采用水热合成法合成了SAPO-17分子筛，通过在合成过程中添加氢氟酸和无机盐氯化钾，不仅大大缩短样品的晶化时间，还合成出高硅铝摩尔比的SAPO-17分子筛。通过XRD和SEM等表征手段考察了HF和KCl对合成分子筛的影响。采用XRD、SEM、FT-IR、NH₃-TPD等方法考察了最优条件（Al₂O₃：P₂O₅：SiO₂：CHA：H₂O：HF：KCl=1：1：0.1：1.1：50：0.9：0.01）下合成的SAPO-17分子筛的物化性能及MTO催化性能。结果表明，合成的分子筛具有优异的MTO催化性能，低碳烯烃的选择性达84.03%。

SAPO-17 molecular sieve is synthesized through the hydrothermal synthesis process.By adding hydrofluoric acid and potassium chloride during the synthesis process,the crystallization time of samples is shortened greatly and the synthesized SAPO-17 molecular sieve has a higher silica-alumina ratio.The effects of HF and KCl on the synthesis of molecular sieves are investigated by XRD and SEM.The physiochemical properties and catalytic performance of the SAPO-17 molecular sieves synthesized under the optimal conditions of Al₂O₃:P₂O₅:SiO₂:CHA:H₂O:HF:KCl=1:1:0.1:1.1:50:0.9:0.01 are characterized by XRD,SEM,FT-IR and NH₃-TPD.The results show that this SAPO-17 molecular sieve has excellent catalytic performance to MTO reaction,with a selectivity of low-carbon olefins being 84.03%.

王亚培(1993-),女,硕士研究生,主要研究方向为催化新材料的制备,wypwmm811@163.com