丁烯氢甲酰化制备正戊醛  

Hydroformylation of butene for valeraldehyde preparation

作　　者：刘旭[1] 刘仲能[1] 顾松园[2] 

机构地区：[1]中国石化上海石油化工研究院,上海201208 [2]中国石化催化剂有限公司,北京100029

出　　处：《工业催化》2016年第9期65-68,共4页Industrial Catalysis

基　　金：中国石化基金(414088)资助项目

摘　　要：采用二羰基乙酰丙酮铑(Ⅰ)与三苯基膦组成的催化剂,研究均相Rh催化体系用于丁烯氢甲酰化制备正戊醛的反应,考察体系压力和分压、溶剂用量、n(CO)∶n(H2)、三苯基膦用量及添加剂对丁烯氢甲酰化反应的影响,同时探索催化剂的回收重复使用性能。通过实验得到最优反应条件为:反应温度120℃,合成气压力0.30 MPa,N2分压1.70 MPa,χ[二羰基乙酰丙酮铑(Ⅰ)]=0.1%,χ(三苯基膦)=6%,χ(添加剂)=0.1%,反应时间3 h,此条件下,戊醛收率为81.6%,产物正异比为10.63。Using homogeneous Rh catalyst which consisted of dicarbonyl acetylacetone rhodium and triph- enylphosphine, hydroformylation of butene for preparing valeraldehyde was studied. The effects of system pressure and partial pressure, solvent amounts, n （CO） ： n （ H2 ）, ligand triphenylphosphine amounts and additives on butene hydroformylation, and the properties of catalyst repeated use were investigated. The results showed that the yield of valeraldehyde reached 81.6%, and the ratio of normal/iso valeraldehyde reached 10.63 under the optimal reaction condition as follows ：reaction temperature 120 ℃, syngas pressure 0.30 MPa, nitrogen pressure 1.70 MPa, ХX （dicarbonyl acetylacetone rhodium） -0.1%, Х（ tripheny- lphosphine） =6%, Х（ additive ） =0.1% and reaction time 3 h.

关 键 词：精细化学工程 丁烯 氢甲酰化 正戊醛 催化剂回收使用 

分 类 号：TQ426.94[化学工程] TQ224.12