巯基助催化剂对双酚A催化剂活性影响  

Effects of thiol-cocatalysts on the activity of bisphenol A catalysts

作　　者：马少波[1] 王坤[1] 吴晓妮[1] 顾城[1] 

机构地区：[1]西北化工研究院,陕西西安710061

出　　处：《工业催化》2015年第2期103-105,共3页Industrial Catalysis

摘　　要：选择4种不同结构的巯基试剂青霉胺、二甲基色胺、N,N-二乙基-4-巯基丁胺和N,N-二甲基-3-巯基丙胺对主催化剂改性,并进行活性评价,结果表明,N,N-二甲基-3-巯基丙胺对双酚A催化剂改性效果最佳,在苯酚与丙酮物质的量比10∶1、反应温度（60-90）℃、空速1 h-1及催化剂用量20 m L条件下,丙酮转化率大于91%,双酚A选择性大于97%。在实验室条件下,助催化剂用量0.7 g和改性时间2 h时,双酚A催化剂活性最好。The main catalysts were modified by four different thiol-cocatalysts such as penicillamine,dime-thyl tryptamine,N,N-diethyl-4-mercapto-butylamine and N,N-dimethyl-3-mercapto-propylamine,and their activity was evaluated. The results showed that N,N-dimethyl-3-mercapto-propylamine exhibited the best modification effect on bisphenol A catalyst. Acetone conversion of over 91% and the selectivity to bisphenol A of more than 97% were attained under the condition as follows：molar ratio of phenol to acetone 10∶ 1,reaction temperature（60 - 90）℃,space velocity 1 h - 1 and catalyst dosage 20 mL. Under the laboratory condition of cocatalyst dosage 0. 7 g and modification time 2 h,the modified catalyst possessed the best catalytic activity.

关 键 词：催化化学 双酚A 巯基试剂 助催化剂 

分 类 号：TQ426.98[化学工程] TQ243.1