DSD酸中主要有机杂质苄基物的形成和测试  

Formation and Test Methods of Main by-Product 4,4＇ - Diaminodibenzyl- 2,2＇ - Disulfonic Aicd

作　　者：段卫东[1] 任全胜[1] 杜俊霞[1] 程德文[1] 

机构地区：[1]河北华戈化学集团,河北沧州061600

出　　处：《上海染料》2011年第1期22-25,共4页Shanghai Dyestuffs

摘　　要：介绍了DSD酸中主要有机杂质苄基物的形成机理，目前的研究认为是源于氧化反应不完全的残留物及还原反应控制不好的生成物，简介了减少生成苄基物的措施，测定苄基物的纸层析法及高效液相色谱法，详细介绍了高效液相色谱法检测苄基物的操作过程。Incompletion of oxidation and inefficient control of reduction conditions were the reason of formation of 4,4＇-Diaminodibenzyl-2,2＇-disulfonic acid, which is the main by-product in the synthesis of DSD acid. The methods of reducing of were presented. The test methods by TLC or HPLC were introduced and the operation process of HPLC was described.

关 键 词：DSD酸 苄基物 氧化 选择性还原 纸层析法 高效液相色谱法 

分 类 号：TQ153[化学工程—电化学工业]