【摘要】 用ＸＲＤ方法考察了以浸渍法负载不同金属离子后，这些离子对γ－Ａｌ２Ｏ３ 载体在１３０℃，２２ｈ 水热及自生压力条件下再水合性质的影响。按氧化铝水合物转化率由大到小的顺序排列， 得到以下结果： Ｋ＋ ＞ Ｃａ２＋ ＞Ｆｅ３＋ ＞ Ｚｒ４＋ ＞ Ｃｕ２＋ ＞ Ｎｉ２＋ ＞ Ｍｇ２＋ ＞ Ｌｉ＋ ＞ Ｃｏ２＋ ， Ｃｅ３＋ ， Ｚｎ２＋ 。更多还原

【Abstract】 The influence of different metal ions on rehydration properties of γ Al 2O 3 supports was investigated through XRD after various metal ions were added by the impregnation method The rehydration process was accomplished under saturated vapor pressure at 130℃ for 22h The sequence of the conversion,from high to low,of alumina hydrate was K +>Ca 2+ >Fe 3+ >Zr 4+ >Cu 2+ >Ni 2+ >Mg 2+ >Li +>Co 2+ ,Ce 3+ ,Zn 2+ .更多还原