在载体银催化剂上戊二醇空气氧化脱氢制取戊二醛  

Air Uxidation-Denydrogenation of Pentanediol-1,5 on Supported Silver Catalyst

作　　者：杜书[1] 胡椒叶[1] 吴荣安[1] 林励吾[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《石油化工》1989年第1期19-23,共5页Petrochemical Technology

摘　　要：本文以戊二醇空气氧化脱氧制取戊二醛,考察了反应条件范围为:压力<4.9×10~3帕(表压),温度440-490℃,空速～50小时^(-1)或更高些,氧醇比(摩尔)1.2—1.5,戊二醇水溶液浓度30-50%(重)。催化剂银含量～30%(重)。发现 Pb 是一个很好的助剂,加入量2—4%(重)。在相同反应条件下,Ag-Pb/a-Al_2O_3催化剂的产率比 Ag/a-Al_2O_3催化剂高10%以上。Pentanediol-1,5 can be produced from cyclopentadiene in C_5 fraction bymeans of photooxidation.In this paper,result of investigation on preparation ofpentanedial from pentanediol by air oxidation-dehydrogenation were reported.Theeffect of reaction parameters on performance of Ag/a-Al_2O_3 catalyst was investi-gated.It was found that Pb was a good promoter for the catalyst.The yield inthe case of Ag-Pb/a-Al_2O_3 catalyst is 10% higher than that in the case of Ag/a-Al_2O_3 catalyst under the same reaction conditions,

关 键 词：银 催化剂 戊二醇 戊二醛 氧化脱氢 

分 类 号：O623.513[理学—有机化学]