| 固定床法氧化羰基化合成碳酸二苯酯工艺研究 |
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| 引用本文： | 吴广文,吴元欣,马沛生,金放. 固定床法氧化羰基化合成碳酸二苯酯工艺研究[J]. 化学工程, 2007, 35(12): 71-74 |
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| 作者姓名： | 吴广文 吴元欣 马沛生 金放 |
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| 作者单位： | 武汉工程大学,湖北省新型反应器与绿色化学工艺重点实验室,湖北,武汉,430074;天津大学,化工学院,天津,300072;武汉工程大学,湖北省新型反应器与绿色化学工艺重点实验室,湖北,武汉,430074;天津大学,化工学院,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(20476083) |
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| 摘 要： | 以Pd-Cu/La0.5Pb0.5MnO3为催化剂,采用固定床反应器较为系统地考察了反应温度、压力、气体和液体流率、溶剂等因素对苯酚氧化羰基化合成碳酸二苯酯(DPC)反应的影响。结果表明:以碳酸二甲酯为溶剂、四丁基溴化铵为助催化剂,当反应液中苯酚的质量分数为30%,混合气体中氧气的质量分数为5%,反应液体体积流量为10mL/m in,反应气体体积流量为200 mL/min,反应温度80℃,反应压力为2.5 MPa,DPC的收率为4%左右,DPC的选择性在99%以上,具有较好的应用前景。
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| 关 键 词： | 碳酸二苯酯 氧化羰基化 固定床反应器 |
| 文章编号： | 1005-9954（2007）12-0071-04 |
Study on catalytic synthesis of diphenyl carbonate by oxidative carbonylation based on fixed bed method |
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| WU Guang-wen,WU Yuan-xin,MA Pei-sheng,JIN Fang. Study on catalytic synthesis of diphenyl carbonate by oxidative carbonylation based on fixed bed method[J]. Chemical Engineering, 2007, 35(12): 71-74 |
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| Authors: | WU Guang-wen WU Yuan-xin MA Pei-sheng JIN Fang |
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| Abstract: | The effects of reaction temperature,pressure,gas and liquid flow rate and solvent on the synthesis of diphenyl carbonate(DPC) were studied in fixed-bed reactor using Pd-Cu/La0.5Pb0.5MnO3 catalyst.The results show that the DPC yield and selectivity reach 4% and above 99% respectively under the following conditions: dimethly carbonate(DMC) used as solvent,tetrabutylammonium bromide(TBAB) used as co-catalyst,mass fraction of phenol in the reaction liquids is 30% and mass fraction oxygen is 5% in the mixed gas.The flow rate of mixed gas and liquids is 200 mL/min and 10 mL/min,respectively.The reaction temperature is 80 ℃ and reaction pressure is 2.5 MPa.The synthesis technology studied is prospective to industrial application. |
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| Keywords: | diphenyl carbonate oxidative carbonylation fixed-bed reactor |
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