异丁醛异构为甲乙酮的研究(Ⅲ)  

STUDIES ON THE ISOMERIZATION OF ISOBUTYRALDEHYDE TO METHYL ETHYL KETONE(Ⅲ )

作　　者：王敬春[1] 许章林 张盈珍[1] 李宏愿[1] 

机构地区：[1]中国科学院大连化学物理研究所,大连116023

出　　处：《精细石油化工》1995年第5期48-52,共5页Speciality Petrochemicals

基　　金：国家自然科学基金

摘　　要：首次考察了在SAPO-5、SAPO-11、SAPO-34等磷酸硅铝分子筛及经磷改性的BZSM-5分子筛上异丁醛异构化的性能。在SAPO-11上,目的产物甲乙酮的选择性,与在BZSM-5上相近,可大于70％;BZSM-5经磷改性,异丁醛转化率无明显改变,而甲乙酮的选择性有较大提高,收率可达70％,SAPO-5及SAPO-34由于其孔道大小与反应物及目的产物分子大小不匹配,异丁醛转化率和甲乙酮选择性均甚低。The reactivity of SAPO-5,-11,-34 and phosphorus modified BZSM-5 was investigated. The selectivity of methyl ethly ketone (MEK) from isobutyraldehyde (IBH) could be over 70% at the IBH conversion of 50 -90% on both SAPO-11 and BZSM-5. On phosphorus modified BZSM-5 the conversion of IBH changed slight-ly, and the selectivity of MEK increased obviously. The conversion of IBH and selectivity of MEK were very low over both SAPO-34 and SAPO-5, because their channel sizes do not fit in with the size of reactant IBH or product MEK.

关 键 词：异丁醛 甲乙酮 异构化 

分 类 号：O623.521[理学—有机化学]