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| Pd-Cu/La_(0.5)Pb_(0.5)MnO_3上氧化羰基化合成碳酸二苯酯 | |
| 引用本文： | 吴广文,吴元欣,马沛生,金放.Pd-Cu/La_(0.5)Pb_(0.5)MnO_3上氧化羰基化合成碳酸二苯酯[J].精细化工,2007,24(9):923-926. |
| 作者姓名： | 吴广文 吴元欣 马沛生 金放 |
| 作者单位： | 1. 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 2. 天津大学化工学院,天津,300072 3. 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 |
| 摘 要： | 针对氧化羰基化合成碳酸二苯酯反应过程在低氧浓度下催化剂活性低的特点,研制出一种高效负载型双金属催化剂Pd-Cu/La0.5Pb0.5MnO3,并采用向反应体系中连续通入CO、O2的混合气体对苯酚氧化羰基化合成碳酸二苯酯(DPC)。实验表明,Pd-Cu/La0.5Pb0.5MnO3催化剂适宜的n(Cu)∶n(Pd)=1∶1,在苯酚50 g,催化剂1.0 g,通氧速度15 mL/min,CO进料速度285 mL/min,反应压力1.0 MPa,反应温度80℃条件下,反应5 h时,DPC产率达16.4%。 |
| 关 键 词： | 碳酸二苯酯 氧化羰基化 负载型催化剂 精细化工中间体 |
| 文章编号： | 1003-5214（2007）09-0923-04 |
| 修稿时间： | 2006-10-11 |
Study of Catalytic Synthesis of Diphenyl Carbonate by Oxidative Carbonylation over Pd - Cu/La0.5Pb0.5MnO3 |
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| WU Guang-wen,WU Yuan-xin,MA Pei-sheng,JIN Fang.Study of Catalytic Synthesis of Diphenyl Carbonate by Oxidative Carbonylation over Pd - Cu/La0.5Pb0.5MnO3[J].Fine Chemicals,2007,24(9):923-926. | |
| Authors: | WU Guang-wen WU Yuan-xin MA Pei-sheng JIN Fang |
| Affiliation: | Hubei Province Key Laboratory of Novel Chemical Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430074 ,Hubei, China; School of Chemical Engineering and Technology, Tianfin University, Tianfin 300072, China |
| Abstract: | Aiming at the poor performances of catalysts for oxidative carbonylation to synthesize diphenyl carbonate(DPC) at the low oxygen content,a novel efficient supported bimetallic catalyst Pd-Cu/La0.5Pb0.5MnO3 was developed.The mixture of CO and O2 was introduced into the reactor continuously for the synthesis of DPC.Experimental results showed that the optimal ratio of n(Cu) to n(Pd) in the catalyst is 1.Yield of DPC reached 16.4% under the reaction conditions:phenol 50 g,catalyst 1.0 g,feeding rate of O2 15 mL/min,feeding rate of CO 285 mL/min,reaction pressure 1.0 MPa and reaction temperature 80 ℃. |
| Keywords: | diphenyl carbonate oxidative carbonylation supported catalyst fine chemical intermediate |
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