LIU Dianhua,KE Shiming,FANG Dingye. Direct Synthesis of Dimethyl Carbonate from Carbon Dioxide and Methanol under Supercritical CO_2 Condition[J]. Journal of East China University of Science and Technology, 2000, 0(3) |
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| Authors: | CAO Fahai LIU Dianhua KE Shiming FANG Dingye |
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| Affiliation: | CAO Fahai*,LIU Dianhua,KE Shiming,FANG Dingye |
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| Abstract: | The new route of synthesis of dimethyl carbonate by the reaction of methanol with carbon dioxide in the presence of K_2CO_3 and CH_3I near the critical point of CO_2 was studied. The reactions were carried out in a stainless steel autoclave with inner volume of 500 mL provided with a magnetic stirrer and an electric heater. The products were analyzed by means of GC with a thermal conductivity detector. The influences of reaction temperature and pressure on the production of DMC were investigated, respectively. From the viewpoint of the unique characteristic of supercritical CO_2, the reaction mechanism was discussed. |
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| Keywords: | carbon dioxide dimethyl carbonate methanol supercritical reaction reaction mechanism |
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