硅藻土磷酸盐催化剂中游离磷酸对丙烯齐聚的催化活性  

Catalytic Performance of Free Phosphoric Acid in Diatomite phosphate Catalyst toward Propylene Oligomerization

作　　者：陈永福[1] 朱志荣[1] 姚亚平[1] 袁梅卿[1] 徐菁[1] 何立[1] 

机构地区：[1]上海石油化工研究院,上海201208

出　　处：《化学世界》2000年第6期324-326,共3页Chemical World

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.

关 键 词：丙烯剂聚 硅藻土磷酸盐 催化剂 游离磷酸 聚丙烯 

分 类 号：O643.36[理学—物理化学] O632.12[理学—化学]