以季铵盐为模板剂,用水热法合成了文献上从未报导过的新型磷酸铝分子筛,CNU—n(n=1,2,3)。由x射线衍射图及红外光谱图的测定,表明这些样品经600℃焙烧后发生或多或少的骨架改变,最终形成“筛子”。用真空法测定水及几种碳氢化合物在CNU—n上的吸附等温线,结果表明CNU—1的孔径为0.3nm,CNU—2的孔径介于0.41及0.58之间,且CNU—3为大孔筛子,其孔径为0.8nm。 New quaternary ammonium phosphate molecular sieves CNU-n (n = 1, 2, 3) were synthesized by hydrothermal method using quaternary ammonium salt as templating agent. From the X-ray diffraction pattern and infrared spectroscopy measurements, these samples after calcination at 600 ℃ more or less skeleton changes, the final formation of “sieve.” The adsorption isotherms of water and several hydrocarbons on CNU-n were measured by vacuum method. The results showed that the pore size of CNU-1 was 0.3nm, the pore size of CNU-2 was between 0.41 and 0.58, and CNU-3 was Macroporous sieves with a pore size of 0.8 nm.