KT-02负载型镍催化剂作用下合成4,4’-二氨基二苯醚的工艺研究  

Synthesis of 4,4'-diaminodiphenyl ether on KT-02 Ni /SiO_2 catalyst

作　　者：唐蓉萍[1] 杨兴锴[1] 尚秀丽[1] 吕维华[1] 伍家卫[2] 

机构地区：[1]兰州石化职业技术学院石油化学工程系,甘肃兰州730060 [2]兰州石化职业技术学院继续教育学院,甘肃兰州730060

出　　处：《精细与专用化学品》2013年第11期51-54,共4页Fine and Specialty Chemicals

基　　金：甘肃省省属高校基本科研业务费资助项目(甘财教2009-192)

摘　　要：以新型工业级KT-02 Ni/SiO2为催化剂,液相催化加氢由4,4’-二硝基二苯醚(DNDPE)制备4,4’-二氨基二苯醚(DADPE),用熔点测定和FT-IR等分析测试手段鉴定了其结构。考察了温度、压力、搅拌速度及催化剂加入量等条件对加氢反应的影响,并对催化剂进行了套用实验。结果表明,以甲醇为反应介质,加入10%的KT-02镍催化剂,在90℃、2.0MPa氢压条件下反应8h,DADPE转化率大于98%,反应选择性超过97%;催化剂可至少套用8次。4, 4＇ -diaminodiphenyl ether（DADPE） was synthesized by catalyzing the hydrogenation of 4, 4＇-dinitro- diphenyl ether （DNDPE） with supported KT-02 nickel catalyst, and the structure of DADPE was identified by melting point measurement and FT-IR analyses. The effects of temperature, pressure , stir speed and the amount of catalyst on hy- drogenation reation were studied. The results show that conversion rate was up to 98% ,reaction selectivity was 97% when the amount of catalyst KT-2 was 10% ,the temperature was 90~C ,the pressure was 2. 0MPa,time was 8h. The catalyst can be used for 8 times or more.

关 键 词：负载型KT-02镍催化剂 液相加氢 4 4'-二硝基二苯醚 4 4'-二氨基二苯醚 

分 类 号：TQ243.24[化学工程—有机化工]