萃取氧化法再生Pd/C催化剂的研究  

Regeneration of Pd/C finasteride synthesis catalyst by extraction-oxidation

作　　者：申利群[1] 尹笃林[2] 吴志鸿[1] 吴爱群[1] 

机构地区：[1]河池学院化生系,广西宜州546300 [2]湖南师范大学精细催化合成研究所,湖南长沙410081

出　　处：《工业催化》2005年第6期42-43,共2页Industrial Catalysis

摘　　要：通过甲醇用量、回流时间和硝酸浓度对催化剂活性的影响进行了讨论,研究了非那甾胺合成工艺中孕烯醇酮氢化Pd/C催化剂的再生方法。实验发现,对于1g废Pd/C催化剂,以30mL甲醇为萃取剂,回流萃取60min,然后用35%的硝酸在80℃氧化30min,可以达到满意的再生效果,新鲜和再生的Pd/C催化剂孕烯醇酮的氢化转化率分别为97 5%和98 5%。<Abstrcat> Regeneration of Pd/C finasteride synthesis catalyst by extraction-oxidation was studied, including the influence of methanol amount, reflux time and nitric acid concentration. Pregnendone conversion of 97.5% was attained after the Pd/C catalyst was treated under following condition: extracting 1 g used Pd/C catalyst with 30 mL methanol at boiling point for 60 min and then oxidating the Pd/C catalyst with 35% nitric acid at 80 ℃ for 30 min.

关 键 词：萃取氧化法 再生 非那甾胺 PD/C催化剂 

分 类 号：TQ426.94[化学工程] TQ226.38