摘要
在研究了现有生产硝基萘磺酸还原生产周位酸工艺的基础上,采用绿色新工艺,利用 自制的混合催化剂,对影响反应的各种因素进行了研究,并通过实验选定了优化工艺条件。实验结 果表明,在温度95℃,催化剂用量为硝基物质量的O．5％,反应时间为5h左右。产物收率在98％ 以上(以总氨基值计),还原率为99％以上。
The peri acid （Laurent＇ acid） was synthesized from nitronaphthalenesulfonic acid by mixed catalyst made by laboratory, and the novel green catalytic hydrogenation technology in the preparation of periacid was adopted The factors that influenced the reaction conditions were studied, and the proper technological parameters were ascertained by experiments. The results showed that the ratio of catalyst to the main reactants was 0.5%, the reaction temperature was 95℃, and reaction time was 5 h. Under those conditions, the yield was up to 98% （in total amino mass）, and the ratio of hydrogenation reductive was up to 99%.
出处
《精细化工中间体》
CAS
2005年第5期30-31,共2页
Fine Chemical Intermediates
关键词
硝基萘磺酸
周位酸
催化加氢
nitronaphthalenesulfonic acid
peri acid
catalytic hydrogenation
