摘要
采用离子色谱的方法对硅藻土磷酸盐催化剂的酸性进行了有效的表征 ,催化剂在丙烯齐聚反应中的催化活性与催化剂表面的游离磷酸组成及含量直接相关 ,催化剂中含有 9.1 2 %～ 1 5.93%正磷酸 ( H3 PO4 )和 3.85%～ 4.81 %焦磷酸 ( H4 P2 O7) ,对丙烯齐聚显示较高的催化活性。
Ion chromatography was used to determine the free phosphoric acid in diatomite phosphate catalyst. The relation between catalytic activity with the amount and composition of the free phosphoric acid was studied. The catalyst, composed of 9.12%~ 15.93% H 3PO 4 and 3.85%~4.81 H 4P 2O 7, is of high catalytic activity for propylene oligomerization.
出处
《化学世界》
CAS
CSCD
2000年第6期324-326,共3页
Chemical World
关键词
丙烯剂聚
硅藻土磷酸盐
催化剂
游离磷酸
聚丙烯
propylene oligomerization
diatomite phosphate
catalyst
catalytic performance
free phosphoric acid
ion chromatography
