作　　者： ; ; ; ; (刘松涛）; (姚宁）;

机构地区： 郑州大学化工与能源学院

出　　处： 《现代化工》 2016年第8期154-157,共4页

摘　　要： 以2-甲基萘(工业级)和空气中氧为原料,通过不同反应温度和单管空气流量,在工业级单管装置上考察了自制钒系催化剂催化氧化制2-甲基-1,4-萘醌的活性、选择性和稳定性;并利用X粉末衍射仪(XRD)、扫描电镜(SEM)等表征方法对催化剂反应前后形貌和晶相结构进行表征。结果表明,反应温度390℃,单管空气流量4.5 m3/h,甲基萘转化率不低于64%,2-甲基-1,4-萘醌选择性可达35%以上,2-甲基-1,4-萘醌单程质量收率大于24%;催化剂反应前后外观形貌基本一致,物相稳定。工业级单管试验与实验室结果重现性高。 The activity,selectivity and stability of home-made vanadium catalyst on the industrial grade single pipe device are investigated by using 2-methyl naphthalene（ industrial grade） and oxygen of the air as raw materials under different reaction temperature and single pipe air flowing. The morphology and crystal structure of catalyst before and after reaction are characterized by XRD and SEM. The experimental results show that the selectivity of 2-methyl-1,4-naphthoquinone can reach above 35% under the premise of no less than 65% of methyl naphthalene conversion rate,and single mass yield of 2-methyl-1,4-naphthoquinone is greater than 24% at reaction temperature 390℃ and single pipe air flowing 4. 5 M3/h. Exterior morphology of catalyst before or after reaction is consistent and the phase is stable. Single pipe experiment of industrial grade repeats with laboratory results.

关 键 词： 甲基萘 甲基 萘醌 氧化 催化剂 单管 工业放大

领　　域： [化学工程]