摘要
采用改性RaneyNi催化剂 ,研究了溶剂、温度、压力、催化剂用量对间苯二甲腈 (IPN)加氢合成间苯二甲胺 (m XDA)反应的影响。结果表明 ,该催化剂在以甲醇、甲苯为混合溶剂 ,V(甲醇 )∶V(甲苯 )=1∶2 ,当m(溶剂 )∶m(IPN) =3∶1,反应温度 70℃、压力 6 0～ 7 0MPa、催化剂用量为原料质量 10 %时 ,IPN转化率接近 10 0 % ,m XDA收率达 97%。失活催化剂经再生 ,即能恢复其性能。
Modified Raney Ni catalysts were used for synthesis of m xylenediamine (m XDA) from isophthalonitrile(IPN) by hydrogenation,and effects of solvent,temperature,pressure and amount of catalyst were investigated.When mixture of methanol and toluene (V/V=1∶2) was used as solvent,conversion of IPN was nearly 100% and yield of m XDA achieved 97% at m(mixed solvent)∶m(IPN)=3∶1,reaction temperature 343 K,pressure 6 0-7 0 MPa and weight ratio of catalyst to IPN 1∶9.The deactivated catalyst after regeneration can regain original activity and selectivity.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2000年第9期544-546,551,共4页
Fine Chemicals
关键词
间苯二甲胺
改性RaneyNi催化剂
加氢
再生
isophthalonitrile
m xylenediamine
modified Raney Ni catalyst
hydrogenation
regeneration
