摘要
负载型钯酞菁能有效催化CCl2 F2 的选择性加氢脱氯反应 ,在氟化物为载体的钯酞菁催化剂上 ,CCl2 F2转化成CH2 F2 的选择性可达 75 %以上 .对比研究表明 ,负载型钯酞菁催化剂上CCl2 F2 选择性加氢脱氯的稳态催化活性要高于普通的负载型金属钯催化剂 .在钯活性中心引入环状酞菁配体能有效提高催化剂在高腐蚀性反应条件下的稳定性 .红外光谱、X射线衍射和紫外 可见光谱表征揭示了负载型钯酞菁催化剂具有良好催化活性和催化稳定性的可能原因 .
Supported palladium phthalocyanine was found to be an interesting catalyst with good catalytic stability for selective conversion of CCl 2F 2 into CH 2F 2. Particularly, supported palladium phthalocyanine exhibited excellent stability even at low H 2/CCl 2F 2 ratio in the corrosive reaction conditions due to the formation of HCl and HF. Relatively high selectivities towards CH 2F 2 formation (>75%) over palladium phthalocyanine catalysts with fluoride supports were achieved. The fractionally reduce...
