酸-酸法合成甲基异丙基酮催化剂的研究  

Study on the catalyst for the synthesis of methyl-isopropylketone from iso-butyric and acetic acid

作　　者：邓广金[1] 焦立平[1] 董肇勇[1] 

机构地区：[1]中国石油吉林石化公司研究院,吉林吉林132021

出　　处：《化工科技》2006年第3期27-29,39,共4页Science & Technology in Chemical Industry

摘　　要：研究了酸-酸法合成甲基异丙基酮催化剂,利用扫描电镜(SEM)、X射线衍射(XRD)和表面酸性分析等手段,进行新鲜催化剂和评价1 300 h的催化剂表征。结果表明,催化剂的活性中心不是氧化稀土晶胞;增加氧化钕和氧化镨(RE1O+RE2O)可提高催化剂的低温活性,抗积碳能力弱;加入氧化铈(RE3O)抗积碳能力强;降低酸强度有利于提高催化剂的选择性,延长催化剂的寿命。The catalyst for methyl-isopropylketone synthesis,was investigated. The fresh catalyst and 1 300 hours used catalyst were characterised by SEM ,XRD,TPD and IR. The results show that RE oxide crystals are not active sites. With the increase of RE1 and RE2 sum, the low temperature activity of catalyst is improved, and with the increase of RE3, the resistance to coke deposition capabihty improved. Decrease the acid intensity, the selectivity and life of catalyst can improve.

关 键 词：催化剂 甲基异丙基酮 异丁酸 乙酸 

分 类 号：TQ224.22[化学工程—有机化工]