Crystallization of microporous aluminophosphates and me2+-substituted aluminophosphates investigated by in situ synchrotron x-ray powder diffraction

Abstract In situ synchrotron X-ray powder diffraction was used to investigate the crystallization of microporous aluminophos-phate and of Mg 2+ - and Zn 2+ -substituted aluminophosphates. The gels contained di- n -propylamine as the template, and were heated in quartz glass capillaries at temperatures up to 200 °C. The following crystalline reaction products were formed: MgAPO-39, MgAPO-11, ZnAPO-39, ZnAPO-36, APO-39, APO-31, and APO-11.