Luo Yuchang

（Research Institute of Shandong Aluminium Co.，Zibo255061

Abstract

In this paper，the solid-state reaction of Al₂O₃ rich region in Al₂O₃-Na₂O-CaO-SrO system is studied by X-ray diffractometer，TG-DTA and IR-440 infrared spectrometer.T he experimental results show that the final phase composition of solid-state reaction in the calcinating process are Na₂O·11Al₂O₃，CaO·6Al₂O₃，SrO·6Al₂O₃ and α-Al₂O₃.

Keywords：Al₂O₃-Na₂O-CaO-SrO system； Al₂O₃-rich region；solide-state reaction

DOI：10.13732/j.issn.1008-5548.1999.01.002