配位改性的Pt/C催化剂高选择性加氢合成3-氯-2-甲基苯胺  

Synthesis of 3-chloro-2-methylaniline by high selective hydrogenation with ligand modified Pt/C catalyst

作　　者：李华 

机构地区：[1]常州亚邦申联化工有限公司,江苏常州213001

出　　处：《化学工业与工程技术》2012年第1期11-13,共3页Journal of Chemical Industry & Engineering

摘　　要：采用含氮有机化合物对炭载铂催化剂进行了配位改性,研究了改性剂对催化剂抑制脱氯性能以及催化加氢反应条件对芳胺选择性的影响。结果表明,经过改性的铂炭催化剂加氢反应转化率100%,脱氯产物小于0.1%,一次性得到高品质的医药级精细化工中间体。催化剂循环套用20次未见明显失活现象。The Pt/C catalyst is modified by nitrogenous organic compounds. The effects of modifier on the restrain dechlo- ridation performance of the catalyst and the reaction conditions on the selectivity to arylamine are studied. The results show that the selectivity to 3-chloro-2-methylaniline reaches above 99.90% at the conversion of 100%. The catalyst can be recycled more than 20 times without notable decrease of catalytic activity and selectivity.

关 键 词：催化加氢 抑制脱氯 铂炭催化剂 

分 类 号：TQ246.31[化学工程—有机化工]