反应条件对钴催化混合辛烯氢甲酰化反应的影响  

Effect of Reaction Conditions on Hydroformylation of Mixed Octenes Catalyzed by Co Catalyst

作　　者：魏岚[1] 贺德华[1] 董国利[1] 

机构地区：[1]有机光电子与分子工程教育部重点实验室清华大学化学系,北京100084

出　　处：《石油化工》2004年第6期512-515,共4页Petrochemical Technology

摘　　要：采用醋酸钴为催化剂前体研究了钴催化剂对混合辛烯氢甲酰化制备异壬醛的催化性能,并考察了溶剂及反应条件的影响。实验结果表明,选用甲醇作溶剂,促进了钴催化剂在底物烯烃中的完全溶解,从而有效地提高了原料转化率和异壬醛的收率;反应温度、反应压力、催化剂用量和反应时间等参数对产物异壬醛的收率均有影响,且存在一个最佳范围,即在反应温度160℃、压力8MPa、催化剂用量(Co与烯烃的摩尔比)为0.01、反应时间5h时,可以获得混合辛烯转化率83%、醛收率55.4%的结果。Hydroformylation of mixed octenes to isononyl-aldehydes catalyzed by Co catalyst was investigated using Co(CH3COO)2·4H2O as catalyst precursor. Effect of solvents and reaction conditions were examined. Cobalt could effectively be dissolved in mixed octenes using methanol as solvent. Both conversion of mixed octenes and yield of isononyl-aldehydes increased. A conversion of 83% of mixed octenes and a yield of 55.4% of isononyl-aldehydes were obtained in a methanol/Co catalytic system under the best conditions of 8 MPa,160 ℃, n (Co)/n (octenes) =0.01 ,and 5 hours.

关 键 词：钴催化剂 氢甲酰化 混合辛烯 异壬醛 合成气 

分 类 号：TQ224.1[化学工程—有机化工]