非晶态Co-P-B催化剂在1-辛烯氢甲酰化反应中的应用  

Hydroformylation of 1-Octene over Amorphous Co-P-B Catalysts

作　　者：李金金[1,2] 马兰[1,3] 贺德华[1] 李光兴[2,4] 

机构地区：[1]清华大学化学系,有机光电子与分子工程教育部重点实验室,北京100084 [2]华中科技大学化学与化工学院,物理化学与工业催化研究所,武汉430074 [3]防化指挥工程学院,北京102205 [4]华中科技大学材料化学与服役失效湖北省重点实验室,武汉430074

出　　处：《高等学校化学学报》2011年第12期2844-2848,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20921001);国家“九七三”计划项目(批准号:2011CB201405)资助

摘　　要：通过化学还原法制备了不同Co/P和P/B摩尔比的Co-P-B非晶态催化剂.采用XRD,ICP-Mass和氮气吸附-脱附等温线对催化剂的性质进行了表征.在5.0 MPa和120℃条件下,以1-辛烯的氢甲酰化为模型反应,对Co-P-B催化剂的活性进行了评价,并与Co-B及Co-P催化剂进行了比较.结果表明,非晶态Co-P-B催化剂对1-辛烯氢甲酰化反应具有良好的活性和选择性.催化剂中P,B和Co的摩尔比、结构及比表面积等性质影响催化剂的活性和选择性,添加适量的P有助于提高转化率和选择性.在Co-P-B(Co摩尔分数为85.4%,P摩尔分数为3.3%)催化剂上,1-辛烯的转化率为97.2%,C9-醛的选择性达到99.5%.Amorphous Co-P-B catalysts with different Co/P and P/B molar ratios were prepared by chemical reduction method.The catalysts were characterized with XRD,ICP-Mass and N2 adsorption-desorption isotherm.The catalysts were evaluated in the hydroformylation of 1-octene under the reaction conditions of 5.0 MPa and 120 ℃.The results showed that amorphous Co-P-B catalysts exhibited relatively high activity and selectivity in the hydroformylation of 1-octene.The molar ratios of Co/P and P/B,amorphous property and surface area affected the activity and selectivity of the Co-P-B catalysts,and the conversion and selectivity were enhanced by adding appropriate amount of P.Over the Co-P-B catalyst（Co 85.4%,P 3.3%,molar fraction）,97.2% conversion of 1-octene and 99.5% selectivity of C9-aldehyde were obtained under the reaction conditions employed in this study.

关 键 词：非晶态Co-P-B催化剂 氢甲酰化 1-辛烯 

分 类 号：O643.3[理学—物理化学]