水-丁醇两相介质合成SAPO-11和MgAPO-11分子筛  

Synthesis of SAPO-11 and MgAPO-11 Molecular Sieves in Water-Butanol Biphase Media

作　　者：杨晓梅[1,2] 徐竹生[1] 马怀军[1,2] 徐云鹏[1] 田志坚[1] 林励吾[1] 

机构地区：[1]中国科学院大连化学物理研究所 [2]中国科学院研究生院,北京100049

出　　处：《催化学报》2007年第3期187-189,共3页

摘　　要：在水-丁醇两相介质中合成了SAPO-11和MgAPO-11分子筛.水-丁醇两相介质有利于在SAPO-11中引入更多的Si,从而产生较多的酸性位,以所得SAPO-11为载体的Pt催化剂在正十二烷临氢异构化反应中表现出较高的催化活性.相反,水-丁醇两相介质不利于Mg进入分子筛骨架,导致MgAPO-11上的酸性位减少,Pt/MgAPO-11催化剂的催化活性降低.SAPO-11 and MgAPO-11 molecular sieves were synthesized in water-butanol biphase media. The water-butanol biphase media favored the incorporation of Si into SAPO-11 and the formation of more acid sites. Therefore, the Pt catalyst supported on the SAPO-11 synthesized in the biphase medium exhibited much higher catalytic activity for the hydroisomerization of n-dodecane than that supported on the SAPO-11 synthesized in an aqueous medium. In contrast, the water-butanol biphase media were unfavorable for the Mg substitution into the framework, and thus the acid sites and the catalytic activity of Pt/MgAPO-11 decreased.

关 键 词：SAPO-11 MgAPO-11 水-丁醇两相介质 铂 正十二烷 临氢异构化 

分 类 号：O643.32[理学—物理化学]