Pd/C催化剂选择加氢合成4,4’-二氨基二苯乙烯-2,2’-二磺酸  

Synthesis of 4,4' - Diaminostilbene-2,2' - Disulfonic Acid by Palladium - Carbon Selective Hydrogenation

作　　者：赵晓波[1] 陈宏博[1] 张淑芬[1] 

机构地区：[1]大连理工大学化工学院,辽宁大连116012

出　　处：《石油化工》2003年第11期941-943,共3页Petrochemical Technology

基　　金：国家自然科学基金资助项目(29776007)

摘　　要：在水介质中,采用Pd/C-OVN复合催化剂,研究了4,4’-二硝基二苯乙烯-2,2’-二磺酸(DNS)选择加氢合成4,4’-二氨基二苯乙烯-2,2’-二磺酸。用正交设计法对工艺条件进行优化,得出最佳反应条件为:原料DNS质量浓度200 g/L,Pd/C催化剂用量2.0％,助催化剂OVN用量0.8％,反应温度65℃。在此条件下考察了催化剂的稳定性,产物结构经红外光谱确证。Preparation of 4,4' - diaminostilbene-2,2' - disulfonic acid (DSD acid) via selective hydrogenation of 4,4' - dinitrostilbene - 2,2' - disulfonic acid (DNS) was studied using Pd/C-OVN as complex catalyst in aqueous medium. Optimum reaction conditions determined by orthogonal experiments were as follows:mass concentration of DNS, 200 g/L; mass ratio of Pd/C catalyst to DNS, 2.0%; mass ratio of co - catalyst OVN to DNS,0.8% ;reaction temperature,65 ℃ . Stability of complex catalyst was studied under optimum conditions. Structure of the product was characterized by IR.

关 键 词：4 4′-二氨基二苯乙烯-2 2′-二磺酸 4 4′-二硝基二苯乙烯-2 2′-二磺酸 加氢 PD/C催化剂 

分 类 号：O625[理学—有机化学] O643.36[理学—化学]