新晶态磷酸铝分子筛CFAP-6的合成与性质

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (2): 186.

新晶态磷酸铝分子筛CFAP-6的合成与性质

龙英才, 董玲珍, 贺鹤勇

复旦大学化学系

收稿日期:1986-08-27 出版日期:1988-02-24 发布日期:1988-02-24
基金资助:
中国科学院科学基金

Synthesis and Characterization of a Novel Crystalline AlPO₄ Molecular Sieve CFAP-6

Long Yingcai, Dong Lingzhen, He Heyong

Department of Chemistry, Fudan University, Shanghai

Received:1986-08-27 Online:1988-02-24 Published:1988-02-24

摘要/Abstract

摘要： 磷酸铝分子筛是新的一类晶态无机材料.1982年美国联合碳化物公司首次公布了约廿种不同结构的磷酸铝分子筛的合成专利^[1],作者在研究P₂O₅-Al₂O₃-H₂O系统的水热合成中^[2],发现用Al₂(SO₄)₃溶液作为Al₂O₃源,固体(NH₄)₃PO₄·3H₂O作为P₂O₅源,加入适量的有机胺,也能合成分子筛相,新晶态分子筛CFAP-6就是用上述原料,在二正丁胺-(NH₄)₂O-P₂O₅-Al₂O₃-H₂O系统中水热合成的。

Abstract: A novel crystalline aluminophosphate CFAP-6 was synthesized hydro thermally in a system of di-n-butylamine-(NH₄)₂O-P₂O₅-Al₂O₃-H₂O, the P₂O₅ and Al₂O₃ sources of which were (NH₄)₃PO₄·3H₂Oand Al₂(SO₄)₃ aqueous solutionrespectively.The mole ratio composition of rcactant was: di-n-butylamine/(NH₄)₂O/P₂O₅/Al₂O₃/H₂O = (1~1.2)/(3~3.6)/(l~1.2)/l/67.The reaction is conducted at 200℃. Investigations of DTA, XRD, IRand the adsorption experiment show that transformation of the raw powder (phase a) into more stable crystal form (phase b) with properties of molecular sieve, on heating at 350℃ and giving H₂O and amine(or ampnia) off. Isotherms for the adsorption of H₂O and CH₃OH at 23℃ indicate that the dimension of the adsorption window of CFAP-6 is between 4.3 and 4.9Å and the. capacity about 0.07mL/g.

TrendMD:

龙英才, 董玲珍, 贺鹤勇. 新晶态磷酸铝分子筛CFAP-6的合成与性质. 高等学校化学学报, 1988, 9(2): 186.

Long Yingcai, Dong Lingzhen, He Heyong . Synthesis and Characterization of a Novel Crystalline AlPO₄ Molecular Sieve CFAP-6. Chem. J. Chinese Universities, 1988, 9(2): 186.